GASKETSGASKETS

ContentsSafe Usage/Explanatory notes for customers ………………………………… 1

Definitions of Terminology …………………………………………………………………………… 2

Gasket Selection ……………………………………………………………………………………………… 3～5

■ High Temperature Use Sheet Gaskets ……………………………………………… 6

■ Joint Sheets ………………………………………………………………………………………………… 7～13

■ Vortex Gaskets ………………………………………………………………………………………… 12～29

■Metal Gaskets ………………………………………………………………………………………… 30～36

■Metal Jacketed Gaskets …………………………………………………………………… 37～39

■ GRASEALTM Gaskets ……………………………………………………………………………… 40～41

■ NAFLONTM Gaskets ……………………………………………………………………………… 42～53

■ Cloth Gaskets ………………………………………………………………………………………… 54～55

■ Rubber Gaskets ……………………………………………………………………………………… 56～57

■ Other Gaskets …………………………………………………………………………………………… 58～59

■ Gasket Paste ……………………………………………………………………………………………… 60～61

■ Standard Dimension Charts …………………………………………………………… 63～108

■Numerical Index …………………………………………………………………………………… 110～112

11

Properties/applications shown throughout this catalog are typical.Performance data referred to in this catalog are based on our own test results and on performance in generalapplications under normal conditions. Products listed in this catalog are used in diverse locations and for numerous types of machinery and equipment, andactual conditions of use also differ extensively. Consequently, when using these products, we recommend that youimplement verification tests under the actual conditions of use.Regarding individual applications, it is necessary to make a selection decision based on individual designs and onsuitability evaluations. For special applications, please consult us. The contents of this catalog are subject to change without prior notice.1. Never use for any purpose other than the prescribed application.2. When processing, use sharp cutting tools.3. Always follow the instructions in this catalog or the instruction manual when installing equipment, etc.4. Do not re-use gaskets unless this is specifically indicated.5. When replacing, carefully remove all of the old material before installing the new product.6. To maintain performance, store packaged products in a cool and dark place.7. Please refer to MSDS (Material Safety Data Sheet) concerning health and hygiene cautions.8. When disposing, comply with all regulations in your country. Waste should be properly disposed of at a permitted

disposal site. Do not incinerate the used products, especially those containing fluoropolymer resin as it will generatetoxic gas when burning.

¡TOMBO“TOMBO” is a registered trademark of NICHIAS Corporation.

¡JIS Japanese Industrial Standards

¡JPI The Japan Petroleum Institute

¡ASME American Society of Mechanical Engineers

¡API American Petroleum Institute

¡BS British Standards

¡ISO International Organization for Standardization

＊All brand names and product names are trademarks or registered trademarks of NICHIAS Corporation.

CAUTIONS!

Safe UsagePlease observe the following in order to obtain the full function of the

products and to ensure safe usage.

Explanatory notes for customersThe following signs and abbreviations are used in this catalogue.

2

In this catalog, the fluids sealed with gaskets are classified as follows.Depending on the type of gasket, however, there are various cases where one typeof gasket cannot always be used in the same way for the same fluid.

(1) Water type fluids Water, brine, hot water, steam, superheated steam.

(2) Oil type fluidsCrude oil, volatile oil, naphtha, kerosene, heavy oil, LPG, alcohol, furfural,ethylene glycol, ethylene, prophylene, B-B fraction, butadiene, liquid ammonia,phenol, acrylonitrile, acetone, acetoaldehyde, benzene, toluene, xylene,ethylbenzene, cyclohexane, tetramethysulphon, tetraethyl lead, etc.

(3) Corrosive fluidsAcids such as mineral acids, organic acids, mixed acids, acidic solutions, etc.,and alkalis.

(4) Gas type fluidsAir, nitrogen gas, combustible gas, combustion promoting gas, incombustiblegas, toxic gas, etc.Places where there is little danger even with some leakage amount of air,nitrogen gas, etc., may also be considered safe like water type fluids; however,the necessary tightening pressure must be secured.

(5) Low-temperature fluidsLPG, liquid ethylene, LNG, liquid nitrogen, liquid air, etc.

Normally, the Wm1 and Wm2 (refer to the equation below) specified in JIS B 8265,etc., may be used as the criterion for determining the required seating stress.

Wm1= G2P+2πbGmP

Wm2=πbGyP = internal pressureG = effective gasket diameterb = effective gasket widthm= gasket factory = minimum designed seating stress

In some cases, however, this seating stress may not be sufficient depending oncertain types of fluids and or certain types of gaskets. So, among the three seatingstresses (Wm1, Wm2, Wm3), the largest value shall be employed as the minimumseating stress.Wm3=σ3 Ag

σ3= minimum seating stressAg = gasket contact area (projected surface area)

The minimum seating stresses used in this catalog is "σ3" in the aboveequation, and not "y".

π–4

Minimum Seating Stress

Fluids

Definitions of Terminology

3

1Fluid

Steam

Hot water

Water

Salt water

(Brine)

Petroleum-

based

carbonatedhydrogen

Gasoline

Naphtha

Kerosene

Light oil

Heavy oil

Lubricating oil

Oil gas

LPG

Alcohol

Animal andvegetable oils

2Temperature（℃）

3Pressure

MPaTOMBO� No. Product name

Remarks

Operating conditions Recommended gasket

18 1850C-G Ring Joint Gasket600

18 1836R-GS Vortex Gasket GS29 1850C-F Ring Joint Gasket

45029 1834R-GR GRASEAL Vortex Gasket

400 3.6 1215,1210-A GRASEAL Gasket PM, MI-A34 1850C-F Ring Joint Gasket

350 34 1834R-GR GRASEAL Vortex Gasket12 1834R-NA NA Vortex Gasket39 1850C-F Ring Joint Gasket

260 39 1834R-GR GRASEAL Vortex Gasket14 1834R-NA NA Vortex Gasket

215 2.0 1120 CLINSIL-Top1.5 9007-LC NAFLON PTFE Low Creep Gasket

2001.5 9007-SC NAFLON PTFE Special Filler Filled Cut Gasket1.0 9007-G20 Glass Fiber Filled PTFE Cut Gasket

1501.0 9010-NA-A-7 NAFLON PTFE Cushion Gasket44 1850C-F Ring Joint Gasket44 1834R-GR GRASEAL Vortex Gasket16 1834R-NA NA Vortex Gasket

100 4.0 1120 CLINSIL-TOP1.8 1995 CLINSIL-Brown1.0 1051-CR Cloth Reinforced Rubber Cut Gasket0.5 9007 NAFLON PTFE Cut Gasket18 1850C-G Ring Joint Gasket

60011 1836R-GS Vortex Gasket GS29 1850C-F Ring Joint Gasket

45017 1834R-GR GRASEAL Vortex Gasket

400 3.6 1215,1210-A GRASEAL Gasket PM, MI-A34 1850C-F Ring Joint Gasket

350 21 1834R-GR GRASEAL Vortex Gasket8.0 1834R-NA NA Vortex Gasket39 1850C-F Ring Joint Gasket23 1834R-GR GRASEAL Vortex Gasket

2609.0 1834R-NA NA Vortex Gasket1.0 1120 CLINSIL-Top1.5 9007-LC NAFLON PTFE Low Creep Gasket

2001.5 9007-SC NAFLON PTFE Special Filler Filled Cut Gasket1.0 9007-G20 Glass Fiber Filled PTFE Cut Gasket

1501.0 9010-NA-A-7 NAFLON PTFE Cushion Gasket44 1850C-F Ring Joint Gasket26 1834R-GR GRASEAL Vortex Gasket11 1834R-NA NA Vortex Gasket

100 3.0 1120 CLINSIL-Top1.8 1995 CLINSIL-Brown0.5 9007 NAFLON PTFE Cut Gasket0.5 9007-LP NAFLON PFA Gasket

Gasket SelectionPlease select a gasket from the following gasket selection table considering 1fluid, 2pressure and 3temperature.

＊This selection guide shows typical recommended gaskets for fluids, temperatures and pressures.

Thus, depending on the other conditions, the products shown here are not necessarily suitable for use in some cases.

＊Please refer to service temperature range of each gasket on this catalog regard the maximum service temperature.

＊In some cases, the product numbers shown here are only representative examples for that type.

4

Aromatics-

based

carbonated

hydrogen

Benzene

Toluene

Xylene

Organic

solutions

Heat transfersolutions

Weak acid

Weak alkali

Salt solutions

AcidsSulphuric acid

Hydrochloric acid

Nitric acid

Acetic acid

18 1850C-G600

11 1836R-GS29 1850C-F

45017 1834R-GR

400 3.6 1215,1210-A34 1850C-F

350 21 1834R-GR8.0 1834R-NA39 1850C-F

260 23 1834R-GR9.0 1834R-NA1.5 9007-LC

2001.5 9007-SC1.0 9007-G20

1501.0 9010-NA-A-744 1850C-F26 1834R-GR11 1834R-NA

100 3.0 9007-LC1.8 9010-NA-A-5,70.5 90070.5 9007-LP9.0 1834R-GR9.0 1834R-NA

2604.6 1215,1210-A1.0 1120 1.5 9007-LC

2001.5 9007-SC1.0 9007-G20

1501.0 9010-NA-A-711 1834R-GR11 1834R-NA

100 1.8 11201.8 19950.5 9007

260 9.0 9090-IOR1.5 9007-LC

2001.5 9007-SC1.0 9007-G20

1501.0 9010-NA-A-711 9090-IOR1.8 9007-LC

1001.0 9010-NA-A-5,70.5 9007

Ring Joint GasketVortex Gasket GSRing Joint GasketGRASEAL Vortex GasketGRASEAL Gasket PM, MI-ARing Joint GasketGRASEAL Vortex GasketNA Vortex GasketRing Joint GasketGRASEAL Vortex GasketNA Vortex GasketNAFLON PTFE Low Creep GasketNAFLON PTFE Special Filler Filled Cut GasketGlass Fiber Filled PTFE Cut GasketNAFLON PTFE Cushion GasketRing Joint GasketGRASEAL Vortex GasketNA Vortex GasketNAFLON PTFE Low Creep GasketNAFLON PTFE Cushion GasketNAFLON PTFE Cut GasketNAFLON PFA GasketGRASEAL Vortex GasketNA Vortex GasketGRASEAL Gasket PM, MI-ACLINSIL-TopNAFLON PTFE Low Creep GasketNAFLON PTFE Special Filler Filled Cut GasketGlass Fiber Filled PTFE Cut GasketNAFLON PTFE Cushion GasketGRASEAL Vortex GasketNA Vortex GasketCLINSIL-TopCLINSIL-BrownNAFLON PTFE Cut GasketNAFLON Vortex GasketNAFLON PTFE Low Creep GasketNAFLON PTFE Special Filler Filled Cut GasketGlass Fiber Filled PTFE Cut GasketNAFLON PTFE Cushion GasketNAFLON Vortex GasketNAFLON PTFE Low Creep GasketNAFLON PTFE Cushion GasketNAFLON PTFE Cut Gasket

Gasket Selection

1Fluid 2Temperature（℃）

3Pressure

MPaTOMBO� No. Product name

Remarks

Operating conditions Recommended gasket

5

Gasket Selection

1Fluid

AlkaliCaustic sodaCausticpotassium

Air

Exhaust gas

Combustiblegas

Toxic gas

Hydrogen gas

Ammonia

Oxygen gas

Low-temperature fluids Liquid gas LNG, LN2 LO2, Ethylene

2Temperature（℃）

3Pressure

MPaTOMBO� No. Product name

Remarks

Operating conditions Recommended gasket

9.0 1834R-GR2604.6 1215,1210-A

200 1.5 9007-SC150 1.0 9010-NA-A-7

11 1834R-NA1.8 9007-SC

100 1.8 11201.0 9010-NA-A-5,70.5 9007

600 0.3 1841-Fi-G300 5.0 1834R-GR260 1.0 1120

1.5 9007-LC200 1.5 9007-SC

1.5 9010-NA-A-91.0 9007-G20

150 1.0 9010-NA-A-71.0 1995

100 1.0 1050-EP0.5 9007

700 0.01 1400-ST500 0.01 1400-TH300 0.01 1374200 1.0 1120100 1.0 1995600 18 1850C-G

29 1850C-F450 17 1834R-GR

34 1850C-F350 21 1834R-GR

5.0 1834R-NA39 1850C-F23 1834R-GR

260 9.0 9090-IOR6.0 1834R-NA

200 1.5 9007-LC1.0 9007-G20

150 1.0 9010-NA-A-70.5 9007

100 0.5 9007-LP39 1850C-F2609.0 9090-IOR-OX1.8 9010-NA-A-51001.8 9007-LC20 1834R-GR

-240 11 1839R-200 1.0 1120-LN

GRASEAL Vortex GasketGRASEAL Gasket PM, MI-ANAFLON PTFE Special Filler Filled Cut GasketNAFLON PTFE Cushion GasketNA Vortex GasketNAFLON PTFE Special Filler Filled Cut GasketCLINSIL-TopNAFLON PTFE Cushion GasketNAFLON PTFE Cut GasketHigh-temperature NA Metal Jacketed GasketGRASEAL Vortex GasketCLINSIL-TopNAFLON PTFE Low Creep GasketNAFLON PTFE Special Filler Filled Cut GasketNAFLON PTFE Cushion GasketGlass Fiber Filled PTFE Cut GasketNAFLON PTFE Cushion GasketCLINSIL-BrownRubber Cut gasketNAFLON PTFE Cut GasketSuper Manhole Gasket-STFF Manhole GasketNA Manhole GasketCLINSIL-TopCLINSIL-BrownRing Joint GasketRing Joint GasketGRASEAL Vortex GasketRing Joint GasketGRASEAL Vortex GasketNA Vortex GasketRing Joint GasketGRASEAL Vortex GasketNAFLON Vortex GasketNA Vortex GasketNAFLON PTFE Low Creep GasketGlass Fiber Filled PTFE Cut GasketNAFLON PTFE Cushion GasketNAFLON PTFE Cut GasketNAFLON PFA GasketRing Joint GasketNAFLON Vortex GasketNAFLON PTFE Cushion GasketNAFLON PTFE Low Creep GasketGRASEAL Vortex GasketGRASEAL Vortex Gasket LCLINSIL-Top LN

Used together with high-temperature gasket paste.

Used together with gasket paste.

Suitable for applications where slight leakage is permissible.Suitable for applications where slight leakage is permissible.Suitable for applications where slight leakage is permissible.

6

HIG

H T

EMPE

RA

TUR

E U

SE

SH

EETS

GA

SK

ETS

■High Temperature Use Sheet GasketThis is newly developed non-asbestos gasketing sheet for high temperature

application. Main material of expanded graphite is mixed with aramid fibers,

rubber and chemicals and then processed by calendering machine.

NA Joint Sheets for High Temperature

CLINSILTM

-Top TOMBO� No.1120

■Features : ¡It can be used from –200℃ to 260℃ at 1MPa condition.¡This gasket can be used for 2MPa saturated steam.¡Seal performance and chemical resistance are quite

similar to conventional asbestos joint sheets.¡"m" and "y" value are the same as asbestos joint sheets.¡Maximum outer diameter is 2520 mm and irregular

shapes are available. ¡Not like graphite sheet, surface is not scratched by

normal handling process. Also good in flexibility.¡Thanks to the flexibility of expanded graphite, bolt

re-tightening is possible.¡It will not cause corrosion pitching when it is used for

stainless steel flange.¡100% asbestos-free product.

■Applications : Gaskets for various types of piping flanges, valves,equipment etc.For cryogenic application like LNG, TOMBO No. 1120-LN with specialtreatment is recommended to use.

■Service Range (For details, please refer to thediagram on page 10)¡Temperature : –200℃～ 260℃¡Pressure : Saturated steam, hot water

→See Page 10Water, salt solutions, weak acid and weak alkali solutions.→Max.4.0MPa {30Of/F}Oil at 120℃ or lower.→Max.4.0MPa {30Of/F}Air, exhaust gas, inert gas.

→Max.1.0MPa {10Of/F}

■Applicable standardsTA LUFT/VDI GUIDE LINE 2440 (HELIUM LEAKAGE)

■Availability

■Recommended seating stress of Gasket : Please refer to page 8.

■Chemical resistance : CLINSIL-Top （TOMBO No.1120）

Asbestos joint sheet （TOMBO No.1100）

Tensile strength（N/mm2 ）

After submersion

Before submersion

Hydrochloric Acid （20％－70℃）

Sulfuric Acid （10％－65℃）

Sodium Hydroxide （30％－70℃）

Ammonia Water （30％－RT）

0.0

5.0

10.0

15.0

20.0

25.0

30.0

＊submersion hour : 22hr For other fluids, verification test may be necessary. Please consult us for details.

■Functional performance versus steam Typical test data in steal line

<Condition>Temperature : 215℃Pressure : 2MPaFluid : SteamGasket Thickness : 1.5mmFlange : JIS20K 25A RFFastening Surface Pressure : 29.4MPaVenue : Boiler at Nichias' factory

<Result>776days No leakageTest under implementation as of May in 2008

TOMBO No. 1120

■Fluids not suitable for use with Clinsil-Top.Type Fluid name

Oxidizing acids Nitric acid, concentrated sulphuric acid, hot sulphuric acid, mixed acids, chromic acid,etc.

Oxidizing salts Nitrate, chlorate, hypochlorite, etc.Halogen compounds Bromine, fluorine, iodine, chlorine dioxide, etc.Combustion promoting gas Oxygen (pure oxygen)

！

！Handling instructionsSince gaseous fluids have a higher tendency to leak than water-based and oil-based fluids, please pay attention to and follow the handlinginstructions below.¡Gaskets should be ring-shaped (Type FR) in thickness of 1.5mm or less.¡Apply a small amount of the gasket paste (TOMBO No. 9105, 9106) thinly and evenly to the inner edge and both faces of gasket.¡When gasket is tightened in place, do not tighten more than the tolerable seating stress.

Pay attention to the tendency that seating stress becomes greater than the tolerance in the case of flanges in small diameter.¡Pay attention to the tendency that seating stress at compression failure declines less than the values shown on page11 in the case where gasket

is tightened under elevated temperatures (hot bolting).

Width×Length Thickness0.4 0.5 0.8 1.0 1.5 2.0 3.0

1270×1270 (1S) ○ ○ ○ ○ ○ ○ ○1270×3810 (3S) ○ ○ ○ ○ ○ ○ ○2540×3810 (6S) ― ― ― ○ ○ ○ ○

7

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■JOINT SHEETSCompressed fiber joint sheet is a gasket made of a uniform mixture of fibrous material, filler, rubber and

chemicals which is hot rolled by calendering to obtain smooth sheets. The sheets are processed to the required

shapes and dimensions for applications in equipment, etc., in a wide range of industries.

General-purpose NA Joint Sheets

CLINSILTM

-Brown TOMBO� No.1995

NA Joint Sheets for Stream

CLINSILTM

-Super TOMBO� No.1993

■Features : The main components are inorganic fibers towhich inorganic filler and aramid fibers are added; oil-resistant synthetic rubber is then added as binder to formgreen NA (non-asbestos) joint sheets, which containabsolutely no asbestos.This gasket can be used for stainless steel flange sinceleachable halogens are little.

■Applications : Gaskets for various types of pipingflanges and valves, equipment, etc.

■Service Range (For details, please refer to thediagram on page 10.)¡Temperature : –100℃～ 215℃¡Pressure : Saturated steam, hot water

→See Page 10Water, salt solutions, weak acid and weakalkali solutions. →Max.3.0MPaOil at 100℃ or lower.→Max.3.0MPa}Air, exhaust gas, inert gas.

→Max.1.0MPa

■Applicable standardsJIS F 0602 HJ BAM OXYGEN GAS SERVICE

ASTM F104 F712100-B5E12M5JIS F 7102 HJ

■Availability

TOMBO No. 1993Caution for Steam Sealing more than120℃¡Use ring shape (FR) and 1.5A gasket.¡Minimum recommended compressive stress

for TOMBO No. 1993 is 29.4N/E.¡Use Vortex gaskets, etc. in places where

maintenance is difficult.¡Re-torque immediately before temperature

rise.¡Do not re-torque after temperature rise.¡Avoid piping stress to installed gaskets.Handling instructions in the case wheregasket is for use in gas line.

¡Do not use this gasket for applications whereeven a minimal amount of leakage is notallowable.

！

！

TOMBO No. 1995

Caution for Steam Sealing more than 100℃¡Use ring shape (FR) and 1.5A gasket.¡Minimum recommended compressive stress for TOMBO

No. 1995 is 29.4NE¡TOMBO No. 1993 is recommended when maximum

operating pressure is 0.5MPa and over.¡Use Vortex gaskets, etc. in places where maintenance is

difficult.¡Re-torque immediately before temperature rise.¡Do not re-torque after temperature rise.¡Avoid piping stress to installed gaskets.

！

■Features : Inorganic filler is added to inorganic fibersand aramid fibers; then oil-resistant synthetic rubber isadded as binder to form brown NA (non-asbestos) jointsheets which contain absolutely no asbestos.This gasket can be used for stainless steel flange sinceleachable halogens are little.Large diameter gasket cut from the sheet of 3,810mm x3,810mm (9Ssize) max. in monolithic form is available.

■Applications : Gaskets for various types of pipingflanges and valves, equipment, etc.

■Service Range (For details, please refer to thediagram on page 10.)¡Temperature : –100℃～ 183℃¡Pressure : Saturated steam, hot water

→See Page 10Water, salt solutions, weak acid andweak alkali solutions.→Max.3.0MPaOil at 100℃ or lower.→Max.3.0MPaAir, exhaust gas, inert gas.

→Max.1.0MPa■Applicable standards

API 6FA (FIRESAFE) BAM OXYGEN GAS SERVICEGERMANISCHER LLOYD GL TYPETA LUFT/VDI GUIDE LINE 2440 (HELIUM LEAKAGE)ASTM F104 F712100-B5E12M5JIS F 0602 HJ JIS F 7102 HJ■Availability

Width×Length Thickness0.8 1.0 1.5 2.0 3.0

1270×1270 (1S) ○ ○ ○ ○ ○1270×3810 (3S) ○ ○ ○ ○ ○2540×3810 (6S) ─ ○ ○ ○ ○3810×3810 (9S) ─ ─ ○ ○ ○

Width×Length Thickness0.5 0.8 1.0 1.5 2.0 3.0

1270×1270 (1S) ○ ○ ○ ○ ○ ○1270×3810 (3S) ○ ○ ○ ○ ○ ○

8

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Other Joint Sheets

■Recommended Seating Stress of Gasket

1938 CLINSIL-UF

Aramid fibers, inorganic fibers, inorganic filler andoil-resistant rubber are mixed uniformly and thencompressed and calendered to form NA (non-asbestos) joint sheets with outstanding shearstrength and easy cutting feature.

TOMBO No. Product name Construction and featuresAppearance

1991-NF CLINSIL-NF

NA (non-asbestos) joint sheet for refrigerator.Suitable to use with POE(ester oil) or combinationof R134a / POE.Tensile strength and gas sealing performance isalmost same as our TOMBO No.1901 and totaloxidation from gasket is quite minimum.

Thickness – – – 1.0 1.5 2.0 –

Width×Length 1270×1270 (1S)

Thickness 0.4 0.5 0.8 1.0 – – –

Width×Length 1270×1270 (1S)1270×3810 (3S)

■AvailabilityTOMBO� No.1938 TOMBO� No.1991-NF

Compressed Fiber Joint Sheet Standards and Physical Properties(Test data only)

＊Test sample thickness: 1.5A (1.0A for TOMBO No.1991-NF)

0.81.53.0

Thickness(mm)

Gasket factorm (-)

Minimum designed seating stressy (N/mm2)

Minimum seating stressWater･Oil type Fluids (N/mm2) Gas type Fluids (N/mm2)

3.502.752.00

44.825.511.0

14.714.714.7

34.334.3-

Tensile strengthCompressibilityRecovery

Flexibility

Oil resistance

Steam test

Fuel oil resistance

Density

Ignition loss

Stress relaxation

34.3N/E

N/E 15.7min7～1745 min

No cracks–

30 max40 max

––––

––

––

50 max

28 max

40 max

–

9.8min5～1935 min

No cracks–

30 max40 max

––––

––

–––

–

50 max

–

%%

WarpWeft

Increase in thickness %Decrease in tensile strength %

Increase in thickness %Increase in weight %Compressibility %Recovery %

Increase in thickness %Increase in weight %

Compressibility %Recovery %Decrease in tensile strength %

%

%

N/ J

By a round rod witha diameter of 12times the thickness.

IRM 903 oil150℃× 5h

IRM 903 oil40℃× 48h

ASTM Fuel B(JIS fuel oil B)

R. T.× 5h

5.0Mpa× 1h

850℃× 0.5h

100℃× 22h

JIS R 3453-2001

Class A Class B

Applicable standards

Test Item

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–100 ～ 100JIS F 0602 HJASTM F104 (F712100)

Union jointsFluid: water, hot water, gas

–100 ～ 180JIS F 0602 HJASTM F104 (F712100-M7)

Refrigerator compressors and relatedequipmentFluid: substitute freon, refrigerator oil

Service temperature range

（℃）Applicable standardsApplication

23.5min12±547 min

No cracksNo cracks

––

20 max15 max20 max40 min

––

23 max38 min

–

28 max

40 max

1.7～2.0

27.5970

No cracksNo cracks

211

––––

21

105021

–

25

1.53

TOMBO No. 1120

14.7752

No cracksNo cracks

2433

––––

1817

–––

–

20

1.71

TOMBO No. 1993

24.1765

No cracksNo cracks

323

44664

46

–––

30

28

1.84

TOMBO No. 1995

21.6755

No cracksNo cracks

10

––––

34

–––

–

26

1.80

TOMBO No. 1938

23.56

65

No cracksNo cracks

1-1

166

73

35

–––

–

27

1.59

30.47

66

No cracksNo cracks

2233

897

66

1612

8566

24

27

1.86

TOMBO No. 1991-NFAsbestos joint sheet(TOMBO No.1100)

＊ReferenceTest data

JPI-7S-4-1998

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10

Service Range

120℃

215℃

183℃

0

1.0

2.0

3.0

4.0

5.0

6.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250

A

B

TOMBO�

No.1993 CLINSILTM

-Super

¡Water type fluids

Note: Recommended gasket lifefor steam sealing is as follows:A: 5 ~ 10 yearsB: 1 ~ 2 years

0

1.0

2.0

3.0

4.0

5.0

6.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250

¡Oil type fluids

Note: Do not use for aromatic-based fluids.

0

1.0

2.0

3.0

4.0

5.0

6.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250

¡Gas type fluids

Note: Do not use for toxic gasesor combustion promoting gas(oxygen).

1~2 years

0

1.0

2.0

3.0

4.0

5.0

6.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250

TOMBO�

No.1995 CLINSILTM

-Brown

¡Water type fluids

Note:Recommended gasketlife for steam pipe sealing at100℃ or above is as follows:

0

1.0

2.0

3.0

4.0

5.0

6.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250

¡Oil type fluids

Note: Do not use for aromatic-based fluids.

0

1.0

2.0

3.0

4.0

5.0

6.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250

¡Gas type fluids

Note: Do not use for toxic gasesor combustion promoting gas(oxygen).

120℃

215℃

0

1.0

2.0

3.0

4.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250 280

TOMBO�

No.1120 CLINSILTM

-Top

¡Water type fluids

120℃

200℃

260℃

0

1.0

2.0

3.0

4.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250 280

¡Oil type fluids

260℃

0

1.0

2.0

3.0

4.0

Fluid temperature(℃)

Flu

id p

ress

ure

(M

Pa)

0 50 100 150 200 250 280

C

¡Gas type fluids

＊Please consult us for the service other than the above service range.

＊For steam higher than 100℃, hot water, please refer to cautions in page 7.

＊For steam higher than 120℃, hot water, please refer to cautions in page 7.

Note : Do not use for toxic gases orcombustion promoting gas(oxygen).C : Use ring shape(FR), thickness

less than 1.5mm, with gasketpaste, with adequate fastening.

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■Flange Finish The recommended surface roughness of flange isas follows :¡For liquids 6.3 Ra

¡For gas 3.2 Ra

■Seating Stress The seating stress should be one the maximum value, as

shown below:a. Wm1 according to JIS B 8265.b. Wm2 according to JIS B 8265.c. Minimum seating stress required for sealing

liquids.¡For water, oil : 14.7N/E¡For gas : 34.3N/E

■Preventive measures for permeation leakageof gaseous fluidsThe joint sheet has disadvantage that it has a high

tendency to have permeation leakage in the case ofgaseous fluids since it is not physically dense materialdue to the characteristics of its material component.¡Apply a small amount of gasket paste uniformly

on the surface and inner diameter.¡Apply enough seating stress.(Please refer above.)¡Gaskets should be ring-shaped (FR shape) with a

thickness of 1.5A or less.¡When an air tight test is required, 2-3 hours after

tightening.¡Non-asbestos joint sheet shall not be used for

toxic gas or high vacuum sealing.

■Non-asbestos Joint Sheets for stainless steelflangesTOMBO No.1993, 1995, 1120 are recommended forthis service since leachable halogens are little.Gasket paste (TOMBO No.9120) is not requiredgenerally. However, if paste is used, please consult us.

■Compression failure¡Fastening force

If excessive tightening force is applied to non-asbestos joint sheets, compression failure mayoccur. When tightening joint sheets, refer to thefollowing maximum tolerable seating stress.

Cautions

Bolt tightening sequence

1

7

4

6 2

8

3

5

■Installation Tighten bolts from side to side around the joint in astar like crossing pattern.All bolts should be tightened in four to fiveincrements, according proper bolting patterns.Immediate tightening can cause leaks andcompression damage.

■Gasket ThicknessWe recommend the use of gasket thicknessdepending on the nominal diameter of the flange asfollows.150A (6B) or below: 1.5A200A (8B) and above: 3.0A

Caution¡We recommend a thickness of 1.5At regardless of

the consideration above if TOMBO No.1995 isused for steam or hot water at the temperature ofover 100 .゚

¡We recommend a thickness of 1.5At regardless ofthe consideration above if TOMBO No.1993 isused for steam or hot water at the temperature ofover 120 .゚

■Placing orders¡Sheets

Please specify the thickness, width and length.Example: 1.5t×1270×1270 or 1.5t×1S.

¡Cut gasketsIn the case of flanges for JIS or JPI (ANSI) piping,etc., please specify pressure rating (class),nominal diameter, flange type (RF or FF) andgasket thickness.Example: JIS 10K×50A, RF, 1.5t,

JPI class 150×2B, RF, 1.5t.Please provide a drawing for non-standarddimensions.

Caution¡These joint sheet gaskets contain organic

materials; therefore they are not recommended forcombustion promoting application gas (oxygengas).

¡For further details, please refer to the separatehandling instructions.

ThicknessA

NA joint sheetTOMBO No.

Without pasteN/E

With pasteN/E

1120 0.8 294.2 68.6 1995 1.5 196.1 68.6 1993 3.0 147.1 68.6

Due to low physical strength of NA joint sheets,special precautions should be made to avoiduneven tightening.

¡Combined use of gasket pasteDo not apply solvent-based liquid packing (whichmakes gaskets swell), silicon-based oil or grease(which makes gaskets slippery) on NA joint sheetsas gasket paste, as they may cause compressionfailure at a pressure lower than the above valuesof seating stress.If using gasket paste, TOMBO No. 9105 or 9106 isrecommended.Please consult with us regarding other pastes.

！

Maximum tolerable seating stress

Value inside ( ) is for TOMBO No. 1120

！

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■VORTEXTM

GASKETSVortex gaskets are semi-metallic gaskets. Owing to their special

construction, Vortex gaskets can be used at high temperatures and high

pressures like metal gaskets. Sealability is outstanding and a wide application

range is possible for various types of piping and equipment.

■ConstructionVortex gaskets are made of thin V-shaped metalhoops and non-metallic cushioning filler. These arewound into a spiral shape by welding at the beginningand end of the spiral winding. Vortex gaskets areavailable in four types: basic, with an inner ring, withan outer ring, and with both inner and outer rings.

■Types and TOMBO Numbers

■Applicable standards¡JIS F 0602

Shipbuilding – Non asbestos gaskets to cargo pipingsystem – Application standard.HUC TOMBO No.1834-NAHUD TOMBO No.1834R-NAKUD TOMBO No.1834R-GRFUC TOMBO No.9090-IOR

¡JIS F 7102Shipbuilding – Piping system in machinery space- Application for gaskets and packings.HUC TOMBO No.1834-NAHUD TOMBO No.1834R-NAKUD TOMBO No.1834R-GR

¡JPI-7S-41Spiral wound gaskets for petroleum industry.TOMBO No.1804 SeriesTOMBO No.1804-GR SeriesTOMBO No.9090 Series

■Applicable standards¡ASME B 16.20

Metallic gaskets for pipe flange joint. Spiral woundand jacketed.

¡API 601 (OLD VERSION)Metallic gaskets for raised face pipe flanges andflanged connections.(Double jacketed corrugated and spiral-wound)

¡BS 3381Metallic spiral-wound gaskets for use with flanges toBS 1560, Parts 1 and 2.

¡ISO 7483Dimensions of gaskets for use with flanges to ISO7005.

Type 304 stainless steel 1804-GR 1804-NABasic type Type 316 stainless steel 1806-GR 1806-NA

Other 1808-GR 1808-NAType 304 stainless steel 1804R-GR 1804R-NA

With inner ring Type 316 stainless steel 1806R-GR 1806R-NAOther 1808R-GR 1808R-NA

Type 304 stainless steel 1834-GR 1834-NAWith outer ring Type 316 stainless steel 1836-GR 1836-NA

Other 1838-GR 1838-NAType 304 stainless steel 1834R-GR 1834R-NAType 316 stainless steel 1836R-GR 1836R-NA

Other 1838R-GR 1838R-NA

Shape Hoop material

Filler material

Expandedgraphite tape NA paper PTFE tape

Expanded graphite tape+

Mica paper

With both innerand outer rings

-------- -------- --------9090 1806-GS 1806-GM --------

1808-GS 1808-GM 1808-GH------ -------- --------

9090-IR 1806R-GS 1806R-GM --------1808R-GS 1808R-GM 1808R-GH

------ -------- --------9090-OR 1836-GS 1836-GM

1838-GS 1838-GM 1838-GH------ -------- --------

9090-IOR 1836R-GS 1836R-GM --------1838R-GS 1838R-GM 1838R-GH

Notes: TOMBO Numbers shown in this table indicate normal shaped gaskets with representative fillers for piping. Special shapes, etc., will differ from these. Refer to page 28 for details.

1804-GR series 1804-NA series 9090 series 1806-GS series 1806-GM series 1808-GH series

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■Shape¡Basic type

Vortex gaskets are made of thin metal hoops andnon-metallic cushioning filler. These are woundinto a spiral shape by welding at the beginning andend of the spiral windings. This type is used for Male & Female (M&F) typeflanges and Tongue and Groove (T&G) typeflanges, but is not recommended for the raised faceof ordinary piping flanges.

¡With inner ring typeA metallic inner ring is added to the basic typeVortex gasket.The inner ring functions as reinforcement thatprevents deformation of the gasket duringtightening. These are used for Male & Female(M&F) type flanges and valve bonnet gaskets.

¡With outer ring typeA metallic outer ring is added to the basic typeVortex gasket.The outer ring functions to center the Vortex gasketwhen it is placed in flanges and also to preventdeformation of the gasket during tightening. Thistype is used for raised face (RF) piping flanges.With inner and outer ring type is recommended forthe following cases:¡High-pressure such as class 900 or 63K and

above.¡Large diameter such as 26” and above.¡GRASEAL and NAFLON filler.

¡With inner and outer ring typeAn inner ring is added to the type with outer ring.The inner ring protects spiral wound gaskets frombuckling during tightening.

Cross section of the basic type Vortex gasket

Filler Hoop

Cross section of the Vortex gasket with an inner ring

Filler Hoop Inner ring

Cross section of the Vortex gasket with an outer ring

Filler HoopOuter ring

Cross section of the Vortex gasket with both inner and outer rings

Filler Hoop Inner ringOuter ring

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Fluid Maximum servicetemperature℃

Expanded Graphite Tape Filler Vortex Gaskets

GRASEALTM

Vortex Gasket TOMBO� No. 1804-GR Series

This Vortex gasket uses expanded graphite tape (GRASEAL tape) as thefiller material which provides superb sealability even under severeconditions such as high temperatures, high pressures, cryogenictemperatures, heat cycles, temperature cycles and so on.

■Features1. Sealability, especially gas sealing, is superior to that of NA Vortex gaskets.2. Good sealability under high temperature and pressure since filler materials are

less affected by high temperature.3. Sealability remains outstanding even under severe conditions such as pressure

fluctuations and heat cycles.4. As filler materials is also chemical resistant, gasket with appropriately selected

hoop can be used for corrosive fluids in situations where asbestos cannot be used.5. Outstanding Sealability even at cryogenic temperatures.

■ApplicationsSuitable for use in piping flanges, pressure vessels, heat exchangers, valvebonnets, etc., in various industries, especially as gasket for high-temperature,high-pressure steam, and for LNG, etc. at cryogenic temperatures.

TOMBO No. 1834R-GR■Service Range

NA Paper Filler Vortex Gaskets

NA VortexTM

Gasket TOMBO� No. 1804-NA Series

Instead of the conventional asbestos filler, this type of Vortex gasket uses inorganic fibers andaramid fibers as a non-asbestos paper filler.

■Features1. Asbestos fibers are not used.2. The service range (heat resistance, pressure resistance)

is different from that of the asbestos Vortex gaskets, .but the sealing performance is almost the same.

■ApplicationsSuitable for use in piping flanges, pressure vessels, heatexchangers, valve bonnets, etc.

Please pay attention when flanges are released after temporarysetting of machinery or hydraulic test. Filler material may stick toflanges. Please consult us if gaskets are used like this.

Maximum service pressure

* The values in brackets ( ) are maximum service temperaturesunder a non-oxidizing atmosphere. When using with RF flangesin open air, the maximum service temperature is 450℃.

* Max. service temperature differs depending on the materials ofthe hoop and the inner and outer rings. Refer to page 27. Do notapply gasket paste.

Water type fluids 450(650) Class 2500Oil type fluids 450(800) Class 1500Gas type fluids 450(800) Class 1500Cryogenic –240 20MPatemperature fluids (Minimum service temperature)

Fluid Maximum servicetemperature℃

TOMBO No. 1834-NA■Service Range

Maximum service pressure

Water type fluids 350 Class 1500Oil type fluids 350 Class 600Gas type fluids 350 Class 400

Fluids not suitable for use with GRASEAL

Classification Name of liquid

Oxidizing acid Nitric acid, Concentrated sulfuric acid, Hot sulfuricacid, Chromic acid, Mixed acids, etc.

Oxidized salt Nitrates, Chlorates, Hypochlorites, etc.Halogen compounds Bromine, Fluoride, Iodine, Chlorine dioxide, etc.Combustion promoting gas Oxygen (Pure oxygen)

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PTFE Tape Filler Vortex Gaskets

NAFLONTM

Vortex Gasket TOMBO� No. 9090 Series

This Vortex gasket uses unsintered PTFE tape asthe filler material. The PTFE filler providessuperior chemical resistance and sealability. Bycombining with corrosion resistant metals, it canbe applied for corrosive fluids, pure oxygen gasand vacuum lines.

■Features1. Sealability is superior to that of all other Vortex

gaskets. It can also be used for vacuum lines.2. The highest corrosion resistance among the all Vortex

gaskets. It can be used for almost all fluids by selectingappropriate hoop materials

■ApplicationsSuitable for use in piping flanges, pressure vessels, heatexchangers, valve bonnets, etc. especially for corrosivefluids and oxygen for which other Vortex gaskets cannotbe used, places where a high degree of air tightness isrequired, as well as vacuum lines.The OX type, which has no oil in the PTFE, is available foruse with pure oxygen.

TOMBO No. 9090-IOR

Fluid Maximum servicetemperature℃

■Service RangeMaximum service

pressure

Water type fluids 300 Class 600Oil type fluids 300 Class 600Gas type fluids 300 Class 600

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Notes: Maximum service temperatures differ depending on the materials of thehoop and the inner and outer rings. Refer to page 27.

Fluid

TOMBO No.1806-GS, -GM Series

Maximum servicepressure

Maximum servicetemperature

(℃)Maximum service

pressureMaximum service

temperature(℃)

TOMBO No.1808-GHSeries

Water type fluids 650 Class 2500 800 Class 1500Oil type fluids 650 Class 1500 800 Class 1500Gas type fluids 650 Class 1500 800 Class 600

Composite Filler Vortex Gaskets for High-temperature Applications

VortexTM

Gasket-GS, -GM, -GH TOMBO� No. 1806- GS,-GM, -GH Series

Non-asbestos Vortex gasket for high temperatureservice for which normal GRASEAL Vortex cannotbe used. Combination of mica layers and GRASEALfiller with anti-oxidant prevents oxidation ofGRASEAL at high temperature.We offer a line up of three types GS, GM, and GH,depending on service conditions.

■GS SeriesSuitable for non-oxidizing fluids of 450℃ and above.(Ordinary GRASEAL Vortex gaskets are recommended fortemperatures below 450℃)

When fluids contain oxygen, do not use at temperature of 450℃or higher.

■GM SeriesSuitable for high-temperature conditions over 450℃, andusage conditions where there is decoking.(For temperatures below 450℃, ordinary GRASEALVortex gasket is recommended.)

When the internal fluid is air, do not use at temperatures of 450℃or higher.

■GH SeriesSuitable for high-temperature conditions over 650℃, andusage conditions where there is decoking.(For temperatures below 650℃, Vortex Gaskets-GM isrecommended. For temperatures below 450℃, ordinaryGRASEAL Vortex gasket is recommended.)

When the internal fluid is air, do not use at temperatures of 450℃or higher.

■Service Range

Mica

GRASEAL containing oxidation inhibitor

Mica

GRASEAL containing oxidation inhibitor

Mica

GRASEAL containing oxidation inhibitor

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Fluid Maximum servicetemperature℃

Maximum service pressure

Water type fluids 450 Class 600Oil type fluids 450 Class 600Gas type fluids 450 Class 600Cryogenic –240 11MPatemperature fluids (Min. service temperature)

Fluid Maximum service pressure

Maximum servicetemperature℃

Water type fluids 300 Class 600Oil type fluids 300 Class 600Gas type fluids 300 Class 600Cryogenic –240 11MPatemperature fluids (Min. service temperature)

Expanded Graphite Filler Vortex Gaskets for Low-temperature, Low Seating Stress Service

GRASEALTM

Vortex Gasket L TOMBO� No. 1809 Series

Protruding graphite tape (GRASEAL) is used on thegasket surface to make this gasket suitable forcryogenic applications.

■Features1. Outstanding sealability for cryogenic fluids such as LNG, etc.2. Superb sealability even in low seating stress.

■ApplicationsSuitable for services such as: * Cryogenic lines for LNG, LN2, LO2, LHe, etc.* Locations where adequate seating stress for ordinaryGRASEAL Vortex gasket is not attainable.

■Service RangeTOMBO No. 1839R

Expanded Graphite Filler Vortex Gaskets for use with Aluminum Flanges

GRASEALTM

Vortex Gasket for Aluminum Flanges TOMBO� No. 1809-AL Series

GRASEAL

This GRASEAL Vortex gasket for aluminum flangesuses a combination of aluminum and type 304stainless steel as the hoop material.

■Features1. Suitable for aluminum flanges.2. Outstanding sealability for cryogenic fluids such as

LNG, etc.3. Superb sealability even in low seating stress service.

■ApplicationsSuitable for cryogenic temperature lines such as LNG, LN2,LH2, LHe and aluminum flanges.

■Service RangeTOMBO No. 1839RAL

Aluminum hoop

Stainless steel hoop GRASEAL

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Vortex Gaskets for Heat Exchangers

Heat Exchanger VortexTM

Gasket with Pass Ribs

TOMBO No. 1804EX

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Irregular-shape Spiral Wound Gaskets

Irregular-shape VortexTM

GasketThis type of Vortex gasket includes various shapessuch as the normal ovals, track shapes, diamonds,squares, and so on. (Shapes with long straightlines, small curvature radius, etc., are difficult tomanufacture; therefore, please consult with usbefore ordering.)

■ApplicationsMainly used for boiler manholes, hand holes and valvebonnets, etc.

■How to indicate dimensions

Notes: (1) When ordering gaskets, please indicate the dimensions A, B, C,R1, R2 and R3 shown in the diagram. R3 is not necessary withdiamond shapes where R3 is a straight line.

(2) Dimension A for oval and track shapes: Shall be 40mm or over.Dimension A for diamond and square shapes: Shall be 60mm or over.

(3) Ratio A/B shall be 2/3 or over.

Ａ Ａ

R1 R1

R3R2

R1=ー 2A

Ｂ Ｂ Ｃ

Ｃ

Track type Oval type

Ａ Ａ

Ａ

R1 R1

R2 R3Ｂ

Ｃ Ｃ

Diamond type Square type

Rib type Rib material and dimensions

This type of Vortex gasket has stainless steel tubeor metal jacketed ribs welded inside the Vortex.NA Vortex, GRASEAL Vortex and NAFLON Vortexare available.

■Features1. Ribs can be manufactured in any shape.2. Ribs can be manufactured with either stainless steel

tube or metal jackets. Sealability is the same.

■ApplicationsUsed for general heat exchangers.

■Rib types (for a gasket thickness of 4.5mm)

Stainless steel tube

Metal jacket

Type 321 stainless steel4.8 (tube diameter)×0.5 wall thickness

TOMBO No. 1841.The metal is the same as that of theVortex hoop.10 (width) × 4.7 (thickness)

Unit: A

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Special Construction Spiral Wound Gaskets

Special Construction VortexTM

GasketInner ring rod typeThis type of Vortex gasket has a metal rod insteadof a regular type inner ring.

■ApplicationsRecommended where the regular type inner ring cannotbe installed.

■Rod dimensions and materials

Gasket thickness

Availablematerials

Wound partThickness Maximum width

4.5 3.2 4.0

Wound-metal hoop typeThis type of Vortex gasket has a 3.2A thick windingmetal hoop instead of the outer metal ring.

■ApplicationsRecommended where outer ring is not wide enough forM&F or T&G flanges. Do not use for raised face (RF)flanges as the mechanical strength of wound metal hoopis less than normal outer metal ring.

■Hoop materials and dimensions

Notes: Basically, only rod type Vortex gaskets with a thickness of 4.5mm or morecan be manufactured.

Gasketthickness Available materialsRod

diameter

4.5 3.2 Type 304,316 stainless steel

Type 304 stainlesssteel, Type 316

stainless steel, otherNotes: In principle,only 4.5A thickness hoop material type Vortex gaskets

can be manufactured.

Unit: A

Unit: A

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Design standard■Gasket, Inner and Outer ring thickness ■Available inner diameters

3.2 2.0 2.04.5(standard) 3.2 3.06.4 4.5 4.0

Inner and outer ring thicknessCarbon steel Other than carbon steel

Gasketthickness

3.2 16 6004.5 16 (3000)6.4 1500 (3000)

Available inner diametersMinimum Maximum

Gasketthickness

Unit: A

■Available widths

16 ～ 30 4.0～10 4.5～ 10 – 2.5 –

31 ～ 46 4.0～15 4.5～ 15 – 2.5 4

47 ～ 55 4.0～20 4.5～ 20 – 3 4

56 ～ 70 4.0～22 4.5～ 25 – 3 4

71 ～ 90 4.0～22 4.5～ 30 – 3.5 4

91 ～ 110 4.5～22 5.0～ 35 – 3.5 4

111 ～ 150 4.5～22 5.0～ 35 – 4 4

151 ～ 170 4.5～22 5.0～ 40 – 4 4.5

171 ～ 200 4.5～20 5.0～ 40 – 4 4.5

201 ～ 300 4.5～20 5.0～ 40 – 4.5 4.5

301 ～ 400 4.5～18 5.0～ 40 – 5 5

401 ～ 500 5.0～18 5.5～ 40 – 5.5 5.5

501 ～ 600 5.5～15 6.0～ 35 – 6 6

601 ～ 700 – 6.5～ 35 – 7 7

701 ～ 800 – 7.0～ 35 – 8 8

801 ～ 900 – 7.5～ 35 – 9 9

901 ～ 1000 – 8.0～ 30 – 10 10

1001 ～ 1100 – 8.5～ 30 – 11 11

1101 ～ 1200 – 9.0～ 30 – 11 12

1201 ～ 1300 – 10.0～ 27[25] – 11 13

1301 ～ 1400 – 11.0～ 27[25] – 11 14

1401 ～ 1500 – 12.0～ 27[25] – 11 15

1501 ～ 1600 – (12)～ 27[25] (12)～30 15 16

1601 ～ 1700 – (12)～ 25[22] (12)～30 15 17

1701 ～ 1800 – (12)～ 25[22] (12)～30 15 18

1801 ～ 1900 – (12)～ 25[22] (12)～30 15 19

1901 ～ 2000 – (12)～ 25[22] (12)～30 20 20

2001 ～ 2100 – (12)～ 22[20] (12)～30 20 20

2101 ～ 2200 – (12)～ 20 (12)～30 20 20

2201 ～ 2300 – (12)～ 20 (12)～25 20 20

2301 ～ 2500 – (12)～ 18 (12)～25 20 20

2501 ～ 2800 – – (12)～22 20 20

2801 ～ 3000 – – (12)～20 20 20

Range for gasket inner diameter Inner diameter of inner ringInner diameter of outer ring

Available gasket widthsMinimum width of

outer ringMinimum width of

inner ringGasket thickness3.2

Gasket thickness4.5

Gasket thickness6.4

Unit: A

Unit: A

＊Values in brackets ( ) are for reference.＊Dimensions shown in brackets [ ] are for graphite filler and for a combination of a titanium hoop and PTFE filler.＊Special configuration Vortex gaskets such as TOMBO No.1809 and 1809AL are available only with a thickness of 4.5A.＊Maximum gasket diameter is 1200 mm for TOMBO No. 1809 and 600 mm for TOMBO No. 1809-AL.

Notes: Gaskets with a thickness of 3.2A are mainly used forsmall-diameter valve bonnets and are not used for pipeflanges.

＊Please consult with us in case of dimensions over values inbrackets ( ).

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Other Joint Sheets■Recommended gasket widths (for a gasket thickness of 4.5mm)

Notes:(1) The type without an inner ring can be used if the following conditions are fully satisfied.

Filler material : NA paper.

Pressure rating : Class 600 or below, or 40K or below.

Size : Nominal diameter 24B or below, or 600A or below.

■Flange types and suitable gasket types

16

30

100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400

25

20

15

10

5

0

Recommended width

Recommended minimum widths for NA Vortex gaskets.

Recommended minimum widths for GRASEALand NAFLON Vortex gaskets.

Gas

ket

wid

th (A

)

Gasket inner diameter (A)

Full Face (FF)

Raised Face(RF)

Male & Female(M&F)

Tongue & Groove( T&G)

With inner and outer ring (1) With inner and outer ring (1) With inner ring (1) Basic type

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Notes for Designing■Applicable flanges

(1) Since Vortex gaskets require a comparativelyhigh tightening stress, do not use for low-pressure flanges (JIS 2K, 5K, vacuum lines, etc.).

(2) Only TOMBO No. 1809-AL Series Vortex gasketscan be used for aluminum flanges.

■Necessity of inner ringThe function of the inner ring is to prevent thegasket from buckling or damage, to withstand hightightening stress. When installing a gasket on aflange with no means of restraining support towardthe inside, inner ring types should always be used inthe following cases:(1) With a low friction filler such as GRASEAL and

NAFLON.(2) When the pressure rating of the flange is

class900 (63k) or above.(3) When the nominal diameter of the flange is 650A

(26B) or above.

■Clearance for grooved flanges(1) Tongue & Groove (T&G) and Male & Female

(M&F) flange

(2) Flat to Groove flangeClearance (b) differs depending on the seatingstress of the gasket.Please consult us for designing the clearance.

■Gasket thickness and suitable groovedepth(1) Tongue & Groove (T&G) and Male & Female

(M&F) flange

(2) Flat to Groove flange

■Flange surface finish

Buckling of Vortex gasket

Buckling

Application for Tongue & Groove (T&G) flange

f

a b

Application for Flat to Groove flange

f

a b

＊Please consult us for applications of 6.4t thickness Vortexgaskets to Flat to Groove flange.

Gasket diameterAppropriate clearance

(a) (b)250 or below 0.5 0.5251～630 0.7 0.7631～1600 1.0 1.01601 or above 1.5 1.5

Unit: A

Gasket thickness Suitable groove depth (f)3.2 3.5 or more4.5 5.0 or more6.4 7.0 or more

Unit: A

Gasket thickness Suitable groove depth (f)3.2 2.4 4.5 3.26.4 –

Fluid type Recommended surface finishLiquid type 6.3 RaGas type 3.2 Ra

Unit: A

+0.1-0

+0.1-0

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■Bolt materialsSince Vortex gasket require comparatively hightightening stress, high tension bolt such as SNB 7 orover is recommended for bolt specification.

¡TighteningTo obtain uniform seating stress, apply the tighteningload (torque) in 4 - 5 stages, proceeding diagonally asshown in the diagram below. Gradually increase thestrength of the tightening load until the prescribedseating stress is obtained. After that further tighten byproceeding clockwise 1 - 2 turns.

¡Basic-type VortexBasic-type Vortex gaskets (including irregular-typegaskets) should be carefully handled as theydeform easily with even with slight external force.Even if gaskets are somewhat deformed, they maystill be fitted into the groove on the flange andused, depending on the condition of the gasket. Insuch cases, please consult with us.

■Gasket seating stress(1) For general liquids :

The calculation results Wm1 and Wm2, stipulated inJIS B 8265, etc., shall be calculated using m and y.The largest stress obtained from the calculation shallbe the required seating stress.

(2) For fluids that tend to leak:For gas type fluids, leakage may occur if only seatingstress calculated by JIS B8265,etc. is applied.In addition to Wm1 and Wm2, the seating stress(Wm3) shall also be calculated in accordance with thefollowing σ3 per unit of gasket contact surface. Thelargest stress from the calculation shall be used as therequired seating stress.

■Seating stress of gasket

Cautions¡Storage

1. Store gaskets indoors in a cool, dark place in theoriginal wrapping.

2. Do not stand gaskets upright or hang them.3. Do not bend, twist, push or press gaskets.

¡Installation1. Before installing a gasket, first clean the surface of the

flange and check the surface is free of foreign matters,scratches, etc.

2. Do not handle gaskets roughly. Since large diametergasket is easily damaged (dropping off of windings), itshould be handled very carefully by several persons.

3. Place gaskets carefully in correct position.4. In principle, there is no need to apply gasket paste.

But, if considered necessary NAFLON paste (TOMBONo. 9400) is recommended for temperature conditionsof 300℃ or lower,

5. Do not re-use gaskets.

Bolt tightening sequence

1

7

4

6 2

8

3

5

Gasket typeGasket factor

m(1)Minimum design seating stress

y(2)N/E

Minimum seating stress (for gas sealing)(3)

σ3

N/E

TOMBO No.1804-GR SeriesTOMBO No.1804-NA SeriesTOMBO No.9090 SeriesTOMBO No. 1806 -GS -GM -GH

TOMBO No.1809 Series

39.2 78.468.939.2 78.4

29.4 (Class 150)58.8 39.2 (Class 300)

49.0 (Class 600)

3.00

notes:(1),(2) Specified by JIS B 2205 (1991), JIS B (1995) and JPI-7S-81-96.(3) Specified by test results from NICHIAS Corporation

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■Compression recovery curve

Gasket ; TOMBO No.1834-NASize 3B ; ø101 x ø117 x ø148 x 4.5t 8B ; ø236 x ø260 x ø307 x 4.5t

79

59

39

20

04.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2

Co

mp

ress

ion

load

(N

/E)

Gasket thickness (A)

●TOMBO� No.1834-NA (4.5t) compression recovery

Class 300 x 3B

Class 300 x 8B

137

98

118

79

59

39

20

04.44.6 4.2 4.0 3.8 3.6 3.4 3.2

Co

mp

ress

ion

load

(N

/E)

Gasket thickness (A)

●TOMBO� No.1834R-GR(4.5t)compression recovery

Class 600 x 8B

Class 300 x 8B

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137

98

118

79

59

39

20

04.6 4.4 4.2 4.0 3.8 3.6 3.4

Co

mp

ress

ion

load

(N

/E)

Gasket thickness (A)

Gasket ; TOMBO No.1839RSize 8B ;ø220 x ø236 x ø260 x ø307 x 4.5t (Class 300) ø209 x ø230 x ø260 x ø320 x 4.5t (Class 600)

●TOMBO� No.1839R (4.5t) compression recovery

Class 600 x 8B

Class 300 x 8B

137

98

118

79

59

39

20

04.4 4.2 4.0 3.8 3.6 3.4 3.2

Co

mp

ress

ion

load

(N

/E)

Gasket thickness (A)

Size 8B ;ø220 x ø236 x ø260 x ø307(Class 300)Size 8B ;ø209 x ø230 x ø260 x ø320(Class 600)

●TOMBO� No.1839R-AL(4.5t)compression recovery

Class 600 x 8B

Class 300 x 8B

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Selection Guide¡Water type fluids

Design Points¡Oil type fluids

Class2500

Class1500

Class900

Class600

Class400

Class300

Class150

50

20

10

5

2

1

0.5

0.2

0.1

0-200 -100 0 100 200 300 400 500 600 700 900800 1000

150

2500

1500

900

600

400

300

GR1

GR1

GR1

NA2

PTFE3NA2

GS1

GS1

Class2500

Class1500

Class900

Class600

Class400

Class300

Class150

50

20

10

5

2

1

0.5

0.2

0.1

0-200 -100 0 100 200 300 400 500 600 700 900800 1000

150

2500

1500

900

600

400

300

GR1

GR1

GR1

NA2

PTFE3

GS1

GS1

GM2

GH1

GM2NA2

Class2500

Class1500

Class900

Class600

Class400

Class300

Class150

50

20

10

5

2

1

0.5

0.2

0.1

0-200 -100 0 100 200 300 400 500 600 700 900800 1000

150

2500

1500

900

600

400

300

GR1

GS1

GR1

GR1

GR1PTFE2

GR1

GS1

GM2

GH1

GH3

PTFE2

NA3

GM2

NA2

Class2500

Class1500

Class900

Class600

Class400

Class300

Class150

50

20

10

5

2

1

0.5

0.2

0.1

0-200 -100 0 100 200 300 400 500 600 700 900800 1000

150

2500

1500

900

600

400

300

PTFE1

PTFE1

GR1

GR1

GR1

GR2

GR2

Pre

ssu

re (

MP

a)

Temperature (℃)

Pre

ssu

re (

MP

a)

Temperature (℃)

Pre

ssu

re (

MP

a)

Temperature (℃)

Pre

ssu

re (

MP

a)

Temperature (℃)

Selection Guide¡Gas type fluids

Design Points¡Corrosive fluids

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Design Points■Selection chart

1. The following codes indicate the gasket types:

2. When several recommended gaskets areindicated by the line connecting temperature andpressure, the priority is indicated by numericalorder.

3. This table is just a general selection guide.

■Service temperature for hoop material

■Service temperature for inner and outer rings

■Applicable fluidsPay special attention when selecting Vortex gasketsfor the following fluids.1. Combustion promoting gas (oxygen):

Use only NAFLON Vortex OX type (TOMBO No.9090-OX etc.) which contains no oil in its fillermaterial. Other types of Vortex gasket should notbe used since their fillers contain combustiblematerials.

2. Strong acid fluids:Do not use GRASEAL Vortex gaskets for strongoxidizing acids such as nitric acid and nitrates.For details, refer to fluids that cannot be usedwith GRASEAL on page 41.

3. High temperature fluids:Select materials for the hoop and inner ring thatcan sufficiently withstand usage conditions.Do not use Vortex Gasket-GS at temperatures of450℃ or above if fluids contain oxygen. If theoxidative power of the fluids is weak, VortexGasket-GM, -GH can be used.

4. Corrosive fluids:Select hoop and inner ring materials that arefully capable of withstanding the serviceconditions.

5. Acidic fluids:Do not use NA Vortex gaskets.

Code Product TOMBO No.GR GRASEAL Vortex 1804-GR SeriesNA NA Vortex 1804-NA SeriesPTFE NAFLON Vortex 9090 SeriesGS GRASEAL Vortex-GS 1806-GS SeriesGM GRASEAL Vortex-GM 1806-GM SeriesGH GRASEAL Vortex-GH 1808-GH Series

Type Materialcode Old material code Recommended service

temperature(℃)

304 Stainless Steel E 304 500 and below304L Stainless Steel L 304L 500 and below316 Stainless Steel G 316 600 and below316L Stainless Steel H 316L 600 and below321 Stainless Steel J 321 750 and below347 Stainless Steel K 347 750 and belowInconel 600 Y IN 800 and belowMonel M M 750 and belowTitanium T TI 500 and below

Type Materialcode

(Remarks) Oldmaterial code

Recommended servicetemperature(℃)

Carbon steel S SS –29 ～ 425304 Stainless Steel E 304 600 and below316 Stainless Steel G 316 600 and below＊The temperatures are of inner and outer rings, not of fluids.

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For orderingPlease specify the following items when ordering Vortex gaskets:1. Type (basic, with inner ring, with outer ring, with

inner and outer rings)2. Special construction (with rib, metal rod, winding

metal hoop, etc.)3. Materials (filler, hoop, inner ring, outer ring)

■Indications

4. Dimensions(1) Standard size: Applicable standards such as JIS,

JPI, ASME, etc., nominal pressure/ class,nominal diameter.

(2) Non-standard size: service pressure, dimensions(inner diameter of inner ring, gasket innerdiameter, gasket outer diameter, outer diameterof outer ring, thickness).

5. Special treatment (OX), Special specifications

Type Materialcode Old material code

Carbon steel S SS304 Stainless Steel E 304304L Stainless Steel L 304L309S+Cb Stainless Steel W 309S+CB316 Stainless Steel G 316

Type Materialcode

Old materialcode

316L Stainless Steel H 316L316ELC Stainless Steel X 316ELC321 Stainless Steel J 321347 Stainless Steel K 347410 Stainless Steel R 410

Type Materialcode

Old materialcode

430 Stainless steel U 430Inconel 600 Y INMonel M MTitanium T TIOthers Z -

■Hoop, inner ring, outer ring material codes

[GRASEALTM VortexTM, NA VortexTM, Others]18□□□□□─□□─□□□─□

Yes

No

3

0

YesNo

EX

None

Yes See table belowNo

YesO

O

See table belowNo

Yes

No

R

None

Outer ring ●

304 Stainless steel316 Stainless steelOthers

4

68

Hoop material(1) ●

Rib ●

Inner ring ●

● Special specifications

● Outer ring/Material

● Inner ring/Material

● Hoop material (See table below)

GRNAGSGMGH

● Filler materialGraseal NA Paper GS(2) GM(2) GH(2)

Note:(2) See page 16

When special specification is agreed with end user, this code will be added

Note:(1) Even if hoop material is either 304 or 316 stainless steel, code will be "8" when inner or outer ring material is "Others".

＊In the case of "others" please indicate the specific material

＊If any of the hoops, inner rings and outer rings contain any "other" material, the material codes of hoops, innerrings and outer rings must all be prefixed by "Z" and the specific material name should be indicated.

＊Some of the hoop and ring materials shown in this table may not be available as ready stock material. For details,please consult us.

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TOMBO No. Type Filler Hoop Inner ring Outer ringMaterials Old

TOMBO No.

1806-GR-GOO Basic Expanded graphite 316 Stainless Steel None None 1806-GR1834-NA-EOS With outer ring NA paper 304 Stainless Steel None Carbon steel 1834-NA-SS9090-IOR-TTG With inner and outer rings PTFE Titanium Titanium 316 Stainless Steel 9090-IOR-TI-TI-316

■Examples of numbering

[GRASEALTM VortexTM L]

18□9□□□─□□□─□

Yes

No

3

0

Stainless steelAluminum

None

AL

YesO

See table on previous page

No

Only required when so decided through agreement with the user.

Yes See table on previous pageONo

Yes

No

R

None

Outer ring ●

Application (flange material) ●

Inner ring ●

● Special specifications

● Outer ring/Material

● Inner ring/Material

● Hoop material (See table on previous page)

[NAFLONTM VortexTM]9090─□□□□□─□□□□□─□

Basic type

With inner ring

None

IRWith outer ring ORWith inner and outer rings IOR

Yes See table on previous pageNo

Only required when so decided through agreement with the user.

Yes See table on previous page

0

0No

Inner ring and Outer ring ● ● Special specifications

● Outer ring/Material.

Standard product NoneOXFor oxygen

● Special processing

● Inner ring/Material

● Hoop material (See table on previous page)

Yes

No

EX

None

Ribs ●

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Cross section

Metal gaskets are suitable for high pressure andhigh temperature duties instead of soft gasket.Metal gaskets can be produced in any suitablematerials such as soft iron, stainless steel, brass,aluminum, titanium, special alloy, etc.Plain and serrated metal gaskets can be used withflat surface flanges, but other metal gasketsshould be installed to specified flanges.

■Applications : Pipe flanges, valves, pressure vessels,heat exchangers, etc.

Metal Solid Gaskets

Plain Metal Gasket TOMBO� No.1850P

■Features : Flat metal gaskets are either cut or machinedfrom flat plates, round rods, forging metals, etc. A higherseating stress is required than with other types ofgaskets. In order to improve sealability, a V-groove ornubbin may be machined on the flange.

TOMBO No.1850P-E

Cross section

Metal Solid Gaskets

Serrated Metal Gasket TOMBO� No.1890

■Features : Serrated Metal Gaskets with V-grooves aroundflat type metal gaskets to form a serrated cross section asshown in the diagram.Inner and/or outer ring types also available.This gasket is used for high-pressure pipe flanges, vesselsand valves.Expanded graphite sheets can also be adhered to bothsurfaces upon request.

TOMBO No.1890-E

＊For Grooved Metal Gasket with covering layers, please refer to technicaldata available separately.

■Applications : Pipe flanges, valves,pressure vessels, heat exchangers, etc.

■Applications : Pipe flanges, valves,pressure vessels, heat exchangers, etc.

■METAL GASKETS

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Metal Solid Gaskets

Octagonal Ring Joint Gasket TOMBO� No.1850C

■Features : These gaskets are processed to solid ringjoints with an octagonal cross section.Used for high-pressure pipe flanges, vessels and valves.

■Standard dimensions : Please refer to the table of dimensions at the end.

■Applicable standardsJPI-7S-23ASME B16.20API Spec 6A

TOMBO No.1850C-L

TOMBO No.1850V-G

Metal Solid Gaskets

Oval Ring Joint Gasket TOMBO� No.1850V

Cross section

■Features : These gaskets are processed to solid ringjoints with an oval cross section. Like the octagonal type,this type is used for high-pressure pipe flanges, vesselsand valves. The re-use of ring joint gasket is notrecommended.

■Standard dimensions : Please refer to the table of dimensions at the end.

■Applicable standardsJPI-7S-23ASME B16.20

Cross section

■Applications : Pipe flanges, valves,pressure vessels, heat exchangers, etc.

■Applications : Pipe flanges, valves,pressure vessels, heat exchangers, etc.

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■Metal material types, material codes, hardness and maximum service temperature

TOMBO No. Product name Cross section Features

1850-RX

1850-BX

1850-D

1850-L

1850-O

1850

1850

■Other Metal Solid Gaskets

RX ringgasket

This ring joint gasket is suited for flanges in accordance with APIspec 6A, model 6B.

This ring joint gasket is suited only for flanges in accordance withAPI spec 6A, model 6BX.

This delta gasket is designed to be self energized by the internalsystem pressure.

The sealing action is based on line contact sealing. Dimensions inaccordance with DIN 2696

A solid metal o-ring.

A self sealing type metal gasket with a cross section as shown.

This bridgeman gasket is a pressure-activated gasket. Use for seal ring.

BX ringgasket

Delta gasket

Lens typegasket

MetalO-ring

Doble corngasket

Bridgemangasket

Gasket materials(1) Main composition(2) RemarksMaximum service

temperature(℃)

Materialcode

Old materialcode

Maximum hardness(3)

Soft iron - D D 90 - 538 C≦0.05%Carbon steel - S(4) SS 120 - 5385Cr - 0.5Mo steel 5Cr-0.5Mo F F5 130 - 649 ASTM A182 F513Cr steel 13Cr R 410 170 - 704Type 304 stainless steel 18Cr-8Ni E 304 160 - 816Type 304L stainless steel 18Cr-8Ni, LC L 304L 150 - 816Type 316 stainless steel 16Cr-12Ni-2Mo G 316 160 - 816Type 316L stainless steel 16Cr-12Ni-2Mo, LC H 316L 150 - 816Type 321 stainless steel 18Cr-10Ni-Ti J 321 160 - 816Type 347 stainless steel 18Cr-10Ni-Nb K 347 160 - 816Aluminum - A Al - 40 300Copper - C Cu - 80 400Monel - M M 130 - 800Nickel - N Ni 120 - 760Titanium - T Ti 140 - 800

Notes: (1) Materials should be selected with regard to operating temperature and chemical compatibility. Other metal materials are availableupon request.

(2) The alloy ingredients, etc., are indicated.

(3) Hardness of materials to be used for TOMBO No. 1850-P and 1890 may differ from this table. For details, please consult us.

(4) In the case of rolled steel plain metal gaskets, SS is employed.

HB HV

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Blinds and Spacers, and Spectacle BlindsThese blinds and spacers are used to shut offpiping and to cut off pressure during sealing testsand pressure tests. Solid spectacle blinds andbuilt-in ring joint gaskets are also available. Pleaseindicate the material, dimensions and so on.

■Types and shapes

■Indications

18□0□─□

Serrated type

Other

9

5

Octagonal type COval typeRX typeBX type Delta typeLens typePlain typeSerrated typeOther

VRXBXDLP

NoneNone

Shape ●

Shape ●

● Material code

Type

Top view(RF Type)

Side view(RF Type)

Side view(RTJ Type)

Blinds Spacers Spectacle blinds

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Hollow Metal Rings

Metal O-Seal TOMBO� No. 9200

Stainless steel or Inconel tubes are formed into an O-ringshape, the ends are welded together, and then surfaces arefinished ultra-smooth.PTFE coating or silver plating is used on the surfaces forsealing gases, vacuum and highly volatile liquids.Highly reliable sealing performance is provided over a widerange from high temperatures to cryogenic temperatures, andfrom high pressures to vacuum.This gasket features a compact design that requires acomparatively low seating stress and requires little space.

■ApplicationsValve bonnets, high-pressure vessel flanges, equipmentjoints, pipe flanges, plastic processing machinery, rubberextruders, hydraulic equipment, pneumatic equipment,vacuum vessels, nuclear power containers, aircraftengines, rocket engines and automobile engines.

■TypeS

■Materials and service temperature

■Service rangeHigh-pressure water Up to 400MPa High pressure gas Up to 300MPa Vacuum Up to 10-4Pa

TOMBO No.

9200P

9200V

Standard type MetalO-Seal

Vent hole type MetalO-Seal

A standard type Metal O-Seal can be applied fromvacuum to about7.0MPa.

Two or more holes are provided on the inside (for internalpressure) or outside (for external pressure) of the ring so thatthe fluid will enter the ring and increase self-sealing performance.Suitable for high-pressure sealing for 7.0MPa and over.

Product name Shape Features

Tube material

Surfacetreatment

Type 321 stainless steel J 321 –250 ～ 500(1)

Inconel 600 Y In –250 ～ 700(1)

PTFE coating TF TFE –250 ～ 250Silver plating AG Ag –(2)

PTFE coating or silver plating is applied for gas sealing,vacuums and highly volatile liquids.

Surface treatment thickness is 0.03A～0.05A.

Material Old code Service temperature range℃Code Reference

Notes: (1) The maximum service temperature is 250℃ with PTFE coating.

(2) The service temperature range of silver plating is the same as type without silver plating.

■Indications

9200□─□□□

PStandard typeVent hole type V

Type 321 stainless steelInconel 600

JY

Shape ● ● Surface treatment material

● Tube material

NoneAGTF

NoneSilver platingNAFLON coating

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■Standard dimensions

6.3S

W

H

A

I D

R

Internal pressure sealing type External pressure sealing type

H6.3S

WR

A

O D

Tube cross section diameter Wall thickness(3) Outside diameter (A) Compression load(4)

(A) (A) Recommended range Available dimensions N/A0.8 0.15* 6(5)～25 6(5)～30 69

1.6 0.25 – 10～200 1180.36* 15～50 11～200 284

2.4 0.25 – 40～500 590.46* 40～200 20～500 2350.25 – 60～1500(6) 49

3.2 0.35 – 60～1500(6) 880.50* 65～700 50～1500(6) 177

4.8 0.50(7) – 150～1500(6) 690.80* 500～1200(6) 150～1500(6) 333

6.4 0.80* 1000～1500(6) 250～1500(6)(8) 177Notes: (3) Standard wall thickness is indicated with asterisks *. Apply the standard wall thickness for gases.

(4) Indicates the load required to obtain proper seating stress. To obtain the actual seating stress, add the end force to becalculated to the above.

(5) The minimum outside diameter for the vent hole type is 10A.

(6) The maximum outside diameter for PTFE coating is 1300A; for silver plating, the maximum outside diameter is 1100A.

(7) A tube diameter of 4.8A with a wall thickness of 0.50A is only available with type 321 stainless steel.

(8) Please consult with us if gasket diameter is larger than 1500A.

■Standard groove dimensions

Tube cross section diameter Groove outside diameter Groove inside diameter Groove width (W)(10)

Groove depth(H)(10) Groove corner(R)(O.D.) for internal pressure sealing (I.D.) for external pressure sealing(10)(11) Maximum

Notes: ( 9) The groove surface finish is 0.8a (3.2S) for gas and vacuum sealing, and 1.6a (6.3S) for all other cases.

(10) The groove dimensions shall be revised as follows when PTFE coating or silver plating are applied:

Internal pressure sealing: 0.1A shall be added to the groove outside diameter (O.D.), groove width (W) and groove depth (H).

External pressure sealing: 0.1A shall be subtracted from the groove inside diameter (I.D.), and 0.1A shall be added tothe groove width (W) and groove depth (H).

(11) A indicates the gasket outside diameter.

Recommended Minimum

0.8

1.6

2.4

3.2

4.8

6.4

1.2

2.4

3.6

4.8

7.2

9.6

1.1

2.0

2.9

3.7

5.6

7.5

0.2

0.3

0.5

0.8

0.8

0.8

0.60±0.05

1.15±0.05

1.75±0.05

2.55±0.05

3.75±0.05

5.00±0.05

A+0.35+0.25 (A-1.6)-0.25

-0.35

(A-3.2)-0.30-0.40

(A-4.8)-0.30-0.40

(A-6.4)-0.35-0.50

(A-9.6)-0.35-0.50

(A-12.8)-0.40-0.55

A+0.40+0.30

A+0.40+0.30

A+0.50+0.35

A+0.50+0.35

A+0.55+0.40

Unit: A

Corrugated Metal Gaskets Bonded with Expanded Graphite

CMGCTM

Gasket TOMBO� No.1880-GR

Expanded graphite sheet (GRASEAL sheet) is adheredon both sides of concentric corrugated steel plate (Type316L stainless steel).

■Features¡Excellent sealing performance that remains nearly the same

under both low and high temperatures (up to 400℃)¡Can be used for almost all fluids, with the exception of strong

oxidizing acid.¡This type of gasket is used widely by major foreignl oil

companies.

■Applications¡Gasket for piping flange used with fluids such as petroleum, etc.¡Alternative to conventional asbestos joint sheets

■Standard dimensions¡ASME (JPI) specifications

Class 150 1/2B to 24B＊Please consult with us if the required sizes are outside of the

above range.¡Nominal thickness : 1.6mm

■Service range¡Service temperature : –240℃ to 400℃¡Maximum service pressure : 5.2MPa

■Recommended parameters for fastening¡Gasket factor "m" : 2.0 (-)¡Minimum design seating stress "y" : 26.0 (N/mm2) ¡Minimum seating stress for gas sealingσ3(gas) : *39.2 (N/mm2)＊Specified by test results from NICHIAS Corporation

■Structure¡Sheets of expanded graphite are pressure-bonded

onto both sides of a corrugated Type SUS316Lstainless steel.

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Fluids not suitable for use with GRASEAL

Classification Name of liquid

Oxidizing acid Nitric acid, Concentrated sulfuric acid, Hot sulfuricacid, Chromic acid, Mixed acids, etc.

Oxidized salt Nitrates, Chlorates, Hypochlorites, etc.Halogen compounds Bromine, Fluoride, Iodine, Chlorine dioxide, etc.Combustion promoting gas Oxygen (Pure oxygen)

Nominal thickness 1.6mm

Expanded graphite sheet

Type SUS316L stainless steel plate

Expanded graphite sheet

Type SUS316 stainlesssteel plate

Sectional pattern diagram

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A highly heat resistant core is completely covered with a thin

metal jacket.

Double jacket type as per diagram below is standard, but

other jacketing methods are also available.

These gaskets are used for heat exchangers, pressure vessels,

tanks, equipment, valves, high-temperature joint flanges, and

so on.

■Types

■Metal types and available dimensions

1841

1841-Fi

1861

1861-Fi

3.0

3.0

3.0

3.0

Non-asbestos millboard

Ceramic fiber felt

Non-asbestos millboard

Ceramic fiber felt

NA Metal Jacketed Gasket

NA Metal Jacketed Gasket forHigh-temperature applications

NA Corrugated Metal JacketedGasket

NA Corrugated Metal Jacketed Gasketfor High-temperature applications

530

1300

530

1300

Maximum servicepressure

MPa

Maximum servicetemperature(2)

℃

Standardthickness

ACore materialProduct name Cross section (1)TOMBO No.

6.0

Notes: (1) Other types of gaskets with different cross section are also available upon request.

(2) Indicates the heat resistance of the core. The values may become lower, depending on the jacket metal material.

18□1─□□─□─□□

4FlatCorrugated 6

NA mill boardCeramic fiber felt

NoneFi

● Surface material

● Core material

● Jacket metal material code

NoneGR

NoneGraseal

Shape ●

Old Maximum service temperature Maximum dimensions (4)Metal type (3) Material code

material code ℃ A

Carbon steel S SS 535 1480Type 304 stainless steel E 304 800 1180Type 316 stainless steel G 316 800 1180Type 310S stainless steel V 310S 1150 1180Aluminum A Al 400 980Copper C Cu 400 1180Monel M M 800 890

Notes: (3) Other metal materials are also available upon request.

(4) Indicates the maximum diameter that can be fabricated in one piece without welding. For larger sizes, welded types are also available.

■Applicable standardsASME B16.20 Jacketed Gaskets

■METAL JACKETED GASKETS

Cautions(1) The use of expanded graphite tape (TOMBO No. 1220 or TOMBO No. 1221) on the sealing surface is

recommended for more reliable sealing performance at temperatures of 400℃ and below. High-temperature gasket paste (Never Seize® nickel special grade) is recommended at temperatures higher than400℃.

(2) Metal Jacket Gaskets are not recommended for standard pipe flanges because it is difficult to obtainenough seating stress. However, if used even so, gaskets with hangers are recommended for centering.

■Indications

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Metal Jacketed Gaskets with GRASEALTM

TapeExpanded graphite tape is adhered to the surfaceof gaskets.When ordering, please add the code of "GR" to theend of products number as an indication ofsurface material.

Heat Exchanger Gasket

We manufacture gaskets for heat exchangers invarious shapes. Please specify gasket shapes anddimensions based on the drawings and codesshown on the next page.The folded face of the gasket should touch thebottom of the groove on the flange.If the gasket is installed upside-down, the gasketmay not fit with the partition or the sealingperformance of the gasket may decrease.

■Standards for designing dimensionsFor flat gaskets (TOMBO No. 1841, etc.)1. The rib width (W) must be 7A or over.2. The corner radius (R) must be 8A or over.

For corrugated type gaskets (TOMBO No. 1861, etc.)1. The gasket width (N) must be 15A or over.2. The rib width (W) must be 7A or over. (Ribs cannot be

provided with corrugation.)3. The corner radius (R) must be 8A or over.

Section A-A'

A

A'

Welded construction

Filler material

Metal jacket

In some cases, gasket may be supplied with welded passribs. (Please refer sketch below.)Welded pass rib does not affect sealing performance.

39

ME

TA

L JAC

KE

TE

DG

AS

KE

TS

Side A

[HE1]

[HE26]

[HE21]

[HE16]

[HE11]

[HE6]

[HE5]

[HE25]

[HE20]

[HE15]

[HE10]

[HE4]

[HE24]

[HE19]

[HE14]

[HE9]

[HE3]

[HE28]

[HE23]

[HE18]

[HE13]

[HE8]

[HE2]

[HE27]

[HE22]

[HE17]

[HE12]

[HE7]

Ｒ Ｒ P P P

PP

P

PP

PP

PP

PP

PP

PP

PP

PP

P

PP

P

PP

PP P P

P P PP

P P

PP

P1

P1

P1

P1

P1

P1

P1

P1

P1

P1

P1

P1

P1

P1P1

P P

PPP P

PP

P1

P1

P1

P1

P1

P1

P1

P

Ｒ

Ｒ

Ｒ Ｒ

Ｒ

Ｒ

Ｒ

Ｒ Ｒ

Ｒ Ｒ Ｒ

Ｒ Ｒ

Ｒ Ｒ Ｒ

Ｒ

Ｒ

Ｒ Ｒ Ｒ Ｒ

Ｒ

Ｒ

Ｒ Ｒ

Ｒ

Ｒ

Ｒ

Ｒ Ｒ Ｒ

Ｒ Ｒ Ｒ Ｒ Ｒ Ｒ

Ｒ

Ｒ Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ Ｒ

Ｒ Ｒ

Ｒ

Ｒ

Ｒ Ｒ

Ｒ Ｒ Ｒ

Ｒ Ｒ

Ｒ Ｒ Ｒ

Ｒ Ｒ

Ｒ

Ｒ

Ｒ Ｒ

Ｒ Ｒ Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ Ｒ

Ｒ Ｒ

Ｒ Ｒ

Ｒ Ｒ

Ｒ

Ｒ

Ｒ Ｒ Ｒ Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｒ

Ｗ Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ Ｗ

Ｗ

Ｒ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ

Ｗ Ｗ

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

O.D.I.D.

t

Heat Exchanger Gasket Standard Shape CodesPlease indicate the shape code and dimensions when ordering.This shape is top view from Side A of right diagram.

■Heat Exchanger Gasket Standard Shape Codes

40

GR

AS

EA

L G

AS

KE

TS

■GRASEALTM

GASKETSExpanded graphite (GRASEAL) is a material processed from pure natural graphite by

chemical treatment and heat treatment at more than 1000℃. This material provides

outstanding heat and chemical resistance, and is excellent for gaskets with high

flexibility and low creep.

Expanded Graphite Gaskets

GRASEALTM

Gasket TOMBO� No.1200/1210/1215

GRASEAL gaskets are cut from GRASEAL sheetsor GRASEAL sheets with metal reinforcement.There are four types in accordance with theapplication.

¡TOMBO No. 1200 GRASEAL GasketCut gasket from expanded graphite sheet (GRASEALsheets) to be used for pipe flanges and valve bonnets,etc. This type is only recommended for small diametergaskets due to its low mechanical strength.

¡TOMBO No. 1210-A GRASEAL Gasket MI-AType 316 stainless steel sheet (0.1 mm thick) with hooksis sandwiched with GRASEAL sheets and then cut intospecific sizes. Mechanical strength is high. As hookheight is low, less damege (such as scrathing etc) toflanges.

¡TOMBO No. 1215 GRASEAL Gasket PMGRASEAL sheets are adhered to both sides of type 304stainless steel sheet of 0.2 A thick. High in mechanicalstrength and easy to handle. As it can also be cut intocomplicated shapes, this type of gasket is widely usedin various industries.

¡TOMBO No. 1215-A Grsaseal gasket PM-AThe stainless steel sheet use in TOMBO No. 1215 hasbeen changed to SUS316 steel (50 micron).

■ApplicationsFor piping flanges, heat exchangers, valve bonnets, etc.,in various industries and for special shape flanges forliquid level gauges.

■Applicable standards¡JPI-7S-79 Expanded Graphite Sheet Gaskets for

Petroleum industry¡JIS F 7102 (TOMBO No. 1215 only)

■Standard size

TOMBO No. 1200

Cautions1. Since TOMBO No.1200 gaskets are fragile, they

are not recommended for narrow width gasketsor large-diameter gaskets. They are onlyrecommended for nominal size of 4 inches orless.

2. The surfaces of GRASEAL Gaskets are easilydamaged, which can result in leakage;therefore, handle with care.

3. Due to its nature, a very small amount ofleakage is inevitable. When very high level ofgas sealing is required, use TOMBO No.1215-T,1215-AT which feature non-permeationtreatment. (maximum service temp. 260℃)

4. In general, GRASEAL Gaskets cannot be usedwith the fluids listed in the table on page 41.

5. When handling TOMBO No.1210-A/ 1215/ 1215-A gaskets, pay attention not to scratchyour fingers on the metal reinforcement.

■Features1. Sealability remains almost same throughout a range of

cryogenic to high temperature (400℃).2. Excellent chemical resistance to almost all liquids other

than strong oxidizing acids, etc.3. Since cold flow and creep property are minor, it is not

affected by over-tightening of gasket.

Type Nominal thickness Maximum outerdiameter (O.D.)

TOMBO No.1200 0.4(0.38) 0.8(0.76) 1.6(1.52) – 3.2(3.04) ø600TOMBO No.1210-A – – 1.5(1.50) 2.0(2.00) 3.0(3.00) ø1480TOMBO No.1215 – 0.8(0.86) 1.6(1.62) – 3.2(3.14) ø580

TOMBO No.1215-A – 0.8(0.81) – – – ø980– – 1.6(1.57) – 3.0(3.00) ø1480

Unit: A(values in brackets are actual thickness)

41

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Gasket cross section

Maximum service pressure MPa 3.0 5.2 5.2 5.2 3.0Service temperature Non-oxidizing atmosphere℃ –240～1650 –240～800 –240～800 –240～800 –240～800

Oxidizing atmosphere℃ –240～ 400 –240～400 –240～400 –240～400 –240～400Gasket coefficient m 2.00 2.00 2.00 2.00 ─Minimum design seating stress y N/E 26.0 29.4 29.4 29.4 ─Recommended seating stress forgas sealing. N/E 49.0 49.0 49.0 49.0 49.0

Expanding Graphite Gaskets

GRASEALTM

Gasket Tape TOMBO� No.1220/1221

GRASEAL gasket tape is a self-adhesive tape witha peel off backing and it can easily be installed toall dimensions and shapes. Two different types areavailable for different applications.

¡TOMBO No. 1220 GRASEAL Gasket Tape (Plain)The surface of this GRASEAL Gasket Tape is smooth.The 0.25mm thick type is suitable for flanges with largediameters of 18 inches or over.

¡TOMBO No. 1221 GRASEAL Gasket Tape (Crinkled)This crinkle processed GRASEAL Gasket Tape is suitablefor flanges with a diameter of about 16 inches or less.

■Applications 1. Use as a free-size gasket by applying directly to the

flange surface.2. Improving sealability of metal gaskets (TOMBO No.1840,

1850 etc.) by applying this tape on the sealing surfacewhen seating stress is not adequate.

3. Plain tape with a thickness of 0.13A can be used as atape sealant for high-pressure threaded joints up to300℃.

CautionsDo not use together with soft gaskets such as jointsheets.

TOMBO No.1220

■Standard sizesType Thickness(A) Width(A) Length(mtr)

0.13 12.7 7.6TOMBO No.1220 0.25 12.7 7.6

0.25 25.4 15.20.38 12.7 7.2TOMBO No.12210.38 25.4 14.2

Stainless steel plate(SUS 316 100μ)

Stainless steel plate(SUS 304 100μ)

Stainless steel plate(SUS 316 50μ)

Double-sided tape

Double-sided tape

■Service range and design standards

TOMBO No. 1200GRASEAL Gasket

TOMBO No. 1210-AGRASEAL Gasket MI-A

TOMBO No. 1215GRASEAL Gasket PM

TOMBO No. 1215-AGRASEAL gasket PM-A

TOMBO No. 1220,1221

GRASEAL Gasket Tape

Type

Item

■Not applicableType Fluid name

Oxidizing acids Nitric acid, concentrated sulphuric acid, hot sulphuric acid, mixed acids, chromic acid,etc.

Oxidizing salts Nitrate, chlorate, hypochlorite, etc.Halogen compounds Bromine, fluorine, iodine, chlorine dioxide, etc.Combustion promoting gas Oxygen (pure oxygen)

！

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Fluoropolymer Gaskets Having Excellent Anti-corrosion Property

NAFLONTM

PTFE Cut Gasket TOMBO� No.9007

This is anti-corrosion NAFLON gaskets made of pure PTFE sheets bypunching to the prescribed dimensions and shapes. As PTFE offers outstanding chemical resistance and does not contaminatefluids, it can be used as a gasket material in a wide range of industries.For the services more than 100℃, filled PTFE gaskets which improve anti-creep property is recommended.

■Applications¡Various corrosive fluids, such as strong acids, strong alkalis, organic solvents. ¡Fluids where contamination is not allowed.¡Services where electrical insulating property is required.

■Applicable standardsJPI-7S-75

TOMBO No. 9007

■Design standard

Fluoropolymer Gaskets Having Low Creep Property

NAFLONTM

Glass Fiber Filled PTFE Cut Gasket TOMBO� No.9007-G20

As PTFE is a thermoplastics, it easily softens at high temperetures and is alsosubject to cold flow. Under high bolt tightening, sealing stress is reduced bycold flow. In order to improve this property, 20% glass fibers filled PTFE isused. It can be used for almost all chemicals except strong alkalis, such assodium hydrate etc. and hydrofluoric acid.For the services where TOMBO No. 9007-G20 is not used, following gasketsare recommended.Service temperature more than 150℃ TOMBO No. 9007-LCStrong alkalis, Hydrofluoric acid TOMBO No. 9007-SC

■Applications¡Strong acids, such as Chloric acid, Nitric acids, Surfuric etc., organic solvents. ¡Services where electrical insulating property is required.

■Applicable standardJPI-7S-75

TOMBO No. 9007-G20

■Design standard

Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, pleaserefer to page 45.＊For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use.

Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, pleaserefer to page 45.＊For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use.

TOMBO No.Standardthickness

A

Maximumouter diameter

A

GasketfactorC

Minimumseating stress y

N/E

Maximum allowableseating stress

N/E

Servicetemperature

℃

Maximum(1)

service pressurMPa

9007

1.0

1200

3.5 24.5

39.2 –100～100 1.01.5 3.2 22.62.0 3.0 19.63.0 2.5 19.6

TOMBO No.Standardthickness

A

Maximumouter diameter

A

GasketfactorC

Minimumseating stress y

N/E

Maximum allowableseating stress

N/E

Servicetemperature

℃

Maximum(1)

service pressurMPa

9007-G20

1.0

980

3.5 24.5

49.0 –100～150 2.01.5 3.2 22.62.0 3.0 19.63.0 2.5 19.6

43

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■Design standard

Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, pleaserefer to page 45.＊For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use.

■Design standard

Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, pleaserefer to page 45.＊For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use.

Fluoropolymer Gaskets Having Low Creep Property (Yellowish White Color)

NAFLONTM

Special Filler Filled PTFE Cut Gasket TOMBO� No.9007-LC

This is low creep PTFE cut gasket filled with a specialanti-corrosion, highly temperature resistant inorganicfiller. Its maximum service temperature is 200℃. This gasket can be used for almost all chemicals excepthydrofluoric acid and strong alkalis. For hydrofluoric acidand strong alkalis, TOMBO No. 9007-SC is recommended.

■Applications¡High temperature strong acids, such as chloric acid, nitric acid,

sulfuric acid etc.¡Petroleum and petrochemical products, organic solvents, heat

oil, heat media, steam.¡Services where electrical insulating property is required.

TOMBO No. 9007-LC

Fluoropolymer Gaskets Having Low Creep Property (Black Color)

NAFLONTM

Special Filler Filled PTFE Cut Gasket TOMBO� No.9007-SC

This is low creep PTFE cut gasket filled with specialcarbon. Its maximum service temperature is 200℃.This gasket can be used for almost all chemicals exceptoxidizing acids, such as sulfuring acid (conc.), nitric acid(conc.) etc.For oxidizing acids, TOMBO No. 9007 is recommended.

■Applications¡High temperature strong alkalis, such as sodium hydroxide,

potassium hydroxide etc.¡Petroleum and petrochemical products, organic solvents, heat

oil, heat media, steam.

■CautionThis gasket can not be used for the service where electricalinsulation is rerquired.

TOMBO No. 9007-SC

TOMBO No.Standardthickness

A

Maximumouter diameter

A

GasketfactorC

Minimumseating stress y

N/E

Maximum allowableseating stress

N/E

Servicetemperature

℃

Maximum(1)

service pressurMPa

9007-LC 2.0 1200 3.0 24.5 49.0 –100～200 3.0

TOMBO No.Standardthickness

A

Maximumouter diameter

A

GasketfactorC

Minimumseating stress y

N/E

Maximum allowableseating stress

N/E

Servicetemperature

℃

Maximum(1)

service pressurMPa

9007-SC 2.0 1200 4.0 29.4 58.8 –100～200 3.0

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Flexible Fluoropolymer Gaskets (Brown Color)

NAFLONTM

GL Gasket TOMBO� No.9007-GL

This gasket is made from PTFE with special anti-corrosionand heat resistant filler. Good in flexibility and suitablefor the pipings where high tightening stress can not beobtained, glass lined pipings and plastic pipings.This gasket can be used for almost all chemicals exceptstrong alkalis such as sodium hydroxidie andhydrofluoric acid. For the process which required whitecolor gasket, TOMBO No. 9007-FD is recommended.

■Applications¡Pipings and equipment which high tightening stress can not be

obtained, such as glass lined piping, plastic piping, equipmentmade from carbon, etc.

¡Strong acids, such as chloric acid, nitric acid, sulfuring acid etc.,organic solvents.

TOMBO No. 9007-GL

Flexible Fluoropolymer Gaskets (White Color)

NAFLONTM

FD Gasket TOMBO� No.9007-FD

This gasket is made from PTFE with special anti-corrosionand heat resistant filler. This is used for same applicationas TOMBO No. 9007-GL but this gasket is white color andmore flexible (soft) than TOMBO No. 9007-GL.This can be used for almost all chemicals except strongalkalis such as sodium hydroxidie and hydrofluoric acid.For gas sealing, TOMBO No. 9007-GL is recommended.

■Applications¡Pipings and equipment which high tightening stress can not be

obtained, such as glass lined piping, plastic piping, equipmentmade from carbon, etc.

¡Strong acids, such as chloric acid, nitric acid, sulfuring acid etc.,organic solvents.

TOMBO No. 9007-FD

■Design standard

Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, pleaserefer to page 45.＊For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use.

■Design standard

Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, pleaserefer to page 45.＊Not recommended to use for gaseous fluids.

TOMBO No.Standardthickness

A

Maximumouter diameter

A

GasketfactorC

Minimumseating stress y

N/E

Maximum allowableseating stress

N/E

Servicetemperature

℃

Maximum(1)

service pressurMPa

9007-GL 3.0 600 2.5 19.6 39.2 –100～200 2.0

TOMBO No.Standardthickness

A

Maximumouter diameter

A

GasketfactorC

Minimumseating stress y

N/E

Maximum allowableseating stress

N/E

Servicetemperature

℃

Maximum(1)

service pressurMPa

9007-FD 3.0 1200 2.5 19.6 39.2 –100～200 2.0

45

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Less Permeable Fluoropolymer Gasket (Brown Color)

NAFLONTM

LP Gasket TOMBO� No.9007-LP

Brown color gasket made from special PFA. This PFAmaterial has excellent chemical resistance, and permeationof chemicals and gases through resin is very small.Therfore, this gasket is suitable to seal halogens(chlorine, bromine etc.) which have very strongpermeability to fluoropolymer.

■Applications¡Strong alkalis, such as chloric acid, nitric acid, sulfuric acid etc.

and halogens.¡Petroleum and petrochemical products, various corrosive fluids,

organic solvents.

TOMBO No. 9007-LP

■Design standard

Notes : (1) Maximum service pressure at ambient temperature. This value becomes lower at high temperature. For details, pleaserefer to the figure below.＊For gas sealing application, TOMBO No.9400 NAFLON PASTE is recommended to use.

TOMBO No.Standardthickness

A

Maximumouter diameter

A

GasketfactorC

Minimumseating stress y

N/E

Maximum allowableseating stress

N/E

Servicetemperature

℃

Maximum(1)

service pressurMPa

9007-LP 2.0 277 3.0 19.6 29.4 –100～100 1.0

NAFLONTM

PTFE Solid Gasket (TOMBO�

No. 9007 Series)

Service Range

Notes : (2) Not recommended to use for full face (Type FF)flange.

(3) Not recommended to use for gaseous fluids.

46

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■Gasket construction

Gasket type Cross section Construction and explanation

AThis is a standard enveloped gasket produced by slitting a sheet of PTFEand inserting cushion material, as shown.

B

This is an enveloped gasket for large diameters (generally 1000 mm dia.or larger). Oval gaskets are also available. Since there is a heat seal inone place, sealability is slightly inferior to that of type A. The use ofNAFLON paste (TOMBO No. 9400) is recommended.

AS

The same as type A but with a square inner section. There is little space inside the gasket,so there is less possibility of damage by the rapid expansion of air due to temperature rises.Appropriate design of the inside diameter reduces the accumulation of liquid and smoothesthe flow in the fluid.

R-AThe same as types A and AS but with the outer periphery sealed. Fluid fromthe exterior cannot penetrate or leak into the core. Because of thisconstruction, even when used in vacuum lines, the covering strongly resistsbeing pulled inside. Since there is no turning of the covering, setting issmooth even when the flange gap is narrow.

R-AS

PTFE Enveloped Gaskets

NAFLONTM

PTFE Cushion Gasket TOMBO� No.9010

The core of non-asbestos joint sheets, non-asbestos paper, etc.,which have high cushioning properties, are covered with a thinPTFE film. This gasket is more resistant to creep than a PTFEcut gasket (TOMBO No. 9007).Due to the PTFE film covering the inner diameter and sealingsurface of the gasket, there is no contamination of fluids.Furthermore, due to the excellent chemical resistance andsolvent resistance of the PTFE film, this gasket can be used fora wide range of applications in various fields such as finechemicals, petrochemicals, pharmaceuticals, foodstuffs, andgeneral industries.

■Applications¡Various corrosive fluids, organic solvents.¡Fluids where contamination is not allowed.¡Where electrical insulation is required.

■Applicable standardsJPI-7S-75

TOMBO No. 9010-NA-A-5, 9010-NA-R-A-5

TOMBO No. 9010-NA-A-7, NA-A-8, NA-A-9

■CautionsPlease refer to page 49.

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■Type of Core

Core type Cross section and core material Construction and explanation

5Non-asbestos joint sheet (TOMBO No. 1995) is used as the core.Suitable for metal flanges which can obtain relatively high bolttightening stress.

6The core is a combination of non-asbestos joint sheet (TOMBONo. 1995) and non-asbestos paper. Good in cushioning andsuitable for glass lined flanges etc.

Non-asbestos joint sheet

Non-asbestos paperNon-asbestos joint sheet

7Non-asbestos joint sheet of core type 5 is replaced with hightemperature use non-asbestos joint sheet (TOMBO No. 1120).Non-asbestos joint sheet

for high tempereture use

8Non-asbestos joint sheet of core type 6 is replaced with hightemperature use non-asbestos joint sheet (TOMBO No. 1120).Non-asbestos joint sheet

for high tempereture useNon-asbestos paper

9The core is a combination of high temperature use non-asbestosjoint sheet (TOMBO No. 1120) and stainless steel mesh.Non-asbestos joint sheet

for high tempereture useStainless steel wire mesh

Notes : Cross sectional diagram is for A type.

Notes : (1) Not recommended for use in locations with frequent thermal fluctuations exceeding 100℃ and pressure fluctuation, or inlocations where maintenance work is difficult.

Notes : (2) The indicated service pressures are for ambient temperatures. These values become lower at higher temperature.For detailed service range, please refer to page 49.

■Indications

9 0 1 0 ─N A ─□─□

● Core type

● Gasket type

● Indication for non-asbestos

TypeMinimum inside

diameterA

Maximum outsidediameterA

Core typeGasket factor

C

Minimum seating stress

N/E

Maximum allowableseating stress

N/E

Servicetemperature

℃

Maximum (2)

service pressureMPa

A 16 1000

5, 6 3.5 14.7 29.4 –30～150 (1) 2.0

7, 8 3.5 14.7 29.4 –30～150 2.0

9 3.5 19.6 39.2 –30～200 2.0

AS 20 700

5, 6 3.5 14.7 29.4 –30～150 (1) 2.0

7, 8 3.5 14.7 29.4 –30～150 2.0

9 3.5 19.6 39.2 –30～200 2.0

B 300 As specified5, 6 4 19.6 29.4 –30～150 (1) 2.0

7, 8 4 19.6 29.4 –30～150 2.0

■Design standard

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■TOMBO� No. 9010 (Type A, B, AS)

Type of piping Flange standard Pressure rating SizeGasket type

Standard productsCore type Standard dimensions table

Ordinery piping

JIS B 2238-1996

5 K

10 K

16 K

20 K

10～600A

A

AS

B

A

AS

B

B

B

ASA

ASA

A

567895678956785678956789567856785678777768

P98

P100

P99

P98

P83

P87

P86

P83

P85

P84

P101

P88

P97

650～1500A

1 / 2～24B

14～60B

26～96B

26～60B

15～25A40～300A1 / 2～1B

1-1 / 2～12B

CLASS 75

CLASS 150

CLASS 300

CLASS 125

CLASS 250

CLASS 150

CLASS 300

10 K

150 LB

ASME B16.5

ASME B16.47

Series B

(JPI-7S-15-1999)

(JPI-7S-43-2001)

ASME B16.1

Taylor Forge

ASME B16.47Series A

(MSS SP-44-1996)

JIS

ASME(JPI)

20～200A10KAsahi Techno Glass GL piping

NAFLON linedpiping

Glass lined piping

Other Piping Please consult with us for detailed designing.

■TOMBO� No. 9010-NA (Type R-A, R-AS)

Type of piping Gasket standard Pressure rating SizeGasket type

Standard productsCore type Standard dimensions table

Ordinery piping

Other Piping Please consult us for detailed designing.

JIS B 2238-19965 K

10 K10～600A

R-A

R-AS

56785678

P102

P103

＊Please consult with us for the products other than standard material, struction and dimensions.

■NAFLONTM

PTFE Cusion Gasket Standard products list for various pipingFor safety use by maintaining original function of NAFLON PTFE cushion gasket, we set the standard material,

shape, dimension for several piping materials.

Please select right products with refering the table below.

49

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NAFLONTM

PTFE Cushion Gasket (TOMBO�

No. 9010 Series)

Core type 5 - 8 (For core type 5 and 6, Core type 5 and 6 is not recommended for the place where thermal and pressure fluctuation is often happened and the place where maintenance work is difficult.) Core type 9

Temperature（�）

Pressure MPa

■Flange FinishThe recommended surface roughness of metalflange is 6.3μmRa.

■For Gas SealingTo seal gases, TOMBO No. 9400, NAFLON Pasteshall be applied.

■For Installation¡Before setting the gasket, make sure that flange

surface is free from foreign material or scratch.¡When setting the gasket, make sure to have

enough distance between flanges. If gasket isforced to insert, it may cause leakage bydamaging the gasket or peeling off of PTFEenvelope.

¡If enough distance between flanges are notavailable, "R" type is recommended.

¡This type will prevent damage and peeling off ofPTFE envelope during installation.

¡For core types of 6 and 8, seating stress atcompression failure declines when the gasketbecomes wet.Therefore, store the gaskets in water-proof bags.In addition, take precautions so that gasket doesnot become wet by rain after installation.If the gasket is not tightened enough, soap-waterfrom pneumatic testing or rain-water couldpermeate and soften the non-asbestos paper,pushing non-asbestos paper out of the gasket.Take precautions since in such cases, the seatingstress on the gasket decreases and leakage can occur.

¡Do not reuse materials that have already beenused once.

■Seating Stress¡Seating stress of gasket shall be controlled to

maintain 29.4N/mm2 max.¡If gasket seating stress becomes more than this

value, jointing sheet of the core may be destroyed.Uneven tightening also results excess seatingstress partly and will cause for compressive failure.

¡Special attention shall be paid for bolt tightening.¡For Fluoropolymer lined piping, we set

recommended tightening torque size by size. Fordetails, please consult us.

■Air tight test¡When air tight test is conducted after installation,

bubble may be observed between PTFE envelopeand core material.

¡This is the air accumulated inside of cushioningmaterial or between the cushioning material andPTFE envelop.

¡Especially for core type 6 and 8, these corematerials have such tendency.

¡So, air tight test shall be conducted well afterinternal pressure is applied.

■Others¡Bolt tightening may be loosen in long time or after

heat cycles.¡Bolt tightening shall be checked periodically and

when bolt is loosen, re-tightening shall be done byinitial bolt torque.

¡When thermal stress or bending stress isrepeatedly applied to the flanges, gasket seatingstress is easily reduced.

¡This gasket is not recommended for such part.

■Cautions for selection of PTFE Cushion gasket¡Some of the fluids may permeate to inside of the

gasket thru PTFE envelope.¡Especially nitric acid, ethylene chloride, halogens

(chroline, bromine, etc.), molten sulfur and mono-chloroacetic acid may attack the cushioningmaterial by permeation in long time and as aresult, gasket function will be lost. In such case,gasket shall be changed periodically or use PTFEcut gasket instead.

¡When type "A", "B" and "AS" type is used forvacuum service, PTFE envelope may be pulled in.In such case, "R" type is recommended.

¡Due to its shape of "A" type, fluid may remain inthe space between flanges and gasket. To avoidthis fluid remaining, "AS" type with appropriategasket inner diameter shall be used.

¡For plastic, glass and rubber lined pipings, eachflange has different gasket dimensions althoughflange standard is JIS standard. Please consult usfor proper gasket dimensions if the gaskets areused for such pipings.

■Cautions for NAFLONTM

PTFE Cushion Gasket

■Service Range

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Electrical Insulation Bolt Kit TOMBO� No.9910 / 9910-H

Electrical Insulation Bolt kit is designed for cathodicprotection.This kit consisits of bolt with factory applied insulatingsleeve, insulating washers, metal washers and nuts.

■Features¡Excellent in electrical instulating performance

As all contact area with metal is covered with fluoropolymer andother high performance materials.

¡Easier installation.As insulating sleeve is already applied to bolt, trable of fittingduring installation, such as cracking, chipping, displacement etc.can be eliminated

¡Solution for complicated purchasing and management.The problem of excess and deficiency will be resolved becausenecessary number of metal washer, insulation washer and nutare combined as a set for one bolt.

■Standard SizeASME Flanges : Class 150 - 1/2" to 60"

Class 300 - 1/2" to 60"JIS Flanges : 10K - 10A to 1500A

20K - 10A to 900AIndication of sizeStandard size : "Pressure rating" x "Flange size"

ex. Class 150 x 8", JIS 10K x 200ANon-standard size : "Thread dia." x "Total Length" x

"Insulation sleeve length"ex. M20 x 100L x 40LS

TOMBO No. 9910

TOMBO No. 9910-H

Cross Section : TOMBO No. 9910

■Design standard

■Physical properties of insulaing material

TOMBO No.9910Service Temperature －30～150℃

Insulating Sleeve PVdF coating by baking(PVdF: Polyvinylidene fluoride)

＊This table shows pyscal properties of insulating materials to be used for parts of insulation bolt kit. Pyscal properties of each part ofinsulation bolt may vary from this table due to manufacturing process and size.

＊Above fugure is general characteristics. Not for specification nor guarantee.

Insulating Gasket

Insulating Bolt

Metal WasherInsulating Washer

PVdF Coating

PVdF PTFE FRP FRS(Epoxy) (Silicone)

Tensile Strength Mpa 38～51 27～34 294～343 69～118

Compressive Strength Mpa 60 12 196～490 294～519Hardness Shore D Shore D Rockwell Rockwell

80 50～55 120～125 118～122Dielectric Strength KV/A 10 19 22～27 10>Volume Resistivity Ω-B >1014 >1018 >1014～>1016 >1011～>1015

Surface Resistivity Ω >1013 >1016 >1012～>1014 >1012～>1014

Water Absolution ％ 0.04 <0.01 0.1～0.3 <0.35Heat Resistance ℃ 150 260 180 200

TOMBO No.9910-H－30～200℃ (with FRS washer)

PTFE tube lining

Glass reinforced epoxy (FRP) : up to 180℃ orGlass reinforced sillicone (FRS) : up to 200℃SNB7 (Unified screw thread)For ASME flange

Insulating Washer Glass reinforced epoxy (FRP)

Bolt SNB7 (Unified screw thread)SS400 (Metric screw thread)

S45CFor JIS flangeFor ASME flange

SS400 (Metric screw thread)

SS400SS400

Nut S45CFor JIS flange SS400

Metal washer (as per JIS B1256) SS400

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Electrical Insulation Gasket TOMBO� No.9010-NA-E5 / 9007-LC

NAFLON PTFE has excellent electrical insulatingproperties.This electrical insulating gasket is made of PTFE and tobe used for electrical insulation between flanges.

2 types of gaskets are available for your application.

■Features¡TOMBO No. 9010-NA-E5

This gasket is flexible and can be sealed with relatively lowseating stress. As PTFE has very good chemical resistance aswell, it can be used for various types of fluids such as corrosivefluids (acids / alkalis), organic solvents etc.

¡TOMBO No. 9007-LCThis gasket is punch out gasket from low creap PTFE sheet withspecial inorganic filler. Maximum service temperature is 200℃.

■Standard SizeASME Flanges : Class 150 - 1/2" to 60"

Class 300 - 1/2" to 60"JIS Flanges : 10K - 10A to 1500A

20K - 10A to 900A

TOMBO No. 9010-NA-E5

TOMBO No. 9007-LC

■Design standard

■Service Range

Type Cross section and core material Structure

TOMBO No.9010-NA-E5

A type(Up to 24B or 600A) Standard products. Ring shape PTFE is

slitted and inserting cushion materials(TOMBO No. 1995)Standard size is up to 24" or 600A.B type

(26B or 650A andabove)

TOMBO No.9007-LC

Standard products for large diameter(26" and avove) or oval shape. As thereis a heat seal in one place, sealperformance is inferior to that of A type.

NAFLON PTFE Sheet

TOMBO No.1995Non-asbestos joint sheet

NAFLON PTFE Sheet

TOMBO No.1995Non-asbestos joint sheet

3.0

2.0

1.0

0-30 0

Temperature(℃)

Pre

ssu

re (

MP

a)

100 200

TOMBO No.9010-NA-E5(1)

TOMBO No.9007-LC

Note : (1) Not recommended for use in locations with frequentthermal fluctuations exceeding 100℃ and pressurefluctuation, or in locations where maintenance work isdifficult.

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TOMBO No. 9022-A TOMBO No. 9022-PFA TOMBO No. 9028

■Other Fluoropolymer Gaskets

Type TOMBO No. Product Name Construction and explanation

O-ring

Free-sizegasket

9022-A

This rubber O-ring is covered with thin (0.4A) PTFE film.PTFE covering has one overlap joint, but it is not securedwith adhesive. We offer type A and type B, and type A isused for gaskets.

NAFLONPTFE Covered RubberO-ring

9022-PFAThis fluoro-rubber (FA) O-ring is completely covered witha PFA tube. The PFA is seamless but the inner rubber O-ring has an open joint.

NAFLONPFA Covered Rubber O-ring

9028

This O-ring is machined form PTFE. There are three types: pure PTFE (TOMBO No. 9028), glass filledPTFE (TOMBO No. 9028-G20) and graphite filled PTFE(TOMBO No.9028-GR30).

NAFLON PTFE O-ring

9037A free-size string shape packing made by extrudingunsintered PTFE.

NAFLON SP Packing

9096

Soft type gasket made of expanded PTFE. Various cross sectional shapes areavailable such as oval, round (R), flat (B), square (K), tube (TB) as well as flatsheet (S). Oval shape is supplied with adhesive tape. Round (R) and tube (TB)shapes are supplied without adhesive tape. For flat (B), square (K) and flatsheet (S) shapes, both with and without adhesive tape are available.

NICHIAS Soft Seal

Other NAFLON gaskets available are TOMBO No. 9090 NAFLON Vortex and TOMBO No. 9094 NAFLON Manhole Gasket. For details,refer to each section.

■Standard dimensionsTOMBO No. Diameter (A) x Length (mtr)

2.4×159037 4.0× 9

5.6× 5

TOMBO No. Thickness(A)×Width(A)×Length(mtr)1.5× 3×30

9096 3.0× 6×154.5× 9× 86.0×12× 5

Note: TOMBO No. 9096 (oval) is treated withadhesive tape.

TOMBO No. Diameter(A)× Length(mtr)10×5

9096-R 12×520×5

TOMBO No. OD (A)×ID (A)×Length (mtr)2× 1×303× 2×304× 3×305× 4×20

9096-TB 6× 5×207× 6×208× 7×10

10× 8×1012×10×10

Note: TOMBO No. 9096 (round) is nottreated with adhesive tape

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TOMBO No. 9037 TOMBO No. 9096(OVAL)

Cross section Applications, service conditions Service temperature℃

Used as internal pressure sealinggaskets. Cannot be used for shaftsealing (both fixed and moving).

Depends on therubber material.

–15～180

–100～150

(Type A)

When used as a fixed O-ring, use at acompression ratio of 20 - 30%.This gasket is fitted into the groove like arubber O-ring.

Used for flange groove in the same way as rubber O-rings.Compression ratios are higher than for rubber O-rings. O-ring diameter 3.5A or less: 28% or more; 3.5 - 5.7A: 24%or more; 5.7A or larger: 22% or more.

–100～150Flanges for chemical ducts, low-pressuregas, etc.

–100～200Ducts, casing, large-diameter vessels,various types of lined vessels, etc.

(Oval type)

TOMBO No. Thickness(A)×Width(A)×Length(mtr)1.0× 20×15

9096-BT 1.0× 30×151.0× 50×151.0×100×152.0× 20× 52.0× 30× 5

9096-B 2.0× 50× 53.0× 20× 53.0× 30× 53.0× 50× 53.0×100× 5

9096-KT 5.0× 14×109096-K 7.0× 20× 5

TOMBO No. Indications of type Thickness(A) Width(A)×Length(A)

9096

-S(Without adhesive

tape)

-0.5 0.5

1500×15001500×3000

-1.0 1.0-1.5 1.5-2.0 2.0-3.0 3.0-4.0 4.0-5.0 5.0-6.5 6.5-10.0 10.0 1500×1500

-ST(With adhesive

tape)

-1.0 1.0

1500×1500-1.5 1.5-2.0 2.0-3.0 3.0-4.0 4.0

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Manhole Gasket■Features : These are cloth gaskets coated with a rubber

compound, matching the shape of the manhole.These gaskets are not completely airtight and should beused only where a certain amount of leakage is allowable.Suitable for application to large diameter distortedflanges and flanges to which only low seating stress isapplied.

TOMBO No. 1374, 1400-NA, 1400-S■Types

TOMBO No. Product name Construction Application Maximum service temperature (℃) Coroer

1374

1374-G

1378

1400-TH

1400-THG

1400-NA

1400-ST

1400-S

9094

400

400

400

600

600

800

300

NA Manhole gasketMade by coating glass cloth with naturalrubber using endless processing method.

NA Manhole gasket(Treated with graphite)

TOMBO No. 1374 is treated with graphite foranti-sticking.

NA gasket with core Both sides of the TOMBO No. 1368 NA gasket tape with coreare sewn into a ring with glass yarn to make the gasket.

FF Manhole gasketBoth sides of the FINEFLEX cloth reinforced with metalwires are coated with a special composition rubber and anendless processing method is used.

FF Manhole gasket(Treated with graphite)

TOMBO No. 1400-TH is treated with graphitefor anti-sticking.

Super Manholegasket-ST

The base cloth is woven by using metal wires as thewarp, and ceramics yarn containing metal wires as thewoof, then impregnating the cloth with heat resistantjoint filler and using an endless processing method.

800Super ManholeGasket-S

The based cloth is woven by using metal wires as thewarp and ceramic yarn reinforced by metal wires as thewoof, then impregnating the cloth with heat resistantjoint filler and using an endless processing method.

600

White

Black

White

White

Black

White

White

Black

BlackSuper ManholeGasket

The based cloth is woven by using metal wires asthe warp and glass yarn reinforced by metal wiresas the woof, then coating the cloth with rubber andusing an endless processing method.

NAFLON Manholegasket

Inorganic cloth, woven using a special method, isimpregnated with PTFE dispersion. This is thenformed into the shapes of various gaskets.

Manholes/handholesfor exhaust gas, hotair, etc.autoclaves, largediameters flanges.

Diesel engine exhaustpipes, flue gas ductmanholes, boilercombustion ductsealing materials.

Ducts requiringchemical resistance andsolvent resistance/ductsfor corrosive gasessuch as acid exhaustgas, and general gases.

1374, 1374-G ─ ─ ─ ◯ ─ ◯ ─ ─ ◯ ─ ◯ ◯ ─1378 ─ ─ ─ ◯ ─ ─ ─ ─ ─ ─ ─ ─ ─

Manhole 1400-TH,1400-THG ─ ─ ─ ─ ◯ ─ ─ ◯ ─ ─ ◯ ─ ◯

Gasket 1400-ST ─ ◯ ─ ─ ─ ─ ◯ ─ ─ ◯ ─ ─ ◯1400-NA ─ ─ ─ ◯ ─ ◯ ─ ─ ◯ ─ ◯ ◯ ─1400-S ─ ─ ◯ ─ ─ ─ ◯ ◯ ─ ─ ◯ ─ ◯9094 ◯ ─ ─ ◯ ─ ◯ ─ ─ ◯ ─ ─ ─ ─

Gasket tape

1364 ─ ─ ─ ◯ ─ ◯ ─ ─ ◯ ─ ─ ─ ─

1368, 1368-G ─ ─ ─ ◯ ─ ─ ─ ─ ─ ─ ─ ─ ─

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Gasket Tape■Features : This is a cloth tape gasket coated with a

rubber compound to form a multi-layer structure.These gaskets are not completely airtight and should beused only where a certain amount of leakage is allowable.Suitable for application to large diameter distortedflanges and flanges to which only low seating stress isapplied.

TOMBO No. 1364

■Types

TOMBO No. Product name Cross Section Construction Application

1364

1368

1368-G

400

400

400

NAGasket Tape

A tape shaped gasket made by glass clothwith natural rubber coating and thenfolding it.

Manholes/handholes for low-pressure steam,exhaust gas, hotair, etc.,autoclaves, largediameters flanges.

Doors anddampers forfurnaces, heatersand dryers, etc.Manholes forexhaust gas, hotair, and dust, etc.

TOMBO No. 1368 is treated with graphite for anti-sticking.

NA TadpoleGasket tape

NA tadpolegasket tape(Finished withgraphite)

A tape shaped non-asbestos gasket. This is madeby woven glass cloth with rubber compound andwinding it into a Vortex core. Then the outercovering made of the same materials is formed,as shown in the diagram.

■Standard dimensions

Type TOMBO No. Nominal thickness Dimensions1.6 2.5 3.0 3.2 4.0 4.8 5.0 6.0 6.4 7.5 8.0 9.6 10.0

As specified.

Width : 13, 20, 25, 30, 40, 50ALength: 30mtr

3 layer wrap

4 layer wrap

Height : 6.4, 7.9, 9.5, 11.1, 12.7,15.9, 19.1, 22.2, 25.4A

Width : 50A Length : 30mtr

Maximum servicetemperature (℃)

White

White

Black

Coroer

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Rubber Cut Gasket TOMBO� No.1050/1051

■Features : The elasticity, recovery and compatibility ofrubber are utilized to assure sealing at the lowest seatingstress. TOMBO No. 1051 is reinforced with polyestercloth, but is unsuitable for gas sealing.

■Applications Select the material in accordance with the serviceconditions for various piping flanges, equipment, etc.

■Service Range Service temperature range : depends on the rubber material.Maximum service pressure : 1.0MPa

TOMBO No. Product name Construction

1050

1051

Gasket cut from various types ofrubber sheets.Rubber Cut Gasket

Cloth ReinforcedRubber Cut Gasket

Gasket cut from various types ofrubber sheets reinforced withpolyester cloth.

Unit: A■Standard dimensions

Thickness 1.0 1.5 2.0 3.0 5.0 10.0 OthersWidth 1000Length 1000, 2000, 5000, 10000, 20000

＊ZR and PF dimensions are 300 (W) x 300 (L) x 1, 1.5, 2 or 3A (T).

＊TOMBO No.1051 is only available for "NBR", "CR" and "NR".

Rubber O-ring TOMBO� No.2670

■Features : These are self-sealing type rubber O-ringsproduced by molding various types of rubber into circularshapes. These can be used as shaft seals (packing) and asgaskets by fitting them into grooves. Sealing is good evenwith low tightening loads and throughout a range fromvacuum to high pressure up to 25MPa. For semi-conductor / LCD production equipment use orhigh temperature application up to 300℃, other brochureis available separately. Please consult with us for details.

■Applications Select the material in accordance with the fluid (materialsare the same as for TOMBO No. 1050). Gaskets for various types of devices.

■Service rangeService temperature range : depends on the rubber

material.Maximum service pressure : 25MPa (can be used for

greater pressure if used withback-up ring.)

■Applicable standardsJIS B 2401 AS 568 A

■Indications

1 0 5 0 ─□□ ● Material code

● TOMBO No.

2 6 7 0 ─□□ ● Material code

● TOMBO No.

Material code NBR CR EP IIR SI FA FS NR ZR PF

Materrial Nitryl rubber(oil resistant)

Chloroprene rubber(weather resistant)

Ethyl propylene rubber(weather resistant,

steam resistant)

Butyl rubber(weatherresistant, acid resistant,

steam resistant)

Silicone rubber(weather resistant,

cold resistant)

Fluorocarbonrubber

(heat resistant)

Fluorocarbonrubber

(corrosion resistant)Natural rubber

Hydrogen addednitryl rubber(oil resistant)

Perfluoroelastomerrubber

(corrosion resistant)

Service temperature －30～120 －30～120 －40～150 －30～150 －60～230 －15～200 0～200 －20～100 －30～150 0～200TOMBO No.1050 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○TOMBO No.1051 ○ ○ － － － － － ○ － －TOMBO No.2670 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

■Type

■Material codes and materials

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EbilonTM

Gasket (Solid Rubber)TOMBO� No.9013-EP/-DEP

■Features : Rubber molded gaskets having a crosssectional shape as per diagram below. Reliable sealingperformance is obtained even at lower seating stress thanthat of rubber gasket.Recommended for locations where service conditions arenot critical and chemical resistance is not particularlyrequired.

■TypesThere are two types using different types rubber.TOMBO No. 9013-EP: EPDMTOMBO No. 9013-DEP: Special EPDM for electrolytic cells.

■Service rangeService temperature : –40℃～ 150℃Maximum service pressure : 1.0MPaFlange : Full face

■Standard dimensionsPlastic flanges (equivalent to JIS 10K): 15A - 300AASME B16.5 (JPI), Class 150 1/2B ～ 24B

TOMBO No . 9013-EP

Rubber Rubber

TOMBO No . 9013

EbilonTM

Gasket (PTFE Jacketed) TOMBO� No. 9013/9013-D

■Features : Rubber molded gasket having the same crosssectional shape as TOMBO No.9013 but sealing surface isjacketed with PTFE film. This gasket has the elasticity ofrubber and the corrosion resistance of PTFEsimultaneously and gives good sealing performance.Ebilon gaskets are ideal for applications such as PVCpiping and glass lining piping, where only low seatingstress is attainable.

■TypesThere are two types using different rubber.TOMBO No. 9013 : PTFE jacketed EPDMTOMBO No. 9013-D : Special EPDM with jacketed PTFE

for electrolytic cells.

■Service rangeService temperature : –30℃～ 150℃Maximum service pressure : 2.0MPaFlange : Full face flangesFlange finish : 6.3 Ra or smoother

■Standard dimensionsPlastic flanges (equivalent to JIS 10K): 15A - 300AASME B16.5 (JPI), Class 150 : 1/2B ～ 24B

RubberPTFE Rubber

Type

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■Standard dimensions

Sanitary Use Gasket

SanicleanTM

Gasket TOMBO� No.9014

This is sanitary use rubber molded gaskets having PTFEfilm covering on the sealing surface of the gasket. Thanksto this unique structure, this gasket has advantages ofrubber gasket and PTFE.

Following types are available.¡For thread connector

TOMBO No. 9014-A (Black color EPDM rubber)¡For ferrule

TOMBO No. 9014-B (Black color EPDM rubber)TOMBO No. 9014-BW (White color EPDM rubber)

■Features¡All the contact surface with fluid is covered with PTFE film.

So, it is durable against hot water, alkalis, chlorine water etc.and lasts longer than rubber gaskets.

¡As all the contact surface with fluid is PTFE, fluid is not adheredto surface and not permeate to inside. So contamination atflavor change is avoided.

¡Sanitation process and time can be reduced at flavor change andincrease productivity.

¡Basically same application procedure as conventional rubbergasket but re-tightening process is required additionally.

Note : Flavor change : Change of product at common use beverage

manufacturing process such as bottling etc.Sanitation : Cleaning work. Washed with clean water,

chlorine water, hot water, alkalis etc.

TOMBO No. 9014-A, For thread connector

TOMBO No. 9014-B, for Ferrule (Black rubber)

TOMBO No. 9014-BW, For Ferrule (White rubber)

φA

φA

φB

φB

φC

PTFE（0.3t）

PTFE（0.3t）

Rubber（EPDM）

Rubber（EPDM）

R1.2

6.5 5.

5

48

5.3

1.7

1.7

20

φB

φC

TOMBO No. 9014-A(For thread connector)

TOMBO No. 9014-B / BW(For Ferrule) ＊Standard dimensions for TOMBO No. 9014-A, B, BW are set by us in accordance IDF standard.

However, it can also be used for the connectors and ferrule as per ISO 2852 and ISO 2853.

NominalSize

(Inch)

TOMBO No. 9014-A (Thread) TOMBO No. 9014-B, BW (Ferrule)

φA φB φC φA φB φC

1 32.5 29.2 23.0 49.5 43.5 23.1

1-1/2 46.0 42.7 35.6 49.5 43.5 35.8

2 59.5 56.2 47.8 63.0 56.5 48.0

2-1/2 73.0 69.9 59.5 76.5 70.5 59.7

3 86.5 82.6 72.1 90.0 83.5 72.3

4 112.5 108.3 97.6 118.0 110.0 97.8

* TOMBO No. 9014, Saniclean Gasket conforms to standard of food and food additives (Noticeby Japanese ministry of health and welfare No. 370 in year 1959), No.3-D-2, apparatus ofsynthetic resin.Also it passed material and elution test of container and packaging material (Notice byJapanese ministry of health and welfare No. 85, revised in 1986).

NA beater sheet

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■Other Gaskets

TOMBO No. 1600 TOMBO No. 6526 TOMBO No. 6750-P

TypeTOMBO

No.Product name

Construction and features ApplicationMax

temperature(℃)Applicablestandards

Rubber coatedmetal gasket

1600 METAKOTE�

A high-performance gasketmaterial formed from thelamination of rubber andmetal sheet. Both sides ofmetal sheet are coatedwith rubber and finishedwith graphite.

Engine Gaskets,Cylinder headgaskets, Hydraulicand Pneumaticequipment gasketsCompressor gaskets(air conditioning,freezer, refrigeratoretc.), sealingwashers

Dependson grade

–

Non-asbestosbeater sheet

6526NA Beatersheet

Non-asbestos beater sheetsmade of special heat-resistantfibers, NBR rubber latex andheat-resistant fillers.

Gaskets for oil andwater devices, etc.

150ASTMF104

(F304140)

Non-asbestosmill board

6750-PVermosulSheet-P

Non-asbestos mill boardmade of inorganicminerals and inorganicbinder.

Combustion gas sealsfor hot air heaters,high-temperature (lowpressure) gaskets.Cannot be used asgaskets for pipingsand equipment.Not suitable for fluidsealing.

800 –

■Standard Dimensions of NA beater sheetTM / Vermosul sheetTM-P

■Standard Products of METAKOTETM / METAFORMTM

¡Typical grade

¡Master coil size of METAKOTE / METAFOAMMaster coil width : 914 mm width (effective width 876 mm) ＊Slited coils to your requirement is also available.

Unit: A

Thickness 0.5 0.8 1.0

TOMBO No.6526 500 ×1000

Vermosul sheet-P

Thickness 1.0 1.5 2.0 3.0 5.0 6.0

TOMBO No.6750-P 1000 ×1000

Unit: A

Foamed rubbercoated metalgasket

1608 METAFOAM�

Gasket material made ofmetal sheet coated withfoamed rubber forexcellent sealing andvibration dampingproperties.

Engine gasket,Hydraulic andPneumaticequipment gaskets

Dependson grade

–

TOMBO No. 1600, METAKOTETM

Grade For automobile gasketsTS Combination of cold rolled steel (carbon steel) and NBRJZ Combination of stainless steel sheet SUS301H and NBR

LZ Combination of stainless steel sheetSUS301H and Fluoroelastomer (FKM)

Grade For refrigeratorsRS Combination of cold rolled steel (carbon steel) and NBRRA Combination of aluminum sheet and NBR

Notes : (1)These grades are subject to change without notice.Notes : (2)For other application such as brake shim, washers etc., please consult us.

TOMBO No. 1608, METAFOAMTM

Grade For general purpose

PS Combination of cold rolled steel (carbonsteel) and NBR base foam rubber.

PA Combination of aluminum sheet andNBR base foam rubber.

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Aqua-tight Paste TOMBO� No.9105

Gasket paste for water base fluids, made of fine micaparticles mixed with special oil-soluble binder.

Oil-tight Paste TOMBO� No.9106

Gasket paste for oil base fluids, made of fine mica particlesmixed with oil and solvent resistance water soluble binder.

Anti-corrosion Paste TOMBO� No.9120

Gasket paste for asbestos and NA joint sheets when they areused for stainless steel flanges. Coating anti-corrosion pasteon the surface of the gasket prevents corrosion and pittingof stainless steel flanges.

!

Notes: Do not use for fluids if even slight dissolution is prohibited.

–200～900℃Light beigeapprox. 200N/G (12.5G/can)2.5O plastic container

Petroleum type oils, oil gas, solvents, solvent vapor, animal oils,hydrocarbon type fluids, exhaust gas, etc. This is suitable for oil, etc.

250℃GrayApprox. 350N/G (8.5G/3O can)1O can and 3O can

Notes: Do not use for fluids if even slight dissolution is prohibited.

Water (except brine).Oil, etc.

Water type fluids such as water, water vapor,sea water, acids, alkalis,salt solutions, etc.–200～200℃Light beigeApprox. 200N/G (12.5G/can)2.5O plastic container

Fluids

Maximum service temperatureColorCoveragePackage

Fluids

Maximum service temperatureColorCoveragePackage

Notes: Do not use for fluids if even slight dissolution is prohibited.

Fluids

Maximum service temperatureColorCoveragePackage

Gasket paste is a sealing aid that enhances the sealing performance of

various types of gaskets, prevents scorching and leaks.

Warning Gasket paste is for supplementing the sealing function ofgaskets and cannot be used alone. Always use to apply on gaskets.

■Gasket Paste

Hazardous cargo for ocean / air transportation, IMCO class 3, UN No.1993, Flash point 27-32℃. For details,please refer to MSDS available separately.

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NAFLON™ Paste TOMBO� No.9400

General purpose gasket paste, made by dispersingfine colloidal particles of PTFE in water. Thisgasket paste is inactive at ambient temperature.As it is also chemical resistant, this paste can beused for acids and corrosive fluids. For PTFE typegasket, this paste is most suitable.

PTFE Grease TOMBO� No.9401

Lubricating grease made from PcTFE oil mixedwith fine PTFE particles in it. Good in heat andchemical resistance and lubrication. This grease isincombustible.

Fluids

Maximum service temperatureColorCoveragePackage

Water, oil, acid, corrosive fluids, vacuum.

260℃WhiteApprox. 50N/G (2G/tube)65" (approx. 100N) tube.

Notes: Do not use for fluids if even slight dissolution is prohibited.

Oxygen, corrosive fluids, vacuum.

150℃WhiteApprox. 50N/G50N tube.

Notes: Do not use for fluids if even slight dissolution is prohibited.

Cautions1. For gasket paste in can, stir well before using. 2. Small amount layer with a brush, waste, etc. Excessive application may result in gasket damage.3. To improve the gas sealing performance with joint sheet,

apply gasket paste on the inner circumference to avoid leakage.4. Place the gasket on the flange before the gasket paste completely dries.5. Store in a cool, dark place.

Fluids

Maximum service temperatureColorCoveragePackage

Standard

Dim

ension Charts

63

Standard Dimension Charts

Index ────────────────────────────

For ASME FlangesFor JPI FlangesFor Taylor Forge & Ladish FlangesFor MSS Flanges

●Soft Gasket Standard DimensionsFull Face Gaskets (for B16.1, B16.5) …………………………………………………………………………………………… 64Flat Ring Gasket (for B16.1, B16.5)……………………………………………………………………………………………… 65Flat Ring Gasket (for B16.47 Series A, MSS) ……………………………………………………………………………… 66Flat Ring Gasket (for B16.47 Series B, API)………………………………………………………………………………… 67Flat Ring Gasket (for Taylor Forge) ……………………………………………………………………………………………… 67T&G, M&F ……………………………………………………………………………………………………………………………………… 68

●Vortex Gasket Standard DimensionsFor B16.5, B16.47 Series B…………………………………………………………………………………………………… 70～73For B16.47 Series A, MSS …………………………………………………………………………………………………………… 74For B16.5 T&G, M&F …………………………………………………………………………………………………………………… 75For Taylor Forge & Ladish …………………………………………………………………………………………………… 76～77

●Ring Joint Gasket Standard DimensionsFor R Ring ……………………………………………………………………………………………………………………………… 78～79For RX Ring …………………………………………………………………………………………………………………………………… 80For BX Ring …………………………………………………………………………………………………………………………………… 81Correspondence of Ring No. and Flanges…………………………………………………………………………………… 82

● NAFLONTM PTFE Cushion Gasket Standard DimensionsFor B16.5, B16.47 Series B (A & B type)……………………………………………………………………………………… 83For B16.47 Series A, MSS (B type) ……………………………………………………………………………………………… 84For B16.1, Taylor Forge (B type) ………………………………………………………………………………………………… 85For B16.5 (AS type) ……………………………………………………………………………………………………………………… 86For B16.5 (For high temperature applications) …………………………………………………………………………… 87For B16.5 (For NAFLON lined piping) ………………………………………………………………………………………… 88

●Ebilon Gasket Standard Dimensions ………………………………………………………………………………… 89●Electrical Insulation Bolt Kit Standard DimensionsFor Class 150 ………………………………………………………………………………………………………………………………… 90For Class 300 ………………………………………………………………………………………………………………………………… 91

For JIS Flanges

● Soft Gasket Standard Dimensions …………………………………………………………………………… 93～95● Vortex Gasket Standard Dimensions………………………………………………………………………… 96～99● NAFLONTM PTFE Cushion Gasket Standard Dimensions…………………………………… 100～105● Ebilon Gasket Standard Dimensions ……………………………………………………………………………… 106●Electrical Insulation Bolt Kit Standard DimensionsJIS 10 …………………………………………………………………………………………………………………………………………… 107JIS 20 …………………………………………………………………………………………………………………………………………… 108

For ASME B16.1 FlangesFor ASME B16.5 Flanges Soft Gasket/Full Face Gasket (F.F.)

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Nominal Pipe

Size

Inner

diameter

D1

For ASME B 16.1 Cast iron flanges For ASME B 16.5 Steel flanges

Class 25 Class 125

Outer diameterD2

Bolt circle diameterC n × h Outer diameter

D2Bolt circle diameter

C n × h

Class 150

Outer diameterD2

Bolt circle diameterC n × h

Dimension Chart 1 Unit : A

1／2 21.3 ─ ─ ─ ─ ─ ─ 88.9 60.5 4×15.7

3／4 26.9 ─ ─ ─ ─ ─ ─ 98.6 69.8 4×15.7

1 33.3 ─ ─ ─ 108.0 79.2 4×15.7 108.0 79.2 4×15.7

11／4 42.2 ─ ─ ─ 117.3 88.9 4×15.7 117.3 88.9 4×15.7

11／2 48.5 ─ ─ ─ 127.0 98.6 4×15.7 127.0 98.6 4×15.7

2 60.5 ─ ─ ─ 152.4 120.6 4×19.0 152.4 120.6 4×19.0

21／2 73.2 ─ ─ ─ 177.8 139.7 4×19.0 177.8 139.7 4×19.0

3 88.9 ─ ─ ─ 190.5 152.4 4×19.0 190.5 152.4 4×19.0

31／2 101.6 ─ ─ ─ 215.9 177.8 8×19.0 215.9 177.8 8×19.0

4 114.3 228.6 190.5 8×19.0 228.6 190.5 8×19.0 228.6 190.5 8×19.0

5 141.2 254.0 215.9 8×19.0 254.0 215.9 8×22.4 254.0 215.9 8×22.4

6 168.1 279.4 241.3 8×19.0 279.4 241.3 8×22.4 279.4 241.3 8×22.4

8 218.9 342.9 298.4 8×19.0 342.9 298.4 8×22.4 342.9 298.4 8×22.4

10 273.0 406.4 362.0 12×19.0 406.4 362.0 12×25.4 406.4 362.0 12×25.4

12 323.8 482.6 431.8 12×19.0 482.6 431.8 12×25.4 482.6 431.8 12×25.4

14 355.6 533.4 476.3 12×22.4 533.4 476.2 12×28.4 533.4 476.2 12×28.4

16 406.4 596.9 539.8 16×22.4 596.9 539.8 16×28.4 596.9 539.8 16×28.4

18 457.2 635.0 577.9 16×22.4 635.0 577.8 16×31.8 635.0 577.8 16×31.8

20 508.0 698.5 635.0 20×22.4 698.5 635.0 20×31.8 698.5 635.0 20×31.8

24 609.6 812.8 749.3 20×22.4 812.8 749.3 20×35.1 812.8 749.3 20×35.1

30 762.0 984.2 914.4 28×25.4 984.2 914.4 28×35.1 ─ ─ ─

36 914.4 1,168.4 1,085.8 32×25.4 1,168.4 1,085.8 32×41.1 ─ ─ ─

42 1,066.8 1,346.2 1,257.3 36×28.4 1,346.2 1,257.3 36×41.1 ─ ─ ─

48 1,219.2 1,511.3 1,422.4 44×28.4 1,511.3 1,422.4 44×41.1 ─ ─ ─

54 1,371.6 1,682.8 1,593.8 44×28.4 ─ ─ ─ ─ ─ ─

60 1,524.0 1,854.2 1,759.0 52×31.8 ─ ─ ─ ─ ─ ─

72 1,828.8 2,197.1 2,095.5 60×31.8 ─ ─ ─ ─ ─ ─

84 2,133.6 2,533.6 2,425.7 64×35.1 ─ ─ ─ ─ ─ ─

96 2,438.4 2,876.6 2,755.9 68×35.1 ─ ─ ─ ─ ─ ─

Notes: (1) Soft gaskets include joint sheet gaskets, rubber cut gaskets,cloth reinforced rubber cut gaskets, Graseal gaskets andPTFE cut gaskets.

(2) This chart shows dimensions as per ASME B 16.21-1978Non-metallic Flat Gaskets for Pipe Flanges, converted frominches to millimeters.

(3) Applicable flanges are for ASME B 16.1 Cast Iron Flangesand ASME B 16.5 Steel Pipe Flanges.

(4) For class 25, joint sheet gaskets are not recommended.

For ASME B 16.1 FlangesFor ASME B 16.5 Flanges Soft Gasket/Flat Ring Gasket (F.R.)

65

Standard

Dim

ension Charts

Nominal Pipe

Size

Gasket inner

diameter

D1

For ASME B 16.1 Cast iron flanges For ASME B 16.5 Steel flanges

Gasket outer diameter D2

Class 25 Class 125 Class 250

Gasket outer diameter D2

Class 150 Class 300

Dimension Chart 2 Unit : A

1／2 21.3 ─ ─ ─ 47.8 53.8

3／4 26.9 ─ ─ ─ 57.2 66.5

1 33.3 ─ 66.5 73.2 66.5 73.2

11／4 42.2 ─ 76.2 82.6 76.2 82.6

11／2 48.5 ─ 85.9 95.2 85.9 95.2

2 60.5 ─ 104.6 111.3 104.6 111.3

21／2 73.2 ─ 124.0 130.0 124.0 130.0

3 88.9 ─ 136.7 149.4 136.7 149.4

31／2 101.6 ─ 162.1 165.1 162.1 165.1

4 114.3 174.8 174.8 180.8 174.8 180.8

5 141.2 200.2 196.8 215.9 196.8 215.9

6 168.1 225.6 222.2 251.0 222.2 251.0

8 218.9 282.4 279.4 307.8 279.4 307.8

10 273.0 345.9 339.9 362.0 339.9 362.0

12 323.8 416.1 409.4 422.1 409.4 422.1

14 355.6 457.2 450.8 485.6 450.8 485.6

16 406.4 520.7 514.4 539.8 514.4 539.8

18 457.2 558.8 549.1 596.9 549.1 596.9

20 508.0 616.0 606.6 654.1 606.6 654.0

24 609.6 730.2 717.6 774.7 717.6 774.7

30 762.0 892.0 882.6 952.5 ─ ─

36 914.4 1,063.8 1,047.8 1,117.6 ─ ─

42 1,066.8 1,231.9 1,219.2 1,289.0 ─ ─

48 1,219.2 1,397.0 1,384.3 1,492.2 ─ ─

54 1,371.6 1,568.4 ─ ─ ─ ─

60 1,524.0 1,730.2 ─ ─ ─ ─

72 1,828.8 2,067.1 ─ ─ ─ ─

84 2,133.6 2,394.0 ─ ─ ─ ─

96 2,438.4 2,724.2 ─ ─ ─ ─

Notes: (1) Soft gaskets include joint sheet gaskets, rubber cut gaskets,cloth reinforced rubber cut gaskets, Graseal gaskets andPTFE cut gaskets.

(2) This chart shows dimensions as per ASME B 16.21-1978,Non-metallic Flat Gaskets for Pipe Flanges, converted frominches to millimeters.

(3) Applicable flanges are for ASME B 16.1 Cast Iron Pipe Flanges andASME B 16.5 Steel Pipe Flanges.

(4) For class 25, joint sheet gaskets are not recommended.

For ASME B16.47 Series A FlangesFor MSS SP-44 Flanges Soft Gasket/Flat Ring Gasket (F.R.)

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Pipe Size

Gasket inner diameter

D1

Gasket outer diameter D2

Class 150 Class 300

Dimension Chart 3 Unit : A

22 558.8 660.4 704.9

26 660.4 774.7 835.2

28 711.2 831.8 898.7

30 762.0 882.6 952.5

32 812.8 939.8 1,006.3

34 863.6 990.6 1,057.1

36 914.4 1,047.8 1,117.6

38 965.2 1,111.2 1,054.1

40 1,016.0 1,162.0 1,114.6

42 1,066.8 1,219.2 1,165.4

44 1,117.6 1,276.4 1,219.2

46 1,168.4 1,327.2 1,273.0

48 1,219.2 1,384.3 1,323.8

50 1,270.0 1,435.1 1,378.0

52 1,320.8 1,492.2 1,428.8

54 1,371.6 1,549.4 1,492.2

56 1,422.4 1,606.6 1,543.0

58 1,473.2 1,663.7 1,593.8

60 1,524.0 1,714.5 1,644.6

Notes: (1) Soft gaskets include joint sheet gaskets, rubber cut gaskets, cloth reinforced rubber cut gaskets,Graseal gaskets and PTFE cut gaskets.

(2) This chart shows dimensions as per ASME B 16.21-1978, Non-metallic Flat Gaskets for PipeFlanges, converted from inches to millimeters.

(3) Applicable flanges are for ASME B 16.47 Series A and MSS SP–44.

(4) Nominal pipe size 22 for reference only. Size not listed in ASME B16.47.

For ASME B16.47 Series B FlangesFor API-605-1980 FlangesFor Taylor Forge Flanges

Soft Gasket/Flat Ring Gasket (F.R.) Group I

67

Standard

Dim

ension Charts

Nominal Pipe

Size

Raised Face Flanges Slip-on Welded Flanges

Gasket outer diameter Class 175 Class 350Gasket innerdiameterD2

Class 75D2

Class 150D2

Class 300D2

Outer diameter D2

Inner diameterD1

Inner diameterD1

Outer diameter D2

Dimension Chart 4 Unit : A

26 660.4 708.2 725.4 771.7 711 737 724 749

28 711.2 759.0 776.2 825.5 762 787 775 800

30 762.0 809.8 827.0 886.0 813 845 826 857

32 812.8 860.6 881.1 939.8 864 895 876 908

34 863.6 911.4 935.0 993.6 911 949 927 959

36 914.4 973.1 987.6 1,047.8 962 1,000 984 1,022

38 965.2 1,023.9 1,044.4 1,098.6 1,013 1,051 1,035 1,073

40 1,016.0 1,074.7 1,095.2 1,149.4 1,064 1,102 1,080 1,124

42 1,066.8 1,125.5 1,146.0 1,200.2 1,118 1,162 1,130 1,181

44 1,117.6 1,181.1 1,196.8 1,251.0 1,168 1,213 1,191 1,241

46 1,168.4 1,231.9 1,255.8 1,317.8 1,219 1,264 1,241 1,292

48 1,219.2 1,282.7 1,306.6 1,368.6 1,270 1,314 1,292 1,343

50 1,270.0 1,333.5 1,357.4 1,419.4 1,321 1,365 ─ ─

52 1,320.8 1,387.3 1,408.2 1,470.2 1,372 1,422 ─ ─

54 1,371.6 1,438.1 1,463.5 1,555.8 1,422 1,473 ─ ─

56 1,422.4 1,495.6 1,514.3 1,593.9 ─ ─ ─ ─

58 1,473.2 1,546.4 1,579.6 1,655.8 ─ ─ ─ ─

60 1,524.0 1,597.2 1,630.4 1,704.8 1,575 1,626 ─ ─

Notes: (1) Soft gaskets include joint sheet gaskets, rubber cut gaskets, cloth reinforced rubber cut gaskets,Graseal gaskets and PTFE cut gaskets.

(2) Dimensions for raised face flanges are the same as ASME B16.21-1992 but converted to millimeters from inches.

Dimensions for slip-on flanges are same as JPI-7S-16-85, Group I

(3) Applicable flanges are ASME B16.47 Series B Flanges. However, this chart can also be used for API-605-1980 and JPI-7S-43-85.

For slip-on welded flanges, applicable flanges are JPI-7S-43-85 as well as Taylor Forge flanges.

For JPI Male & Female /Tongue & Groove Flanges Soft Gasket

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Nominal Pipe Size

Large male & female Large tongue & groove

Group I Group II Group II

InnerdiameterD1

OuterdiameterD2

InnerdiameterD1

OuterdiameterD2

InnerdiameterD1

OuterdiameterD2A B

Dimension Chart 5 Unit : A

15 1／2 22 35 25 35 25 35

20 3／4 28 43 33 43 33 43

25 1 34 51 38 51 38 51

(32) (11／4) 44 64 48 64 48 64

40 11／2 49 73 54 73 54 73

50 2 61 92 73 92 73 92

65 21/2 77 105 86 105 86 105

80 3 90 127 108 127 108 127

(90) (31／2) 103 140 121 140 121 140

100 4 116 157 132 157 132 157

(125) (5) 143 186 160 186 160 186

150 6 169 216 190 216 190 216

200 8 220 268 238 268 238 268

250 10 275 323 287 323 287 323

300 12 326 380 344 380 344 380

350 14 358 412 376 412 376 412

400 16 408 469 427 469 427 469

450 18 459 532 490 532 490 532

500 20 510 583 535 583 535 583

600 24 612 690 643 690 643 690

Notes: (1) The material used for these gaskets is mainly joint sheets.

(2) This dimension chart is the same as JPI-7S-16-98 “Dimensions for non-metallic gaskets forpipes” large male & female dimensions and large tongue & groove dimensions.

(3) Applicable flanges are JPI-7S-15-99.

(4) It is better to avoid using the nominal size values in brackets if possible.

For ASME B16.5 FlangesFor ASME B16.47 Series B Flanges VorteaxTM Gasket with Outer Ring

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Nominal Pipe SizeClass 150 Class 300 Class 400

Gasket innerdiameterD2

Gasket outerdiameterD3

Outer ring outerdiameterD4

Gasket innerdiameterD2

Gasket outerdiameterD3

Outer ring outerdiameterD4

Gasket innerdiameterD2

Gasket outerdiameterD3

Outer ring outerdiameterD4A B

Dimension Chart 6 Unit : A

15 1／2 19.0 31.8 47.8 19.0 31.8 54.1 19.0 31.8 54.120 3／4 25.4 39.6 57.2 25.4 39.6 66.8 25.4 39.6 66.825 1 31.8 47.8 66.8 31.8 47.8 73.2 31.8 47.8 73.2(32) (11／4) 47.8 60.5 76.2 47.8 60.5 82.6 47.8 60.5 82.640 11／2 54.1 69.8 85.9 54.1 69.8 95.2 54.1 69.8 95.250 2 69.8 85.9 104.9 69.8 85.9 111.3 69.8 85.9 111.265 21／2 82.6 98.6 124.0 82.6 98.6 130.3 82.6 98.6 130.380 3 101.6 120.6 136.7 101.6 120.6 149.4 101.6 120.6 149.4(90) (31／2) 114.3 133.3 161.9 114.3 133.3 165.1 114.3 133.3 161.9100 4 127.0 149.4 174.8 127.0 149.4 181.1 120.6 149.4 177.8(125) (5) 155.7 177.8 196.8 155.7 177.8 215.9 147.6 177.8 212.9150 6 182.6 209.6 222.2 182.6 209.6 251.0 174.8 209.6 247.6200 8 233.4 263.7 279.4 233.4 263.7 308.1 225.6 263.7 304.8250 10 287.3 317.5 339.9 287.3 317.5 362.0 274.6 317.5 358.9300 12 339.9 374.6 409.7 339.9 374.6 422.4 327.2 374.6 419.1350 14 371.6 406.4 450.8 371.6 406.4 485.9 362.0 406.4 482.6400 16 422.4 463.6 514.4 422.4 463.6 539.8 412.8 463.6 536.7450 18 474.7 527.0 549.4 474.7 527.0 596.9 469.9 527.0 593.8500 20 525.5 577.8 606.6 525.5 577.8 654.0 520.7 577.8 647.7600 24 628.6 685.8 717.6 628.6 685.8 774.7 628.6 685.8 768.4650 26 673.1 698.5 725.4 673.1 711.2 771.7 666.8 698.5 746.3700 28 723.9 749.3 776.2 723.9 762.0 825.5 714.5 749.3 800.1750 30 774.7 800.1 827.0 774.7 812.8 886.0 765.3 806.4 857.2800 32 825.5 850.9 881.1 825.5 863.6 939.8 812.8 860.6 911.4850 34 876.3 908.0 935.0 876.3 914.4 993.9 866.9 911.4 962.2900 36 927.1 958.8 987.6 927.1 965.2 1,047.8 917.7 965.2 1,022.4950 38 974.6 1,009.6 1,044.7 1,009.6 1,047.8 1,098.6 971.6 1,022.4 1,073.21,000 40 1,022.4 1,063.8 1,095.5 1,060.4 1,098.6 1,149.6 1,025.6 1,076.4 1,127.21,050 42 1,079.5 1,114.6 1,146.3 1,079.5 1,117.6 1,200.2 1,076.4 1,127.2 1,178.01,100 44 1,124.0 1,165.4 1,197.1 1,162.0 1,200.2 1,251.0 1,130.3 1,181.1 1,231.91,150 46 1,181.1 1,224.0 1,255.8 1,216.2 1,254.2 1,317.8 1,193.8 1,244.6 1,289.01,200 48 1,231.9 1,270.0 1,306.6 1,231.9 1,270.0 1,368.6 1,244.6 1,295.4 1,346.2(1,250) (50) 1,282.7 1,325.6 1,357.4 1,317.8 1,355.9 1,419.4 1,295.4 1,346.2 1,403.4(1,300) (52) 1,333.5 1,376.4 1,408.2 1,368.6 1,406.7 1,470.2 1,346.2 1,397.0 1,454.21,350 54 1,384.3 1,422.4 1,463.8 1,384.3 1,422.4 1,530.4 1,403.4 1,454.2 1,517.6(1,400) (56) 1,435.1 1,470.2 1,514.6 1,479.6 1,524.0 1,593.8 1,454.2 1,505.0 1,568.4(1,450) (58) 1,485.9 1,522.5 1,579.6 1,535.2 1,573.3 1,655.8 1,505.0 1,555.8 1,619.21,500 60 1,536.7 1,573.3 1,630.4 1,536.7 1,574.8 1,706.6 1,568.4 1,619.2 1,682.8

Notes: (1) This dimension chart is the same as ASME B16.20-2000except 3-1/2” which is not listed in ASME B16.20-2000. It isalso the same as JPI-7S-41-2005.

(2) Applicable flanges are ASME B16.5 flanges and ASMEB16.47 series B flanges. However, these can also be usedfor JPI-7S-15, JPI-7S-43 series B and API-Std-605 flanges.

(3) Dimensions inside of the bold line are not suitable for slip-on welded flanges. Use weld-neck flanges or socket-weldedflanges. If slip-on flanges are used, gaskets as perdimension on page 71 are recommended.

(4) For class 900 and above, please use weld-neck flanges.

(5) For bolting materials, high-tension bolts such as B7 (SNB-7) orabove are required.

(6) With inner and outer rings is recommended for class 900, 1500 and2500. Also for 26” and above.

(7) Nominal pipe size shown in brackets shall be avoided as much aspossible.

(8) The gasket outer diameter for the types outer ring indicates theshoulder dimensions of the gasket excluding spring layers.

Standard

Dim

ension Charts

71

┃Recommended Dimensions for Slip-on Welded Flanges┃

19.0 31.8 54.1 19.0 31.8 63.5 19.0 31.8 63.5 19.0 31.8 69.8 15 1／225.4 39.6 66.8 25.4 39.6 69.8 25.4 39.6 69.8 25.4 39.6 76.2 20 3／431.8 47.8 73.2 31.8 47.8 79.5 31.8 47.8 79.5 31.8 47.8 85.9 25 147.8 60.5 82.6 39.6 60.5 88.9 39.6 60.4 88.9 39.6 60.5 104.9 (32) (11／4)54.1 69.8 95.2 47.8 69.8 98.6 47.8 69.8 98.6 47.8 69.8 117.6 40 11／269.8 85.9 111.3 58.7 85.9 143.0 58.7 85.9 143.0 58.7 85.9 146.0 50 282.6 98.6 130.3 69.8 98.6 165.1 69.8 98.6 165.1 69.8 98.6 168.4 65 21／2101.6 120.6 149.4 95.2 120.6 168.4 92.2 120.6 174.8 92.2 120.6 196.8 80 3114.3 133.3 161.9 ─ ─ ─ ─ ─ ─ ─ ─ ─ (90) (31／2)120.6 149.4 193.8 120.6 149.4 206.5 117.6 149.6 209.6 117.6 149.4 235.0 100 4147.6 177.8 241.3 147.6 177.8 247.6 143.0 177.8 254.0 143.0 177.8 279.4 (125) (5)174.8 209.6 266.7 174.8 209.6 289.1 171.4 209.6 282.7 171.4 209.6 317.5 150 6225.6 263.7 320.8 222.2 257.3 358.9 215.9 257.3 352.6 215.9 257.3 387.4 200 8274.6 317.5 400.0 276.4 311.2 435.1 266.7 311.2 435.1 270.0 311.2 476.2 250 10327.2 374.6 457.2 323.8 368.3 498.6 323.8 368.3 520.7 317.5 368.3 549.4 300 12362.0 406.4 492.2 355.6 400.0 520.7 362.0 400.0 577.8 ─ ─ ─ 350 14412.8 463.6 565.2 412.8 457.2 574.8 406.4 457.2 641.4 ─ ─ ─ 400 16469.9 527.0 612.9 463.6 520.7 638.3 463.6 520.7 704.8 ─ ─ ─ 450 18520.7 577.8 682.8 520.7 571.5 698.5 514.4 571.5 755.6 ─ ─ ─ 500 20628.6 685.8 790.7 628.6 679.4 838.2 616.0 679.4 901.7 ─ ─ ─ 600 24663.7 714.5 765.3 692.2 749.3 838.2 ─ ─ ─ ─ ─ ─ 650 26704.8 755.6 819.2 743.0 800.1 901.7 ─ ─ ─ ─ ─ ─ 700 28778.0 828.8 879.6 806.4 857.2 958.8 ─ ─ ─ ─ ─ ─ 750 30831.8 882.6 933.4 863.6 914.4 1,016.0 ─ ─ ─ ─ ─ ─ 800 32889.0 939.8 997.0 920.8 971.6 1,073.2 ─ ─ ─ ─ ─ ─ 850 34939.8 990.6 1,047.8 946.2 997.0 1,124.0 ─ ─ ─ ─ ─ ─ 900 36990.6 1,041.4 1,104.9 1,035.0 1,085.8 1,200.2 ─ ─ ─ ─ ─ ─ 950 381,047.8 1,098.6 1,155.7 1,098.6 1,149.4 1,251.0 ─ ─ ─ ─ ─ ─ 1,000 401,104.9 1,155.7 1,219.2 1,149.4 1,200.2 1,301.8 ─ ─ ─ ─ ─ ─ 1,050 421,162.0 1,212.8 1,270.0 1,206.5 1,257.3 1,368.6 ─ ─ ─ ─ ─ ─ 1,100 441,212.8 1,263.6 1,327.2 1,270.0 1,320.8 1,435.1 ─ ─ ─ ─ ─ ─ 1,150 461,270.0 1,320.8 1,390.6 1,320.8 1,371.6 1,485.9 ─ ─ ─ ─ ─ ─ 1,200 481,320.8 1,371.6 1,447.8 ─ ─ ─ ─ ─ ─ ─ ─ ─ (1,250) (50)1,371.6 1,422.4 1,498.6 ─ ─ ─ ─ ─ ─ ─ ─ ─ (1,300) (52)1,428.8 1,479.6 1,555.8 ─ ─ ─ ─ ─ ─ ─ ─ ─ 1,350 541,479.6 1,530.4 1,612.9 ─ ─ ─ ─ ─ ─ ─ ─ ─ (1,400) (56)1,536.7 1,587.5 1,663.7 ─ ─ ─ ─ ─ ─ ─ ─ ─ (1,450) (58)1,593.8 1,644.6 1,733.6 ─ ─ ─ ─ ─ ─ ─ ─ ─ 1,500 60

Class 600 Class 900 Class 1500 Class 2500

Gasket innerdiameter D2

Gasket outerdiameterD3

Outer ringouter diameterD4

Gasket innerdiameter D2

Gasket outerdiameterD3

Outer ringouter diameterD4

Gasket innerdiameter D2

Gasket outerdiameterD3

Outer ringouter diameterD4

Gasket innerdiameter D2

Gasket outerdiameterD3

Outer ringouter diameterD4 A B

Unit : A

Nominal Pipe

Size

Nominal Pipe SizeClass 150 Class 300・400・600 Class 900・1500

Gasket innerdiameterD2

Gasket outerdiameterD3

Outer ring outerdiameterD4

Gasket innerdiameterD2

Gasket outerdiameterD3

Outer ring outerdiameterD4

Gasket innerdiameterD2

Gasket outerdiameterD3

Outer ring outerdiameterD4A B

Unit : A

15 1／2 24.2 34.9 49.1 24.2 34.9 55.5 24.2 34.9 65.0

20 3／4 29.7 42.9 58.7 29.7 42.9 68.1 29.7 42.9 71.4

25 1 36.5 50.8 68.2 36.5 50.8 74.5 36.5 50.8 80.9

For ASME B16.5 FlangesFor ASME B16.47 Series B Flanges VortexTM Gasket with Inner and Outer Ring

72

Sta

ndar

dD

imen

sion

Cha

rts

Nominal Pipe SizeClass 150 Class 300 Class 400

Inner ringinnerdiameter D1

Gasketinnerdiameter D2

Gasket outerdiameter

D3

Outer ringouterdiameter D4

Inner ringinnerdiameter D1

Gasketinnerdiameter D2

Gasket outerdiameter D3

Outer ringouterdiameter D4

Inner ringinnerdiameter D1

Gasketinnerdiameter D2

Gasketouterdiameter D3

Outer ringouterdiameter D4A B

Dimension Chart 7 Unit : A

15 1／2 14.2 19.1 31.8 47.8 14.2 19.1 31.8 54.1 14.2 19.1 31.8 54.120 3／4 20.6 25.4 39.6 57.2 20.6 25.4 39.6 66.8 20.6 25.4 39.6 66.825 1 26.9 31.8 47.8 66.8 26.9 31.8 47.8 73.2 26.9 31.8 47.8 73.2(32) (11／4) 38.1 47.8 60.5 76.2 38.1 47.8 60.5 82.6 38.1 47.8 60.5 82.640 11／2 44.5 54.1 69.9 85.9 44.5 54.1 69.9 95.3 44.5 54.1 69.9 95.350 2 55.6 69.9 85.9 104.9 55.6 69.9 85.9 111.3 55.6 69.9 85.9 111.365 21／2 66.5 82.6 98.6 124.0 66.5 82.6 98.6 130.3 66.5 82.6 98.6 130.380 3 81.0 101.6 120.7 136.7 81.0 101.6 120.7 149.4 78.7 101.6 120.7 149.4(90) (31／2) 93.7 114.3 133.3 161.9 93.7 114.3 133.3 165.1 93.7 114.3 133.3 161.9100 4 106.4 127.0 149.4 174.8 106.4 127.0 149.4 181.1 102.6 120.7 149.4 177.8(125) (5) 131.8 155.7 177.8 196.9 131.8 155.7 177.8 215.9 128.3 147.6 177.8 212.9150 6 157.2 182.6 209.6 222.3 157.2 182.6 209.6 251.0 154.9 174.8 209.6 247.7200 8 215.9 233.4 263.7 279.4 215.9 233.4 263.7 308.1 205.7 225.6 263.7 304.8250 10 268.2 287.3 317.5 339.9 268.2 287.3 317.5 362.0 255.3 274.6 317.5 358.9300 12 317.5 339.9 374.7 409.7 317.5 339.9 374.7 422.4 307.3 327.2 374.7 419.1350 14 349.3 371.6 406.4 450.9 349.3 371.6 406.4 485.9 342.9 362.0 406.4 482.6400 16 400.1 422.4 463.6 514.4 400.1 422.4 463.6 539.8 389.9 412.8 463.6 536.7450 18 449.3 474.7 527.1 549.4 449.3 474.7 527.1 596.9 438.2 469.9 527.1 593.9500 20 500.1 525.5 577.9 606.6 500.1 525.5 577.9 654.1 489.0 520.7 577.9 647.7600 24 603.3 628.7 685.8 717.6 603.3 628.7 685.8 774.7 590.6 628.7 685.8 768.4650 26 654.1 673.1 698.5 725.4 654.1 673.1 711.2 771.7 654.1 666.8 698.5 746.3700 28 704.9 723.9 749.3 776.2 704.9 723.9 762.0 825.5 701.8 714.5 749.3 800.1750 30 755.7 774.7 800.1 827.0 755.7 774.7 812.8 886.0 752.6 765.3 806.5 857.3800 32 806.5 825.5 850.9 881.1 806.5 825.5 863.6 939.8 800.1 812.8 860.6 911.4850 34 857.3 876.3 908.1 935.0 857.3 876.3 914.4 993.9 850.9 866.9 911.4 962.2900 36 908.1 927.1 958.9 987.6 908.1 927.1 965.2 1,047.8 898.7 917.7 965.2 1,022.4950 38 958.9 974.6 1,009.7 1,044.7 971.6 1,009.7 1,047.8 1,098.6 952.5 971.6 1,022.4 1,073.21,000 40 1,009.7 1,022.4 1,063.8 1,095.5 1,022.4 1,060.5 1,098.6 1,149.4 1,000.3 1,025.7 1,076.5 1,127.31,050 42 1,060.5 1,079.5 1,114.6 1,146.3 1,085.9 1,111.3 1,149.4 1,200.2 1,051.1 1,076.5 1,127.3 1,178.11,100 44 1,111.3 1,124.0 1,165.4 1,197.1 1,124.0 1,162.1 1,200.2 1,251.0 1,104.9 1,130.3 1,181.1 1,231.91,150 46 1,162.1 1,181.1 1,224.0 1,255.8 1,178.1 1,216.2 1,254.3 1,317.8 1,168.4 1,193.8 1,244.6 1,289.11,200 48 1,212.9 1,231.9 1,270.0 1,306.6 1,231.9 1,263.7 1,311.4 1,368.6 1,206.5 1,244.6 1,295.4 1,346.2(1,250) (50) 1,263.7 1,282.7 1,325.6 1,357.4 1,267.0 1,317.8 1,355.9 1,419.4 1,257.3 1,295.4 1,346.2 1,403.4(1,300) (52) 1,314.5 1,333.5 1,376.4 1,408.2 1,317.8 1,368.6 1,406.7 1,470.2 1,308.1 1,346.2 1,397.0 1,454.21,350 54 1,365.3 1,384.3 1,422.4 1,463.8 1,365.3 1,403.4 1,454.2 1,530.4 1,352.6 1,403.4 1,454.2 1,517.7(1,400) (56) 1,422.4 1,444.8 1,477.8 1,514.6 1,428.8 1,479.6 1,524.0 1,593.9 1,403.4 1,454.2 1,505.0 1,568.5(1,450) (58) 1,478.0 1,500.4 1,528.8 1,579.6 1,484.4 1,535.2 1,573.3 1,655.8 1,454.2 1,505.0 1,555.8 1,619.31,500 60 1,535.2 1,557.3 1,586.0 1,630.4 1,557.3 1,589.0 1,630.4 1,706.6 1,517.7 1,568.5 1,619.3 1,682.8

Notes: (1) This dimension chart is the same as ASME B16.20-1998except 3-1/2” which is not listed in ASME B16.20-1998. It isalso the same as JPI-7S-41-2005.

(2) Applicable flanges are ASME B16.5 flanges and ASMEB16.47 series B flanges. However, these can also be usedfor JPI-7S-15, JPI-7S-43 series B and API-Std-605 flanges.

(3) Dimensions inside of the bold line are not suitable for slip-on welded flanges. Use weld-neck flanges or socket-weldedflanges. If slip-on flanges are used, gaskets as perdimension on page 73 are recommended.

(4) For class 900 and above, please use weld-neck flanges.

(5) For bolting materials, high-tension bolts such as B7 (SNB-7) orabove are required.

(6) When used for slip-on flanges, please pay attention to thedimensions since the inner diameter of inner ring may be smallerthan the flange inner diameter. To avoid this kind of problem, weld-neck flanges are recommended.

(7) The gasket outer diameter for the types inner ring indicates theshoulder dimensions of the gasket excluding spring layers.

Standard

Dim

ension Charts

73

Inner ringinnerdiameterD1

Gasketinnerdiameter D2

Gasketouterdiameter D3

Outer ringouterdiameterD4

Inner ringinnerdiameterD1

Gasketinnerdiameter D2

Gasketouterdiameter D3

Outer ringouterdiameterD4

Inner ringinnerdiameterD1

Gasketinnerdiameter D2

Gasketouterdiameter D3

Outer ringouterdiameterD4

Inner ringinnerdiameterD1

Gasketinnerdiameter D2

Gasketouterdiameter D3

Outer ringouterdiameterD4

┃Recommended Dimensions for Slip-on Welded Flanges┃

14.2 19.1 31.8 54.1 14.2 19.1 31.8 63.5 14.2 19.1 31.8 63.5 14.2 19.1 31.8 69.9 15 1／220.6 25.4 39.6 66.8 20.6 25.4 39.6 69.9 20.6 25.4 39.6 69.9 20.6 25.4 39.6 76.2 20 3／426.9 31.8 47.8 73.2 26.9 31.8 47.8 79.5 26.9 31.8 47.8 79.5 26.9 31.8 47.8 85.9 25 138.1 47.8 60.5 82.6 33.3 39.6 60.5 88.9 33.3 39.6 60.5 88.9 33.3 39.6 60.5 104.9 (32) (11／4)44.5 54.1 69.9 95.3 41.4 47.8 69.9 98.6 41.4 47.8 69.9 98.6 41.4 47.8 69.9 117.6 40 11／255.6 69.9 85.9 111.3 52.3 58.7 85.9 143.0 52.3 58.7 85.9 143.0 52.3 58.7 85.9 146.1 50 266.5 82.6 98.6 130.3 63.5 69.9 98.6 165.1 63.5 69.9 98.6 165.1 63.5 69.9 98.6 168.4 65 21／278.7 101.6 120.7 149.4 78.7 95.3 120.7 168.4 78.7 92.2 120.7 174.8 78.7 92.2 120.7 196.9 80 393.7 114.3 133.3 161.9 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ (90) (31/2)102.6 120.7 149.4 193.8 102.6 120.7 149.4 206.5 97.8 117.6 149.4 209.6 97.8 117.6 149.4 235.0 100 4128.3 147.6 177.8 241.3 128.3 147.6 177.8 247.7 124.5 143.0 177.8 254.0 124.5 143.0 177.8 279.4 (125) (5)154.9 174.8 209.6 266.7 154.9 174.8 209.6 289.1 147.3 171.5 209.6 282.7 147.3 171.5 209.6 317.5 150 6205.7 225.6 263.7 320.8 196.9 222.3 257.3 358.9 196.9 215.9 257.3 352.6 196.9 215.9 257.3 387.4 200 8255.3 274.6 317.5 400.1 246.1 276.4 311.2 435.1 246.1 266.7 311.2 435.1 246.1 270.0 311.2 476.3 250 10307.3 327.2 374.7 457.2 292.1 323.9 368.3 498.6 292.1 323.9 368.3 520.7 292.1 317.5 368.3 549.4 300 12342.9 362.0 406.4 492.3 320.8 355.6 400.1 520.7 320.8 362.0 400.1 577.9 ─ ─ ─ ─ 350 14389.9 412.8 463.6 565.2 374.7 412.8 457.2 574.8 368.3 406.4 457.2 641.4 ─ ─ ─ ─ 400 16438.2 469.9 527.1 612.9 425.5 463.6 520.7 638.3 425.5 463.6 520.7 704.9 ─ ─ ─ ─ 450 18489.0 520.7 577.9 682.8 482.6 520.7 571.5 698.5 476.3 514.4 571.5 755.7 ─ ─ ─ ─ 500 20590.6 628.7 685.8 790.7 590.6 628.7 679.5 838.2 577.9 616.0 679.5 901.7 ─ ─ ─ ─ 600 24644.7 663.7 714.5 765.3 666.8 692.2 749.3 838.2 ─ ─ ─ ─ ─ ─ ─ ─ 650 26685.8 704.9 755.7 819.2 717.6 743.0 800.1 901.7 ─ ─ ─ ─ ─ ─ ─ ─ 700 28752.6 778.0 828.8 879.6 781.1 806.5 857.3 958.9 ─ ─ ─ ─ ─ ─ ─ ─ 750 30793.8 831.9 882.7 933.5 838.2 863.6 914.4 1,016.0 ─ ─ ─ ─ ─ ─ ─ ─ 800 32850.9 889.0 939.8 997.0 895.4 920.8 971.6 1,073.2 ─ ─ ─ ─ ─ ─ ─ ─ 850 34901.7 939.8 990.6 1,047.8 920.8 946.2 997.0 1,124.0 ─ ─ ─ ─ ─ ─ ─ ─ 900 36952.5 990.6 1,041.4 1,104.9 1,009.7 1,035.1 1,085.9 1,200.2 ─ ─ ─ ─ ─ ─ ─ ─ 950 381,009.7 1,047.8 1,098.6 1,155.7 1,060.5 1,098.6 1,149.4 1,251.0 ─ ─ ─ ─ ─ ─ ─ ─ 1,000 401,066.8 1,104.9 1,155.7 1,219.2 1,111.3 1,149.4 1,200.2 1,301.8 ─ ─ ─ ─ ─ ─ ─ ─ 1,050 421,111.3 1,162.1 1,212.9 1,270.0 1,155.7 1,206.5 1,257.3 1,368.6 ─ ─ ─ ─ ─ ─ ─ ─ 1,100 441,162.1 1,212.9 1,263.7 1,327.2 1,219.2 1,270.0 1,320.8 1,435.1 ─ ─ ─ ─ ─ ─ ─ ─ 1,150 461,219.2 1,270.0 1,320.8 1,390.7 1,270.0 1,320.8 1,371.6 1,485.9 ─ ─ ─ ─ ─ ─ ─ ─ 1,200 481,270.0 1,320.8 1,371.6 1,447.8 ─ ─ ─ ─ ─ ── ─ ─ ─ ─ ─ (1,250) (50)1,320.8 1,371.6 1,422.4 1,498.6 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ (1,300) (52)1,378.0 1,428.8 1,479.6 1,555.8 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ 1,350 541,428.8 1,479.6 1,530.4 1,612.9 ─ ─ ─ ─ ── ─ ─ ─ ─ ─ ─ (1,400) (56)1,473.2 1,536.7 1,587.5 1,663.7 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ (1,450) (58)1,530.4 1,593.9 1,644.7 1,733.6 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ 1,500 60

Class 600 Class 900 Class 1500 Class 2500

A B

Unit : A

Nominal Pipe

Size

Nominal Pipe SizeClass 150 Class 300・400・600 Class 900・1500

A B

Unit : A

15 1／2 18.2 24.2 34.9 49.1 18.2 24.2 34.9 55.5 18.2 24.2 34.9 65.0

20 3／4 23.0 29.7 42.9 58.7 23.0 29.7 42.9 68.1 23.0 29.7 42.9 71.4

25 1 30.0 36.5 50.8 68.2 30.0 36.5 50.8 74.5 30.0 36.5 50.8 80.9

Inner ringinnerdiameterD1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ringouterdiameterD4

Inner ringinnerdiameterD1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ringouterdiameterD4

Inner ringinnerdiameterD1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ringouterdiameterD4

For ASME B16.47 Series A FlangesFor MSS-SP-44 Flanges VortexTM Gasket with Inner and Outer Ring

74

Sta

ndar

dD

imen

sion

Cha

rts

Nominal

Pipe Size

Class 300Class 150

Dimension Chart 8 Unit : A

26 654.1 673.1 704.9 774.7 654.1 685.8 736.6 835.2

28 704.9 723.9 755.7 831.9 704.9 736.6 787.4 898.7

30 755.7 774.7 806.5 882.7 755.7 793.8 844.6 952.5

32 806.5 825.5 860.6 939.8 806.5 850.9 901.7 1,006.6

34 857.3 876.3 911.4 990.6 857.3 901.7 952.5 1,057.4

36 908.1 927.1 968.5 1,047.8 908.1 955.8 1,006.6 1,117.6

38 958.9 977.9 1,019.3 1,111.3 952.5 977.9 1,016.0 1,054.1

40 1,009.7 1,028.7 1,070.1 1,162.1 1,003.3 1,022.4 1,070.1 1,114.6

42 1,060.5 1,079.5 1,124.0 1,219.2 1,054.1 1,073.2 1,120.9 1,165.4

44 1,111.3 1,130.3 1,178.1 1,276.4 1,104.9 1,130.3 1,181.1 1,219.2

46 1,162.1 1,181.1 1,228.9 1,327.2 1,152.7 1,178.1 1,228.9 1,273.3

48 1,212.9 1,231.9 1,279.7 1,384.3 1,209.8 1,235.2 1,286.0 1,324.1

50 1,263.7 1,282.7 1,333.5 1,435.1 1,244.6 1,295.4 1,346.2 1,378.0

52 1,314.5 1,333.5 1,384.3 1,492.3 1,320.8 1,346.2 1,397.0 1,428.8

54 1,358.9 1,384.3 1,435.1 1,549.4 1,352.6 1,403.4 1,454.2 1,492.3

56 1,409.7 1,435.1 1,485.9 1,606.6 1,403.4 1,454.2 1,505.0 1,543.1

58 1,460.5 1,485.9 1,536.7 1,663.7 1,447.8 1,511.3 1,562.1 1,593.9

60 1,511.3 1,536.7 1,587.5 1,714.5 1,524.0 1,562.1 1,612.9 1,644.7

Notes: (1) This dimension chart is the same as the dimensions ofASME B16.20-1998.

(2) Applicable flanges are ANSI/ASME B16.47 Series A andMSS-SP-44 flanges. This can also be used for JPI-7S-43Series A flanges.

(3) Please use weld-neck flanges.

(4) The gasket outer diameter for the types inner ring indicates theshoulder dimensions of the gasket excluding spring layers.

Inner ring inner diameter

D1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ring outerdiameter D4

Inner ring inner diameter

D1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ring outerdiameter D4

Nominal

Pipe Size

Class 900Class 400 Class 600

Inner ring inner diameter D1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ringouter diameter D4

Inner ring inner diameter D1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ringouter diameter D4

Inner ring inner diameter D1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ringouter diameter D4

26 660.4 685.8 736.6 831.9 647.7 685.8 736.6 866.9 660.4 685.8 736.6 882.7

28 711.2 736.6 787.4 892.3 698.5 736.6 787.4 914.4 711.2 736.6 787.4 946.2

30 755.7 793.8 844.6 946.2 755.7 793.8 844.6 971.6 768.4 793.8 844.6 1,009.7

32 812.8 850.9 901.7 1,003.3 812.8 850.9 901.7 1,022.4 812.8 850.9 901.7 1,073.2

34 863.6 901.7 952.5 1,054.1 863.6 901.7 952.5 1,073.2 863.6 901.7 952.5 1,136.7

36 917.7 955.8 1,006.6 1,117.6 917.7 955.8 1,006.6 1,130.3 920.8 958.8 1,009.7 1,200.2

38 952.5 971.6 1,022.4 1,073.2 952.5 990.6 1,041.4 1,104.9 1,009.7 1,035.1 1,085.9 1,200.2

40 1,000.3 1,025.7 1,076.5 1,127.3 1,009.7 1,047.8 1,098.6 1,155.7 1,060.5 1,098.6 1,149.4 1,251.0

42 1,051.1 1,076.5 1,127.3 1,178.1 1,066.8 1,104.9 1,155.7 1,219.2 1,111.3 1,149.4 1,200.2 1,301.8

44 1,104.9 1,130.3 1,181.1 1,231.9 1,111.3 1,162.1 1,212.9 1,270.0 1,155.7 1,206.5 1,257.3 1,368.6

46 1,168.4 1,193.8 1,244.6 1,289.1 1,162.1 1,212.9 1,263.7 1,327.2 1,219.2 1,270.0 1,320.8 1,435.1

48 1,206.5 1,244.6 1,295.4 1,346.2 1,219.2 1,270.0 1,320.8 1,390.7 1,270.0 1,320.8 1,371.6 1,485.9

50 1,257.3 1,295.4 1,346.2 1,403.4 1,270.0 1,320.8 1,371.6 1,447.8 ─ ─ ─ ─

52 1,308.1 1,346.2 1,397.0 1,454.2 1,320.8 1,371.6 1,422.4 1,498.6 ─ ─ ─ ─

54 1,352.6 1,403.4 1,454.2 1,517.7 1,378.0 1,428.8 1,479.6 1,555.8 ─ ─ ─ ─

56 1,403.4 1,454.2 1,505.0 1,568.5 1,428.8 1,479.6 1,530.4 1,612.9 ─ ─ ─ ─

58 1,454.2 1,505.0 1,555.8 1,619.3 1,473.2 1,536.7 1,587.5 1,663.7 ─ ─ ─ ─

60 1,517.7 1,568.5 1,619.3 1,682.8 1,530.4 1,593.9 1,644.7 1,733.6 ─ ─ ─ ─

For ASME B16.5 FlangesFor JPI-7S-15 Flanges VortexTM Gasket Standard Type/ With Inner Ring Type

75

Standard

Dim

ension Charts

Dimension Chart 9 Unit : A

Notes: (1) *Small: For small male & female faces or small tongue &groove face flanges.

*Large: For large male & female faces or large tongue &groove face flanges.

(2) Applicable flanges are ASME B16.5 and JPI-7S-15.

Depth of the face is preferably more than 5.5A.

(3) No large M&F and large T&G face are stipulated for class150 flanges.

(4) For small M&F and small T&G faces, Vortex gaskets are notadvisable due to its narrow gasket width. This chart ismerely for reference.

(5) The dimensions for large M&F and large T&G faces in thischart are the same as JPI-7S-41-90. The dimensions forsmall M&F and small T&G faces are the same as thedimensions shown in commentary part of JPI-7S-41-85.

(6) For large M&F faces of class 900 and above, with inner ringtype is recommended irrespective of the filler material.

(7) For small M&F faces, with inner ring type is recommendedirrespective of the filler material.

(8) For bolting materials, high-tension bolts such as B7 (SNB7) or aboveare required.

Nominal Pipe SizeInner ring inner diameter

D1Gasket inner

diameter

D2

Gasket outer diameter

D3

A B 150・300 400・600 900 1500 2500 Small * Large *

15 1／2 14.2 14.2 14.2 14.2 14.2 25.1 35.3 35.4

20 3／4 20.6 20.6 20.6 20.6 20.6 33.0 43.2 43.2

25 1 26.9 26.9 26.9 26.9 26.9 37.8 48.0 51.1

32 11／4 38.1 38.1 33.3 33.3 33.3 47.2 57.5 63.8

40 11／2 44.4 44.4 41.4 41.4 41.4 53.5 63.9 73.5

50 2 55.6 55.6 52.3 52.3 52.3 72.6 82.9 92.5

65 21／2 66.5 66.5 63.5 63.5 63.5 85.3 95.6 105.2

80 3 81.0 81.0 81.0 81.0 81.0 107.6 117.9 127.3

90 31／2 93.7 93.7 ─ ─ ─ 120.3 130.6 140.0

100 4 106.4 106.4 106.4 106.4 106.4 131.2 144.8 157.6

125 5 131.8 131.8 131.8 131.8 131.8 160.0 173.4 186.3

150 6 157.2 157.2 157.2 157.2 157.2 190.2 203.6 216.3

200 8 215.9 209.6 209.6 206.2 200.2 237.7 254.1 270.0

250 10 268.2 260.4 260.4 257.8 247.6 285.7 304.9 323.9

300 12 317.5 317.5 314.5 314.5 292.1 342.9 362.0 381.0

350 14 349.2 349.2 342.9 339.8 ─ 374.6 393.8 412.8

400 16 400.0 400.0 393.7 387.4 ─ 425.4 447.8 469.9

450 18 449.3 449.3 444.5 438.2 ─ 488.9 511.3 533.4

500 20 500.1 500.1 495.3 489.0 ─ 533.4 558.9 584.2

600 24 603.2 603.2 603.2 577.8 ─ 641.8 666.3 691.7

Tongue & Groove Male & Female

For Taylor Forge andLadish Flanges VortexTM Gasket with Inner and Outer Ring

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Nominal Pipe

SizeLadish Class 300Ladish Class 150

Taylor Forge Class 350Taylor Forge Class 175

Dimension Chart 10 Unit : A

26 660 680 703 740 660 680 712 752

28 711 731 754 791 711 731 763 803

30 762 782 809 848 762 782 814 860

32 813 833 860 899 813 833 865 911

34 864 884 915 952 864 884 916 962

36 914 934 965 1,003 914 934 966 1,026

38 965 985 1,016 1,054 965 985 1,017 1,076

40 1,016 1,041 1,074 1,105 1,016 1,041 1,081 1,127

42 1,067 1,092 1,130 1,165 1,067 1,092 1,132 1,184

44 1,118 1,143 1,181 1,216 1,118 1,143 1,183 1,245

46 1,168 1,193 1,231 1,267 1,168 1,193 1,233 1,295

48 1,219 1,244 1,282 1,318 1,219 1,244 1,284 1,346

50 1,270 1,295 1,333 1,368 ─ ─ ─ ─

52 1,321 1,346 1,386 1,426 1,321 1,351 1,401 1,457

54 1,372 1,397 1,437 1,476 1,372 1,402 1,452 1,508

60 1,524 1,549 1,589 1,629 1,524 1,554 1,604 1,661

66 1,676 1,706 1,746 1,781 1,702 1,742 1,782 1,842

72 1,829 1,859 1,899 1,946 1,854 1,894 1,934 1,994

84 2,162 2,202 2,232 2,292 2,197 2,237 2,267 2,327

96 2,467 2,507 2,537 2,597 2,512 2,552 2,582 2,642

Inner ring inner diameter

D1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ring outerdiameter D4

Inner ring inner diameter

D1

Gasket innerdiameter D2

Gasket outerdiameter D3

Outer ring outerdiameter D4

Notes: (1) Applicable flanges are Taylor Forge Class 175, 350, 125 and 250, Ladish Class 150 and 300.For Taylor Forge Class 150, please use Standard Dimension Chart 8.

(2) These dimension were designed by NICHIAS Corporation.

(3) Gaskets with inner and outer rings are recommended for all nominal pressures.

(4) For bolting materials, high-tension bolts such as B7 (SNB-7) or above are required.

Standard

Dim

ension Charts

77

Taylor Forge Class 250Taylor Forge Class 125

650 675 725 774 650 675 725 831

701 726 776 831 701 726 776 895

752 777 827 882 752 777 827 952

803 828 878 939 803 828 878 1,009

854 879 929 990 854 879 929 1,060

904 929 979 1,047 904 929 979 1,117

955 985 1,035 1,111 955 985 1,035 1,168

1,006 1,036 1,086 1,162 1,006 1,036 1,086 1,225

1,057 1,087 1,137 1,219 1,057 1,087 1,137 1,289

1,108 1,138 1,188 1,276 1,108 1,138 1,188 1,346

1,158 1,188 1,238 1,327 1,158 1,188 1,238 1,403

1,209 1,239 1,289 1,384 1,209 1,239 1,289 1,492

1,260 1,290 1,340 1,435 ─ ─ ─ ─

1,311 1,341 1,391 1,492 ─ ─ ─ ─

1,362 1,392 1,442 1,549 ─ ─ ─ ─

1,514 1,544 1,594 1,714 ─ ─ ─ ─

1,745 1,785 1,825 1,885 ─ ─ ─ ─

1,911 1,951 1,991 2,051 ─ ─ ─ ─

2,244 2,284 2,314 2,374 ─ ─ ─ ─

2,568 2,608 2,638 2,698 ─ ─ ─ ─

Inner ring inner diameter

D1

Gasket innerdiameter D2

Gasket outer diameter D3

Outer ring outerdiameter D4

Inner ring inner diameter

D1

Gasket innerdiameter D2

Gasket outer diameter D3

Outer ring outerdiameter D4

Ring Joint Gaskets R Rings

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Dimension Chart 11 Ring Joint Gasket Standard Dimensions Unit : A

Ring Number Pitch diameter of ring

P

Gasket Dimensions

Width of ring

W Oval

Height of ring T

Octagonal

Width of flat onOctagonal Ring

A

R-11 34.13 6.35 11.2 9.7 4.32R-12 39.69 7.92 14.2 12.7 5.23R-13 42.88 7.92 14.2 12.7 5.23R-14 44.45 7.92 14.2 12.7 5.23R-15 47.62 7.92 14.2 12.7 5.23R-16 50.80 7.92 14.2 12.7 5.23R-17 57.15 7.92 14.2 12.7 5.23R-18 60.32 7.92 14.2 12.7 5.23R-19 65.07 7.92 14.2 12.7 5.23R-20 68.28 7.92 14.2 12.7 5.23R-21 72.24 11.13 17.5 15.7 7.75R-22 82.55 7.92 14.2 12.7 5.23R-23 82.55 11.13 17.5 15.7 7.75R-24 95.25 11.13 17.5 15.7 7.75R-25 101.60 7.92 14.2 12.7 5.23R-26 101.60 11.13 17.5 15.7 7.75R-27 107.95 11.13 17.5 15.7 7.75R-28 111.12 12.70 19.0 17.5 8.66R-29 114.30 7.92 14.2 12.7 5.23R-30 117.48 11.13 17.5 15.7 7.75R-31 123.82 11.13 17.5 15.7 7.75R-32 127.00 12.70 19.0 17.5 8.66R-33 131.78 7.92 14.2 12.7 5.23R-34 131.78 11.13 17.5 15.7 7.75R-35 136.52 11.13 17.5 15.7 7.75R-36 149.22 7.92 14.2 12.7 5.23R-37 149.22 11.13 17.5 15.7 7.75R-38 157.18 15.88 22.4 20.6 10.49R-39 161.92 11.13 17.5 15.7 7.75R-40 171.45 7.92 14.2 12.7 5.23R-41 180.98 11.13 17.5 15.7 7.75R-42 190.50 19.05 25.4 23.9 12.32R-43 193.68 7.92 14.2 12.7 5.23R-44 193.68 11.13 17.5 15.7 7.75R-45 211.12 11.13 17.5 15.7 7.75R-46 211.12 12.70 19.0 17.5 8.66R-47 228.60 19.05 25.4 23.9 12.32R-48 247.65 7.92 14.2 12.7 5.23R-49 269.88 11.13 17.5 15.7 7.75R-50 269.88 15.88 22.4 20.6 10.49R-51 279.40 22.22 28.4 26.9 14.81R-52 304.80 7.92 14.2 12.7 5.23

Oval type Octagonal type

R1: When W is a 22.2250A or under, R1 is 1.59A

R1: When W is a 25.400A or under, R1 is 2.38A

Standard

Dim

ension Charts

79

Notes: (1) This chart uses the same dimensions as ASME B16.20. It is also same as JPI-7S-1998.

(2) Applicable flanges

ASME B16.5

API Spec. 6A

MSS SP-44

JPI-7S-43

JPI-7S-15

Ring Number Pitch diameter of ring

P

Gasket Dimensions

Width of ring

W Oval

Height of ring T

Octagonal

Width of flat onOctagonal Ring

A

R- 53 323.85 11.13 17.5 15.7 7.75R- 54 323.85 15.88 22.4 20.6 10.49R- 55 342.90 28.58 36.6 35.1 19.81R- 56 381.00 7.94 14.2 12.7 5.23R- 57 381.00 11.13 17.5 15.7 7.75R- 58 381.00 22.22 28.4 26.9 14.81R- 59 396.88 7.92 14.2 12.7 5.23R- 60 406.40 31.75 39.6 38.1 22.33R- 61 419.10 11.13 17.5 15.7 7.75R- 62 419.10 15.88 22.4 20.6 10.49R- 63 419.10 25.40 33.3 31.8 17.30R- 64 454.02 7.92 14.2 12.7 5.23R- 65 469.90 11.13 17.5 15.7 7.75R- 66 469.90 15.88 22.4 20.6 10.49R- 67 469.90 28.58 36.6 35.1 19.81R- 68 517.52 7.92 14.2 12.7 5.23R- 69 533.40 11.13 17.5 15.7 7.75R- 70 533.40 19.05 25.4 23.9 12.32R- 71 533.40 28.58 36.6 35.1 19.81R- 72 558.80 7.92 14.2 12.7 5.23R- 73 584.20 12.70 19.0 17.5 8.66R- 74 584.20 19.05 25.4 23.9 12.32R- 75 584.20 31.75 39.6 38.1 22.23R- 76 673.10 7.92 14.2 12.7 5.23R- 77 692.15 15.88 22.4 20.6 10.49R- 78 692.15 25.40 33.3 31.8 17.30R- 79 692.15 34.92 44.4 41.1 24.82R- 80 615.95 7.92 ─ 12.7 5.23R- 81 635.00 14.27 ─ 19.0 9.58R- 82 57.15 11.13 ─ 15.7 7.75R- 84 63.50 11.13 ─ 15.7 7.75R- 85 79.38 12.70 ─ 17.5 8.66R- 86 90.47 15.88 ─ 20.6 10.49R- 87 100.03 15.88 ─ 20.6 10.49R- 88 123.82 19.05 ─ 23.9 12.32R- 89 114.30 19.05 ─ 23.9 12.32R- 90 155.58 22.22 ─ 26.9 14.81R- 91 260.35 31.75 ─ 38.1 22.33R- 92 228.60 11.13 17.5 15.7 7.75R- 93 749.30 19.05 ─ 23.9 12.32R- 94 800.10 19.05 ─ 23.9 12.32R- 95 857.25 19.05 ─ 23.9 12.32R- 96 914.40 22.22 ─ 26.9 14.81R- 97 965.20 22.22 ─ 26.9 14.81R- 98 1,022.35 22.22 ─ 26.9 14.81R- 99 234.95 11.13 ─ 15.7 7.75R-100 749.30 28.58 ─ 35.1 19.81R-101 800.10 31.75 ─ 38.1 22.33R-102 857.25 31.75 ─ 38.1 22.33R-103 914.40 31.75 ─ 38.1 22.33R-104 965.20 34.92 ─ 41.1 24.82R-105 1,022.35 34.92 ─ 41.1 24.82

Ring Joint Gaskets API RX Rings

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Dimension Chart 12 API RX Ring Joint Dimension Chart Unit : A

Ring NumberOutside Diameter of

RingOD

Width ofRingA

Width ofFlatC

Height ofOutside Bevel

D

Height of RingH

Radius of RingR1

Hole Sizeφd

RX- 20 76.20 8.73 4.62 3.18 19.05 1.5RX- 23 93.27 11.91 6.45 4.24 25.40 1.5RX- 24 105.97 11.91 6.45 4.24 25.40 1.5RX- 25 109.54 8.73 4.62 3.18 19.05 1.5RX- 26 111.92 11.91 6.45 4.24 25.40 1.5RX- 27 118.27 11.91 6.45 4.24 25.40 1.5RX- 31 134.54 11.91 6.45 4.24 25.40 1.5RX- 35 147.24 11.91 6.45 4.24 25.40 1.5RX- 37 159.94 11.91 6.45 4.24 25.40 1.5RX- 39 172.64 11.91 6.45 4.24 25.40 1.5RX- 41 191.69 11.91 6.45 4.24 25.40 1.5RX- 44 204.39 11.91 6.45 4.24 25.40 1.5RX- 45 221.85 11.91 6.45 4.24 25.40 1.5RX- 46 222.25 13.49 6.68 4.78 28.58 1.5RX- 47 245.27 19.84 10.33 6.88 41.28 2.3RX- 49 280.59 11.91 6.45 4.24 25.40 1.5RX- 50 283.37 16.67 8.51 5.28 31.75 1.5RX- 53 334.57 11.91 6.45 4.24 25.40 1.5RX- 54 337.34 16.67 8.51 5.28 31.75 1.5RX- 57 391.72 11.91 6.45 4.24 25.40 1.5RX- 63 441.72 26.99 14.78 8.46 50.80 2.3RX- 65 480.62 11.91 6.45 4.24 25.40 1.5RX- 66 483.39 16.67 8.51 5.28 31.75 1.5RX- 69 544.12 11.91 6.45 4.24 25.40 1.5RX- 70 550.07 19.84 10.34 6.88 41.28 2.3RX- 73 596.11 13.49 6.68 5.28 31.75 1.5RX- 74 600.87 19.84 10.34 6.88 41.28 2.3RX- 82 67.87 11.91 6.45 4.24 25.40 1.5 1.5RX- 84 74.22 11.91 6.45 4.24 25.40 1.5 1.5RX- 85 90.09 13.49 6.68 4.24 25.40 1.5 1.5RX- 86 103.58 15.08 8.51 4.78 28.58 1.5 1.5RX- 87 113.11 15.08 8.51 4.78 28.58 1.5 1.5RX- 88 139.30 17.46 10.34 5.28 31.75 1.5 3.0RX- 89 129.78 18.26 10.34 5.28 31.75 1.5 3.0RX- 90 174.63 19.84 12.17 7.42 44.45 2.3 3.0RX- 91 286.94 30.16 19.81 7.54 45.24 2.3 3.0RX- 99 245.67 11.91 6.45 4.24 25.40 1.5 *2RX-201 51.46 5.74 3.20 1.45 11.30 0.5 *2RX-205 62.31 5.56 3.05 1.83 *1 11.10 0.5 *2RX-210 97.63 9.53 5.41 3.18 *1 19.05 0.8 *2RX-215 140.89 11.91 5.33 4.24 *1 25.40 1.5 *2

Dimension Tolerance

O D ＋0.50－0.00

A,H ＋0.20－0.00

C ＋0.15－0.00

D ＋0.00－0.80

R1 ±0.50

Notes: (1) This dimension chart is the same as the dimensions of API-Spec.6A RX Pressure Energized Ring Joint Gaskets.

(2) Applicable flanges are API-Spec. 6A Wellhead Equipment 6BFlanges.

(3) Rings RX-82 through RX-91 only require one pressure passage

hole as illustrated. The centerline of the hole shall be located at the midpointof dimension C

(4) The finish of the seal surface of the gaskets is over 63RMS.

* 1 Dimensional tolerance +0, -0.38 * 2 Dimensional tolerance +0.5, -0

Ring Joint Gaskets API BX Rings

81

Standard

Dim

ension Charts

Dimension Chart 13 API BX Ring Joint Dimension Chart Unit : A

Ring

Number

Gasket Dimensions Groove Dimensions

Outside Diameterof RingOD

Height of RingH

Width of RingA

Outside Diameter of FlatODT

Width of FlatC

Depth

E

Outer Diameter G

Width

NR

Hole Sizeφd

BX-150 72.19 9.30 9.30 70.87 7.98 1.59 5.56 73.48 11.43

BX-151 76.40 9.63 9.63 75.03 8.26 1.59 5.56 77.79 11.84

BX-152 84.68 10.24 10.24 83.24 8.79 1.59 5.95 86.23 12.65

BX-153 100.94 11.38 11.38 99.31 9.78 1.59 6.75 102.77 14.07

BX-154 116.84 12.40 12.40 115.09 10.64 1.59 7.54 119.00 15.39

BX-155 147.96 14.22 14.22 145.95 12.22 1.59 8.33 150.62 17.73

BX-169 173.51 15.85 12.93 171.27 10.69 1.59 9.53 176.66 16.92

BX-156 237.92 18.62 18.62 235.28 15.98 3.18 11.11 241.83 23.39

BX-157 294.46 20.98 20.98 291.49 18.01 3.18 12.70 299.06 26.39

BX-158 352.04 23.14 23.14 348.77 19.86 3.18 14.29 357.23 29.18

BX-159 426.72 25.70 25.70 423.09 22.07 3.18 15.88 432.64 32.49

BX-160 402.59 23.83 13.74 399.21 10.36 3.18 14.29 408.00 19.96

BX-161 491.41 28.07 16.21 487.45 12.24 3.18 17.07 497.94 23.62

BX-162 475.49 14.22 14.22 473.48 12.22 1.59 8.33 478.33 17.91

BX-163 556.16 30.10 17.37 551.89 13.11 3.18 18.26 563.50 25.55

BX-164 570.56 30.10 24.59 566.29 20.32 3.18 18.26 577.90 32.77

BX-165 624.71 32.03 18.49 620.19 13.97 3.18 19.05 632.56 27.20

BX-166 640.03 32.03 26.14 635.51 21.62 3.18 19.05 647.88 34.87

BX-167 759.36 35.87 13.11 754.28 8.03 1.59 21.43 768.33 22.91

BX-168 765.25 35.87 16.05 760.17 10.97 1.59 21.43 774.22 25.86

Dimension Tolerance

OD ＋0.50－0.15

H,A ＋0.20－0

ODT ±0.05－0

C ＋0.15－0

E ＋0.50－0

G.N ＋0.10－0.0

Notes: (1) This dimension chart is the same as the dimensions of API-Spec. 6A 1977 BX Pressure Energized Ring-Joint Gaskets.

(2) Applicable flanges are API-Spec. 6A Wellhead Equipment 6BX Flanges.

(3) One pressure passage hole is required per gasket as illustrated.

The centerline of the hole shall be located at the midpoint of dimension C

(4) The finish of the seal surface of the gaskets is over 32RMS.

Radius R shall be 8 ～12% of gasket height H

Ring Joint Gaskets Correspondence of ring number, flange NPS and class

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Nominal

Pipe

Size

Applicable flanges

JPI - 7 - 15, ANSI B 16.5

Class 150 300・400・600 900 1500 2500 960 2000 3000 5000 300・400・600 900

API Spec 6A MSS SP - 44

Dimension Chart 14 Unit : A

1／2B ─ R11 R12 R12 R13 ─ ─ ─ ─ ─ ─

3／4 ─ R13 R14 R14 R16 ─ ─ ─ ─ ─ ─

1 R15 R16 R16 R16 R18 ─ ─ ─ ─ ─ ─

11／4 R17 R16 R18 R18 R21 ─ ─ ─ ─ ─ ─

11／2 R19 R20 R20 R20 R23 ─ R20 R20 R20 ─ ─

2 R22 R23 R24 R24 R26 ─ R23 R24 R24 ─ ─

21／2 R25 R26 R27 R27 R28 ─ R26 R27 R27 ─ ─

3 R29 R30(1) R31 R35 R32 ─ R31 R31 R35 ─ ─

31／2 R33 R34 ─ ─ ─ ─ ─ ─ ─ ─ ─

4 R36 R37 R37 R39 R38 ─ R37 R37 R39 ─ ─

5 R40 R41 R41 R44 R42 ─ R41 R41 ─ ─ ─

6 R43 R45 R45 R46 R47 R45 R45 R45 R46 ─ ─

8 R48 R49 R49 R50 R51 R49 R49 R49 R50 ─ ─

10 R52 R53 R53 R54 R55 R53 R53 R53 R54 ─ ─

12 R56 R57 R57 R58 R60 R57 R57 R57 ─ R57 R57

14 R59 R61 R62 R63 ─ ─ ─ ─ R63 R61 R62

16 R64 R65 R66 R67 ─ R65 R65 R66 ─ R65 R66

18 R68 R69 R70 R71 ─ ─ R69 R70 ─ R69 R70

20 R72 R73 R74 R75 ─ R73 R73 R74 ─ R73 R74

22 ─ ─ ─ ─ ─ ─ ─ ─ ─ R81 ─

24 R76 R77 R78 R79 ─ ─ ─ ─ ─ R77 R78

26 ─ R93 R100 ─ ─ ─ ─ ─ ─ R93 R100

28 ─ R94 R101 ─ ─ ─ ─ ─ ─ R94 R101

30 ─ R95 R102 ─ ─ ─ ─ ─ ─ R95 R102

32 ─ R96 R103 ─ ─ ─ ─ ─ ─ R96 R103

34 ─ R97 R104 ─ ─ ─ ─ ─ ─ R97 R104

36 ─ R98 R105 ─ ─ ─ ─ ─ ─ R98 R105

Notes: (1) R30 is only applicable for lapped joint flange.

(2) If the groove (same R number) is the same, both oval and octagonal can be used.

TOMBO No.1850-CTOMBO No.1850-V

Octagonal type

Oval type

R31

Standard

Dim

ension Charts

83

For ASME B16.5 FlangesFor ASME B16.47 Series B Flanges NAFLONTM PTFE Cushion Gasket (TOMBO� No.9010-NA-A/B)

Nominal

Pipe SizeD1 D2

Class 75 Class 150 Class 300

D3 D4 D3 D4 D3 D4T Type

Dimension Chart 15 Unit : A

1／2 17 24 ─ ─ 36 47 36 53

3／4 22 29 ─ ─ 44 56 44 66

1 28 35 ─ ─ 52 66 52 72

11／4 36 43 ─ ─ 65 75 65 82

11／2 42 49 ─ ─ 74 85 74 94

2 53 60 ─ ─ 92 104 92 110

21／2 66 73 ─ ─ 105 123 105 129

3 90 97 ─ ─ 127 135 127 148

31／2 103 110 ─ ─ 140 161 140 164

4 116 123 ─ ─ 157 173 157 180

5 143 150 ─ ─ 186 196 186 215

6 169 176 ─ ─ 216 221 216 250

8 220 227 ─ ─ 270 277 270 306

10 275 282 ─ ─ 324 338 324 360

12 326 333 ─ ─ 381 408 381 420

14 358 365 ─ ─ 413 449 413 484

16 408 415 ─ ─ 470 512 470 538

18 459 466 ─ ─ 533 547 533 595

20 510 517 ─ ─ 584 604 584 651

24 612 619 ─ ─ 692 715 692 772

26 673 677 705 705 711 722 737 769

28 724 728 756 756 762 773 787 822

30 775 779 806 807 813 824 845 833

32 826 830 857 857 864 878 902 937

34 876 880 908 908 921 932 952 991

36 927 931 965 970 972 984 1,010 1,045

38 978 982 1,016 1,021 1,022 1,042 1,060 1,096

40 1,029 1,033 1,067 1,072 1,080 1,092 1,118 1,146

42 1,080 1,084 1,118 1,123 1,130 1,143 1,168 1,197

44 1,130 1,134 1,168 1,178 1,187 1,194 1,219 1,248

46 1,181 1,185 1,226 1,229 1,238 1,253 1,276 1,315

48 1,232 1,236 1,276 1,280 1,289 1,304 1,327 1,365

54 1,384 1,388 1,429 1,435 1,441 1,461 1,480 1,527

60 1,537 1,541 1,588 1,594 1,600 1,625 1,651 1,702

Notes: (1) Dimensions for class 150 up to 24” are same as JPI-7S-15-1999.

Other dimensions are designed by NICHIAS Corporation tofit to the applicable flanges.

(2) Applicable flanges are ASME B16.5, ASME B16.47 Series B,API 605, JPI-7S-15 and JPI-7S-43.

(3) Dimensions in brackets are for TOMBO No.9010-NA-A-5/-NA-A-7 andTOMBO No.9010-NA-B-5/-NA-B-7.

(4) For slip-on flanges, gaskets for 1/2” to 2-1/2” cannot be used sincethe gasket I.D. (D1) is smaller than the flange I.D.

A-6 Type, A-8 Type B-6 Type, B-8 Type

3.2

(2.8)

3.2

(3.8)

5.0

(3.8)

B Type

A Type

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84

For ASME B16.47 Series A FlangesFor MSS SP-44 Flanges NAFLONTM PTFE Cushion Gasket (TOMBO� No.9010-NA-B)

Nominal Pipe Size

A BD1 D2

Class 150 Class 300

D3 D4 D3 D4T Type

Dimension Chart 16 Unit : A

650 26 673 677 749 775 749 835

700 28 724 728 800 832 800 899

750 30 775 779 857 883 857 952

800 32 826 830 914 940 914 1,006

850 34 876 880 965 991 965 1,057

900 36 927 931 1,022 1,048 1,022 1,118

950 38 978 982 1,073 1,111 1,029 1,054

1,000 40 1,029 1,033 1,124 1,162 1,086 1,114

1,050 42 1,080 1,084 1,194 1,219 1,137 1,165

1,100 44 1,130 1,134 1,245 1,276 1,194 1,219

1,150 46 1,181 1,185 1,295 1,327 1,245 1,273

1,200 48 1,232 1,236 1,359 1,384 1,302 1,324

1,250 50 1,283 1,287 1,410 1,435 1,359 1,378

1,300 52 1,334 1,338 1,460 1,492 1,410 1,429

1,350 54 1,384 1,388 1,511 1,549 1,467 1,492

1,400 56 1,435 1,439 1,575 1,607 1,518 1,543

1,450 58 1,486 1,490 1,626 1,664 1,575 1,594

1,500 60 1,537 1,541 1,676 1,714 1,626 1,645

Notes: (1) These dimensions are designed by NICHIAS Corporation to fit to the applicable flanges.

(2) Applicable flanges are ASME B16.47 Series A and MSS SP-44 flanges.

(3) Dimensions in brackets are for TOMBO No.9010-NA-B-5/-NA-B-7.

B-6 Type, B-8 Type

5.0

(3.8)

3.2

(3.8)

B Type

Standard

Dim

ension Charts

85

For ASME B16.1 Flanges For Taylor Forge Flanges NAFLONTM PTFE Cushion Gasket (TOMBO� No.9010-NA-B)

Nominal Pipe Size

A BD1 D2

Class 125 Class 250

D3 D4 D3 D4T Type

Dimension Chart 17 Unit : A

650 26☆ 673 677 767 775 824 832

700 28☆ 724 728 824 832 887 895

750 30 775 779 875 883 945 952

800 32☆ 826 830 932 940 1,002 1,010

850 34☆ 876 880 983 991 1,053 1,060

900 36 927 931 1,040 1,048 11,10 1,118

950 38 978 982 1,103 1,111 1,160 1,168

1,000 40☆ 1,029 1,033 1,154 1,162 1,218 1,226

1,050 42 1,080 1,084 1,211 1,219 1,281 1,289

1,100 44☆ 1,130 1,134 1,268 1,276 1,338 1,346

1,150 46☆ 1,181 1,185 1,319 1,327 1,396 1,403

1,200 48 1,232 1,236 1,376 1,384 1,484 1,492

1,250 50☆ 1,283 1,287 1,427 1,435 ─ ─

1,300 52☆ 1,334 1,338 1,484 1,492 ─ ─

1,350 54 1,384 1,388 1,541 1,549 ─ ─

1,500 60 1,537 1,541 1,707 1,714 ─ ─

1,650 66☆ 1,689 1,693 1,878 1,886 ─ ─

1,800 72 1,842 1,846 2,043 2,051 ─ ─

2,100 84 2,146 2,150 2,367 2,375 ─ ─

2,400 96 2,451 2,455 2,691 2,699 ─ ─

Notes: (1) These dimensions are designed by NICHIAS Corporation to fit to the applicable flanges.

(2) Applicable flanges are ASME B 16.1-1998 and Taylor Forge Flanges.☆marked sizes are for Taylor Forge flanges

(3) Dimensions in brackets are for TOMBO No.9010-NA-B-5/-NA-B-7.

B-6 Type, B-8 Type

5.0

(3.8)

3.2

(3.8)

B Type

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For ASME B16.5 Flanges NAFLONTM PTFE Cushion Gasket (TOMBO� No.9010-NA-AS)

Notes: (1) These dimensions are designed by NICHIAS Corporation to fit to the applicable flanges.

(2) Applicable flanges are ASME B 16.5 and JPI-7S-15.

(3) Dimensions in brackets are for TOMBO No.9010-NA-AS-5/-NA-AS-7.

Nominal Pipe Size

A BD1 D2

Class 150 Class 300

D3 TD4 D3 D4 TType

Dimension Chart 18 Unit : A

15 1／2 21 24 47 47

20 3／4 26 29 56 56

25 1 32 35 66 66

32 11／4 40 43 75 75

40 11／2 46 49 85 85

50 2 57 60 92 104

65 21／2 70 73 105 123

80 3 94 97 127 135

90 31／2 107 110 140 161

100 4 120 123 157 173

125 5 147 150 186 196

150 6 173 176 216 221

200 8 224 227 270 277

250 10 279 282 324 338

300 12 330 333 381 408

350 14 362 365 413 449

400 16 412 415 470 512

450 18 463 466 533 547

500 20 514 517 584 604

600 24 616 619 692 715

36 53

44 66

52 72

65 82

74 94

92 110

105 129

127 148

140 164

157 180

186 215

216 250

270 306

324 360

381 420

413 484

470 538

533 595

584 651

692 772

AS-6 Type, AS-8 Type

3.4

(3.0)

2.5

(2.5)

3.4

(3.0)

2.5

(2.8)

AS Type

Standard

Dim

ension Charts

87

For ASME B16.5 Flanges NAFLONTM PTFE Cushion Gasket (High temperature applications) (TOMBO� No.9010-NA-A-9)

Notes: (1) These dimensions are designed by NICHIAS Corporation to fit to the applicable flanges.

(2) Applicable flanges are ASME B 16.5 and JPI-7S-15

(3) For slip-on flanges, gaskets for 1/2” to 2-1/2” cannot be used since the gasket I.D. (D1) issmaller than the flange I.D.

Nominal Pipe Size

A BD1 D2

Class 150 Class 300

D3I.D O.D

D4Wire mesh

D3I.D O.D

D4Wire mesh t T Type

Dimension Chart 19 Unit : A

15 1／2 17 25 47 47 26 36 47 53 26 36

20 3／4 22 30 56 56 31 42 56 66 31 42

25 1 28 36 66 66 38 50 66 72 38 50

32 11／4 36 44 75 75 49 63 75 82 49 63

40 11／2 42 50 85 85 55 72 85 94 55 72

50 2 53 61 92 104 70 90 92 110 70 90

65 21／2 66 74 105 123 83 103 105 129 83 103

80 3 90 98 127 135 105 125 127 148 105 125

90 31／2 103 111 140 161 118 138 140 164 118 138

100 4 116 124 157 173 136 155 157 180 136 155

125 5 143 151 186 196 164 184 186 215 164 184

150 6 169 177 216 221 194 214 216 250 194 214

200 8 220 228 270 277 242 268 270 306 242 268

250 10 275 283 324 338 290 322 324 360 290 322

300 12 326 334 381 408 347 379 381 420 347 379

350 14 358 365 413 449 377 411 413 484 377 411

400 16 408 416 470 512 432 468 470 538 432 468

450 18 459 467 533 547 487 531 533 595 487 531

500 20 510 518 584 604 537 582 584 651 537 582

600 24 612 620 692 715 637 690 692 772 637 690

O.D

T t

I.D

D1

D2D3

D4

A Type

3.92.0 A Type

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88

For NAFLONTM Lined Piping NAFLONTM PTFE Cushion Gasket (TOMBO� No.9010-NA-FG-7)

Notes: (1) TOMBO No.9010-NA-FG-7 is a PTFE jacket type gasket used for anti-corrosion NAFLONlined piping.

If a solid type product is required, please use the TOMBO No.9007 NAFLON PTFE cutgasket or TOMBO No.9007-LC NAFLON Low creap gasket.

For D1, D4 and t, follow same dimensions as above chart.

(2) Applicable flanges are flanges for fluoro-piping, 1/2” to 12” Class 150

Nominal Pipe Size

A B

For ANSI (JPI) Class 150

D1 tD4 TType

Dimension Chart 20 Unit : A

15 1／2 16 47

20 3／4 22 56

25 1 28 66

40 11／4 45 85

50 2 58 104

65 21／2 71 123

80 3 85 135

100 4 110 173

125 5 128 196

150 6 160 221

200 8 214 277

250 10 266 338

300 12 328 408

56

1 28

66

40

116 160

221

AS-7 Type

NAFLON PTFE Cut Gasket（TOMBO No.9007）

NAFLON Low Creap Gasket（TOMBO No.9007-LC）

A-7 Type

2.31.5

AS-7 Type

A-7 Type

Standard

Dim

ension Charts

89

For ASME B16.5 Flanges For JPI Flanges EbilonTM Gasket

Dimension Chart 21 Unit : A

Nominal Pipe Size Gaskets Seal section diameter Bolts

OuterdiameterA

InnerdiameterB

Width ofRingB

Thickness

T

Width ofRingA

Width ofRingC

Width ofRingD

Width ofRingPCD

Width ofRingn-φk

Reference

E

15 1／2 86 18 5 30 ─ 60 4-16 42

20 3／4 96 22 5 30 42 70 4-16 52

25 1 105 29 5 37 50 79 4-16 60

(32) (11／4) 115 38 5 46 59 89 4-16 70

40 11／2 125 43 5 53 68 98 4-16 79

50 2 150 54 5 64 83 121 4-19 99

65 21／2 175 69 5 81 101 140 4-19 118

80 3 188 80 5 92 112 152 4-19 130

(90) (31／2) 213 90 5 110 134 178 8-19 154

100 4 226 103 5 124 148 190 8-19 168

(125) (5) 252 129 5 150 174 216 8-22 190

150 6 277 153 5 172 196 241 8-22 212

200 8 340 200 5 222 246 298 8-22 270

250 10 404 254 6 276 300 362 12-25 330

300 12 480 305 6 335 365 432 12-25 400

350 14 530 337 6 365 395 476 12-29 440

400 16 594 387 6 425 455 540 16-29 500

450 18 632 438 6 475 505 578 16-32 538

500 20 696 489 6 525 555 635 20-32 595

600 24 810 591 6 625 665 749 20-35 706

Notes: (1) Applicable gaskets are Ebilon Gaskets TOMBO No.9013, 9013-D, 9013-EP and 9013-DEP.

(2) These gasket dimensions are designed by NICHIAS Corporation to fit to weld-neck flanges of JPI-7S-15-85.

(3) Applicable flanges are weld-neck flanges and socket-welded flanges of JPI-7S-15-85. It is also used for ASME B 16.5 flanges.

FOR ASME / JPI Class 150 Flanges Electrical Insulation Bolt Kit (TOMBO� No.9910/9910H, TOMBO� No.9011-NA-E5)

90

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Dimension Chart 22 Unit : A

d1

rs

L

t

H

d1D2d2

t2

Metal

D2d2

t1

Insulationt3

d3D5

d3D5

t3t3

Insulation bolt Hexagonal nut Insulating washerMetal washer

Insulating gasket

Nominal pipe size Insulation bolt Hexagonal

nutInsulating washerMetal washer Insulating gasket Number

of bolts

Width ofRingB

Width ofRingd1

Width ofRingL

Width ofRingRs

t

TOMBO No.9910

TOMBO No.9910-H

Width ofRingH

Width ofRingd2

Width ofRingD2

Width ofRingt1

Width ofRingt2

Width ofRingd3

Width ofRingD5

Width ofRingt3

Width ofRingN

1/2

3/4

1

1 1/4

1 1/2

2

2 1/2

3

3 1/2

4

5

6

8

10

12

14

16

18

20

24

1/2-UNC

1/2-UNC

1/2-UNC

1/2-UNC

1/2-UNC

5/8-UNC

5/8-UNC

5/8-UNC

5/8-UNC

5/8-UNC

3/4-UNC

3/4-UNC

3/4-UNC

7/8-UNC

7/8-UNC

1-UNC

1-UNC

1 1/8-8UN

1 1/8-8UN

1 1/4-8UN

82

82

86

92

92

103

109

113

113

113

121

121

130

148

148

165

165

183

191

207

36

36

40

46

46

51

57

61

61

61

63

63

72

78

78

87

87

95

103

113

0.7 1.0

12.7

12.7

12.7

12.7

12.7

15.9

15.9

15.9

15.9

15.9

19.1

19.1

19.1

22.2

22.2

25.4

25.4

28.6

28.6

31.8

13.5

13.5

13.5

13.5

13.5

17.0

17.0

17.0

17.0

17.0

21.0

21.0

21.0

23.5

23.5

27.0

27.0

30.0

30.0

33.5

26

26

26

26

26

32

32

32

32

32

40

40

40

44

44

52

52

58

58

62

4

4

4

4

4

4

4

4

4

4

4

4

4

6

6

6

6

6

6

6

2.3

2.3

2.3

2.3

2.3

2.6

2.6

2.6

2.6

2.6

3.2

3.2

3.2

3.2

3.2

4.0

4.0

4.5

4.5

4.5

16

21

27

36

41

53

62

74

86

98

123

147

196

245

295

336

387

437

485

587

47

57

66

76

85

103

122

135

161

173

196

221

277

338

408

449

512

547

604

715

2.5

2.5

2.5

2.5

2.5

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

4

4

4

4

4

4

4

4

8

8

8

8

8

12

12

12

16

16

20

20

＊Applicable flange: ASME B 16.5 (Class 150 and 300), JPI-75-15-81(Class 150 and 300).

＊The inner diameter of gasket is the same as that of STPG sch40 steel pipe for up to nominal size of 12B, the same as or 4mm smaller than that of STPG sch20 steelpipe.

＊The size of TOMBO No.9910 is the same as that of TOMBO No.9910-H except for "t" that stands for the thickness of insulating sleeve.

＊If service temperature is over 150℃, TOMBO No.9910-H/9007-LC should be used. Please consult with us about the size of the TOMBO No.9007-LC.

FOR ASME / JPI Class 300 Flanges Electrical Insulation Bolt Kit (TOMBO� No.9910/9910H, TOMBO� No.9011-NA-ES)

91

Standard

Dim

ension Charts

Dimension Chart 23 Unit : A

Nominal pipe size Insulation bolt Hexagonal

nutInsulating washerMetal washer Insulating gasket Number

of bolts

Width ofRingB

Width ofRingd1

Width ofRingL

Width ofRingRs

t

TOMBO No.9910

TOMBO No.9910-H

Width ofRingH

Width ofRingd2

Width ofRingD2

Width ofRingt1

Width ofRingt2

Width ofRingd3

Width ofRingD5

Width ofRingt3

Width ofRingN

1/2

3/4

1

1 1/4

1 1/2

2

2 1/2

3

3 1/2

4

5

6

8

10

12

14

16

18

20

24

1/2-UNC

5/8-UNC

5/8-UNC

5/8-UNC

3/4-UNC

5/8-UNC

3/4-UNC

3/4-UNC

3/4-UNC

3/4-UNC

3/4-UNC

3/4-UNC

7/8-UNC

1-UNC

1 1/8-8UN

1 1/8-8UN

1 1/4-8UN

1 1/8-8UN

1 1/4-8UN

1 1/2-8UN

86

98

98

103

115

109

121

130

136

136

145

145

168

190

204

212

224

230

238

268

40

46

46

51

55

57

63

72

76

76

85

85

98

110

116

124

130

136

144

158

0.7 1.0

12.7

15.9

15.9

15.9

19.1

15.9

19.1

19.1

19.1

19.1

19.1

19.1

22.2

25.4

28.6

28.6

31.8

31.8

31.8

38.1

13.5

17.0

17.0

17.0

21.0

17.0

21.0

21.0

21.0

21.0

21.0

21.0

23.5

27.0

30.0

30.0

33.5

33.5

33.5

40.0

26

32

32

32

40

32

40

40

40

40

40

40

44

52

58

58

62

62

62

72

4

4

4

4

4

4

4

4

4

4

4

4

6

6

6

6

6

6

6

6

2.3

2.6

2.6

2.6

3.2

2.6

3.2

3.2

3.2

3.2

3.2

3.2

3.2

4.0

4.5

4.5

4.5

4.5

4.5

5.0

16

21

27

36

41

53

62

74

86

98

123

147

196

245

295

336

387

437

485

587

53

66

72

82

95

110

129

148

164

180

215

250

306

360

420

484

538

595

651

772

2.5

2.5

2.5

2.5

2.5

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

4

4

4

4

4

8

8

8

8

8

8

12

12

16

16

20

20

24

24

24

＊The inner diameter of gasket is the same as that of STPG sch40 steel pipe for up to nominal size of 12B, the same as or 4mm smaller than that of STPG sch20 steelpipe.

＊Please let us know if whitworth screw thread is used.

＊The size of TOMBO No.9910 is the same as that of TOMBO No.9910-H except for "t" that stands for the thickness of insulating sleeve.

＊If service temperature is over 150℃, TOMBO No.9910-H/9007-LC should be used. Please consult with us about the size of the TOMBO No.9007-LC.

d1

rs

L

t

H

d1D2d2

t2

Metal

D2d2

t1

Insulationt3

d3D5

d3D5

t3t3

Insulation bolt Hexagonal nut Insulating washerMetal washer

Insulating gasket

Standard

Dim

ension Charts

93

For JIS Flanges Soft Gasket, Flat Ring Gasket

Dimension Chart 24 Unit : A

Nominal

Pipe Size

Gasket

inner

diameter

D1

For full face/ large raised face/small raised

Gasket outer diameter D2

Nominalpressure2K

Nominalpressure5K

Nominalpressure10K

Thin flangenominal pressure10K

Nominalpressure16K

Nominalpressure20K

Nominalpressure30K

Nominalpressure40K

Nominalpressure63K

10A 18 ─ 45 53 55 53 53 59 59 6415 22 ─ 50 58 60 58 58 64 64 6920 28 ─ 55 63 65 63 63 69 69 7525 35 ─ 65 74 78 74 74 79 79 8032 43 ─ 78 84 88 84 84 89 89 9040 49 ─ 83 89 93 89 89 100 100 10850 61 ─ 93 104 108 104 104 114 114 12565 ─ 118 124 128 124 124 140 140 15380 90 ─ 129 134 138 140 140 150 150 16390 102 ─ 139 144 148 150 150 163 163 181100 115 ─ 149 159 163 165 165 173 183 196125 141 ─ 184 190 194 203 203 208 226 235150 167 ─ 214 220 224 238 238 251 265 275175 192 ─ 240 245 249 ─ ─ ─ ─ ─200 218 ─ 260 270 274 283 283 296 315 330225 244 ─ 285 290 294 ─ ─ ─ ─ ─250 270 ─ 325 333 335 356 356 360 380 394300 321 ─ 370 378 380 406 406 420 434 449350 359 ─ 413 423 425 450 450 465 479 488400 410 ─ 473 486 488 510 510 524 534 548450 460 535 533 541 ─ 575 575 ─ ─ ─500 513 585 583 596 ─ 630 630 ─ ─ ─550 564 643 641 650 ─ 684 684 ─ ─ ─600 615 693 691 700 ─ 734 734 ─ ─ ─650 667 748 746 750 ─ 784 805 ─ ─ ─700 718 798 796 810 ─ 836 855 ─ ─ ─750 770 856 850 870 ─ 896 918 ─ ─ ─800 820 906 900 920 ─ 945 978 ─ ─ ─850 872 956 950 970 ─ 995 1,038 ─ ─ ─900 923 1,006 1,000 1,020 ─ 1,045 1,088 ─ ─ ─1,000 1,025 1,106 1,100 1,124 ─ 1,158 ─ ─ ─ ─1,100 1,130 1,216 1,210 1,234 ─ 1,258 ─ ─ ─ ─1,200 1,230 1,326 1,320 1,344 ─ 1,368 ─ ─ ─ ─1,300 1,335 ─ ─ ─ ─ 1,474 ─ ─ ─ ─1,350 1,385 1,481 1,475 1,498 ─ 1,534 ─ ─ ─ ─1,400 1,435 ─ ─ ─ ─ 1,584 ─ ─ ─ ─1,500 1,540 1,636 1,630 1,658 ─ 1,694 ─ ─ ─ ─

84〔77〕

For full face flanges For large raised face flanges

Notes: (1) Soft gaskets include joint sheet gaskets, rubber cut gaskets, clothreinforced rubber cut gaskets, Graseal gaskets and PTFE cutgaskets.

(2) This dimension chart is the same as the dimensions shown below.

JIS B2404-2666 “Dimensions of gaskets for use with pipe flange“reference, table 4.

But, dimensions below〔 〕and one for 2K,40K and 63K which are

Not specified by the above standard are as per JIS B2404-1999

“Dimensions of gaskets for use with pipe flange“ reference, table 7.

(3) Applicable flanges are those specified in the following standards.JIS B2220-2004 “Steel welding pipe flanges“JIS B2239-2004 “Cast iron pipe flanges“JIS B2240-2006 “General rulus for copper alloy pipe flanges“JIS B2241-2006 “Basic dimensions of aluminum alloy pipe flanges“JIS B2240-1996 “General rules for copper alloy pipe flanges“JIS B2241-1986 “Basic dimensions of aluminum alloy pipe flanges“JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

(4) Joint sheets, Graseal gaskets and PTFE cut gaskets are not recommendedfor nominal pressures of 2K and 5K.

(5) For nominal pressure of 30K and above, soft gaskets are not recommended.

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For JIS Flanges Soft Gasket/Full Face Gasket (F.F.)

Dimension Chart 25 Unit : A

Nominal

Pipe Size

Gasketinnerdiameter

D1

Nominal pressure 2K 5K 10K 16K

Gasketouterdiameter

D2

Bolt circlediameter

C

n × h

Gasketouterdiameter

D2

Bolt circlediameter

C

n × h

Gasketouterdiameter

D2

Bolt circlediameter

C

n × h

Gasketouterdiameter

D2

Bolt circlediameter

C

n × h

10A 18 ─ ─ ─ 75 55 4×12 90 65 4×15 90 65 4×1515 22 ─ ─ ─ 80 60 4×12 95 70 4×15 95 70 4×1520 28 ─ ─ ─ 85 65 4×12 100 75 4×15 100 75 4×1525 35 ─ ─ ─ 95 75 4×12 125 90 4×19 125 90 4×1932 43 ─ ─ ─ 115 90 4×15 135 100 4×19 135 100 4×1940 49 ─ ─ ─ 120 95 4×15 140 105 4×19 140 105 4×1950 61 ─ ─ ─ 130 105 4×15 155 120 4×19 155 120 8×1965 ─ ─ ─ 155 130 4×15 175 140 4×19 175 140 8×1980 90 ─ ─ ─ 180 145 4×19 185 150 8×19 200 160 8×2390 102 ─ ─ ─ 190 155 4×19 195 160 8×19 210 170 8×23100 115 ─ ─ ─ 200 165 8×19 210 175 8×19 225 185 8×23125 141 ─ ─ ─ 235 200 8×19 250 210 8×23 270 225 8×25150 167 ─ ─ ─ 265 230 8×19 280 240 8×23 305 260 12×25175 192 ─ ─ ─ 300 260 8×23 305 265 12×23 ─ ─ ─200 218 ─ ─ ─ 320 280 8×23 330 290 12×23 350 305 12×25225 244 ─ ─ ─ 345 305 12×23 350 310 12×23 ─ ─ ─250 270 ─ ─ ─ 385 345 12×23 400 355 12×25 430 380 12×27300 321 ─ ─ ─ 430 390 12×23 445 400 16×25 480 430 16×27350 359 ─ ─ ─ 480 435 12×25 490 445 16×25 540 480 16×33400 410 ─ ─ ─ 540 495 16×25 560 510 16×27 605 540 16×33450 460 605 555 16×23 605 555 16×25 620 565 20×27 675 605 20×33500 513 655 605 20×23 655 605 20×25 675 620 20×27 730 660 20×33550 564 720 655 20×25 720 665 20×27 745 680 20×33 795 720 20×39600 615 770 715 20×25 770 715 20×27 795 730 24×33 845 770 24×39650 667 825 770 24×25 825 770 24×27 845 780 24×33 ─ ─ ─700 718 875 820 24×25 875 820 24×27 905 840 24×33 ─ ─ ─750 770 945 880 24×27 945 880 24×33 970 900 24×33 ─ ─ ─800 820 995 930 24×27 995 930 24×33 1,020 950 28×33 ─ ─ ─850 872 1,045 980 24×27 1,045 980 24×33 1,070 1,000 28×33 ─ ─ ─900 923 1,095 1,030 24×27 1,095 1,030 24×33 1,120 1,050 28×33 ─ ─ ─1,000 1,025 1,195 1,130 28×27 1,195 1,130 28×33 1,235 1,160 28×39 ─ ─ ─1,100 1,130 1,305 1,240 28×27 1,305 1,240 28×33 1,345 1,270 28×39 ─ ─ ─1,200 1,230 1,420 1,350 32×27 1,420 1,350 32×33 1,465 1,380 32×39 ─ ─ ─1,350 1,385 1,575 1,505 32×27 1,575 1,505 32×33 1,630 1,540 36×45 ─ ─ ─1,500 1,540 1,730 1,660 36×27 1,730 1,660 36×33 1,795 1,700 40×45 ─ ─ ─

84〔77〕

Notes: (1) Soft gaskets include joint sheet gaskets, rubber cut gaskets, clothreinforced rubber cut gaskets, Graseal gaskets and PTFE cutgaskets.

(2) This dimension chart is the same as the dimensions shown below.

JIS B2404-2006 “Dimensions of gaskets for use with pipe flange“

reference, table 2 and 3.

But, dimensions below〔 〕and one for 2K which is not specified

By the above standard are as per JIS B2404-1999 “Dimensions ofGaskets for use with pipe flange“ reference, table 6.

(3) Applicable flanges are those specified in the following standards.

JIS B2220-2004 “Steel welding pipe flanges“

JIS B2239-2004 “Cast iron pipe flanges“

JIS B2240-2006 “General rulus for copper alloy pipe flanges“

JIS B2241-2006 “Basic dimensions of aluminum alloy pipe flanges“

JIS B2240-1996 “General rules for copper alloy pipe flanges“

JIS B2241-1986 “Basic dimensions of aluminum alloy pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

(4) Joint sheets, Graseal gaskets and PTFE cut gaskets are not recommended fornominal pressures of 2K and 5K.

Even 10K and 16K full face gaskets are not suitable for gas sealing due toinsufficient seating stress.

Standard

Dim

ension Charts

95

For JIS, M&F, T&G Flanges Soft Gasket

Nominal Pipe Size

Tongue & GrooveMale & Female

Gasket inner

diameter

D1

Gasket outer

diameter

D2

Gasket inner

diameter

D1

Gasket outer

diameter

D2

Dimension Chart 26 Unit : A

10A 18 38 28 3815 22 42 32 4220 28 50 38 5025 35 60 45 6032 43 70 55 7040 49 75 60 7550 61 90 70 9065 77 110 90 11080 90 120 100 12090 102 130 110 130100 115 145 125 145125 141 175 150 175150 167 215 190 215200 218 260 230 260250 270 325 295 325300 321 375 340 375350 359 415 380 415400 410 475 440 475450 460 523 483 523500 513 575 535 575550 564 625 585 625600 615 675 635 675650 667 727 682 727700 718 777 732 777750 770 832 787 832800 820 882 837 882850 872 934 889 934900 923 987 937 9871,000 1,025 1,092 1,042 1,0921,100 1,130 1,192 1,142 1,1921,200 1,230 1,292 1,237 1,2921,300 1,335 1,392 1,337 1,3921,350 1,385 1,442 1,387 1,4421,400 1,435 1,492 1,437 1,4921,500 1,540 1,592 1,537 1,592

Notes: (1) The materials used are mainly joint sheet, Graseal, and PTFE cut gaskets.

(2) This dimension chart is the same as the dimensions shown below.

JIS B 2404-2006 “Dimensions of gaskets for pipe flanges” Chart-5

(3) Applicable flanges are those specified in the following standards.

JIS B2220-2004 “Steel welding pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

JIS B2239-1996 “General rules for cast iron pipe flanges“ (Discontinued)

Male & Female Tongue & Groove

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For JIS Flanges VortexTM Gasket with Outer Ring

Nominal

Pipe

Size

Thickness

T

4.5

Nominal pressure 10K

Innerdiameter

D2

Outerdiameter

D3

Outer ringouterdiameter D4

16, 20K

Innerdiameter

D2

Outerdiameter

D3

Outer ringouterdiameter D4

30K

Innerdiameter

D2

Outerdiameter

D3

Outer ringouterdiameter D4

40K

Innerdiameter

D2

Outerdiameter

D3

Outer ringouterdiameter D4

63K

Innerdiameter

D2

Outerdiameter

D3

Outer ringouterdiameter D4

Dimension Chart 27 Unit : A

10A 24 37 52 24 37 52 24 37 59 21 34 59 21 34 64

15 28 41 57 28 41 57 28 41 64 24 37 64 24 37 69

20 34 47 62 34 47 62 34 47 69 29 42 69 29 42 75

25 40 53 74 40 53 74 40 53 79 35 48 79 35 48 80

32 51 67 84 51 67 84 51 67 89 44 60 89 44 60 90

40 57 73 89 57 73 89 57 73 100 51 67 100 51 67 107

50 69 89 104 69 89 104 69 89 114 63 79 114 63 79 125

65 87 107 124 87 107 124 78 98 140 78 98 140 78 98 152

80 98 118 134 99 119 140 90 110 150 90 110 150 90 110 162

90 110 130 144 114 139 150 102 127 162 102 127 162 102 127 179

100 123 143 159 127 152 165 116 141 172 116 141 182 116 141 194

125 148 173 190 152 177 202 140 165 207 140 165 224 140 165 235

150 174 199 220 182 214 237 165 197 249 165 197 265 165 197 275

175 201 226 245 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─

200 227 252 270 233 265 282 218 250 294 218 250 315 218 250 328

225 252 277 290 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─

250 278 310 332 288 328 354 271 311 360 271 311 378 271 311 394

300 329 361 377 339 379 404 320 360 418 320 360 434 320 360 446

350 366 406 422 376 416 450 356 396 463 356 396 479 356 396 488

400 417 457 484 432 482 508 403 453 524 403 453 531 403 453 545

450 468 518 539 483 533 573 ─ ─ ─ ─ ─ ─ ─ ─ ─

500 518 568 594 533 583 628 ─ ─ ─ ─ ─ ─ ─ ─ ─

550 569 619 650 584 634 684 ─ ─ ─ ─ ─ ─ ─ ─ ─

600 620 670 700 635 685 734 ─ ─ ─ ─ ─ ─ ─ ─ ─

Notes: (1) This dimension chart is the same as the dimensions shown below.

JIS B 2404-1999 “Dimension of gaskets for pipe flanges” Chart 12 ~ 16

(2) Applicable flanges are those specified in the following standards.

JIS B2220-2004 “Steel welding pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

JIS B2239-1996 “General rules for cast iron pipe flanges“ (Discontinued)

However, the dimensions of 10K, 16K and 20K cannot be used forsmall raised face gaskets.

In the case of the dimensions of 30K, a nominal size of 50A and undercan only be used for large raised face gaskets. 65A and over can beused for both large and small raised face gaskets, but these are onlyapplicable for weld-neck (butt-welded) flanges and C type slip-onwelded flanges as specified in JIS B 2220. The dimensions of 40K and63K are suitable for large and small raised face gaskets, but these areonly applicable for weld-neck flanges and C type slip-on welded flangesas specified in JIS B 2220.

(3) For the 30K A and B type slip-on welded flanges, please use the dimensionsshown on Page 96. Dimension Charts 28 & 29

(4) For flanges with a nominal pressure of 63K, Vortex gaskets with inner and outerrings are recommended.

(5) For Graseal and Naflon Vortex gaskets, those with inner and outer ring type arerecommended.

(6) For 2K and 5K flanges, Vortex gaskets are not recommended.

(7) For bolting material, high-tension bolts such as B7 (SNB7) and above are required.

(8) The gasket outer diameter for the types with outer ring indicates the shoulderdimensions of the gasket excluding spring layers.

Standard

Dim

ension Charts

97

For JIS Flanges VortexTM Gasket with Outer and Inner Ring

Nominal

Pipe

Size

Thickness

T

4.5

Nominal pressure 16, 20K

Innerdiameter

D2

Inner ring inner diameter D1

Outerdiameter

D3

Outer ringouterdiameter D4

Innerdiameter

D2

Inner ring inner diameter D1

Outerdiameter

D3

Outer ringouterdiameter D4

Innerdiameter

D2

Inner ring inner diameter D1

Outerdiameter

D3

Outer ringouterdiameter D4

Innerdiameter

D2

Inner ring inner diameter D1

Outerdiameter

D3

Outer ringouterdiameter D4

30K 40K 63K

Dimension Chart 28 Unit : A

10A 18 24 37 52 18 24 34 59 15 21 34 59 15 21 34 64

15 22 28 41 57 22 28 41 64 18 24 37 64 18 24 37 69

20 28 34 47 62 28 34 47 69 23 29 42 69 23 29 42 75

25 34 40 53 74 34 40 53 79 29 35 48 79 29 35 48 80

32 43 51 67 84 43 51 67 89 38 44 60 89 38 44 60 90

40 49 57 73 89 49 57 73 100 43 51 67 100 43 51 67 107

50 61 69 89 104 61 69 89 114 55 63 79 114 55 63 79 125

65 77 87 107 124 68 78 98 140 68 78 98 140 68 78 98 152

80 89 99 119 140 80 90 110 150 80 90 110 150 80 90 110 162

90 102 114 139 150 92 102 127 162 92 102 127 162 92 102 127 179

100 115 127 152 165 104 116 141 172 104 116 141 182 104 116 141 194

125 140 152 177 202 128 140 165 207 128 140 165 224 128 140 165 235

150 166 182 214 237 153 165 197 249 153 165 197 265 153 165 197 275

200 217 233 265 282 202 218 250 294 202 218 250 315 202 218 250 328

250 268 288 328 354 251 271 311 360 251 271 311 378 251 271 311 394

300 319 339 379 404 300 320 360 418 300 320 360 434 300 320 360 446

350 356 376 416 450 336 356 396 463 336 356 396 479 336 356 396 488

400 407 432 482 508 383 403 453 524 383 403 453 531 383 403 453 545

450 458 483 533 573 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─

500 508 533 583 628 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─

550 559 584 634 684 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─

600 610 635 685 734 ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─

Notes: (1) This dimension chart is the same as the dimensions shownbelow.

JIS B 2404-1999 “Dimensions of gaskets for pipe flanges”Chart 17 ~ 20

(2) Applicable flanges are those specified in the followingstandards.

Applicable flanges:

JIS B2220-2004 “Steel welding pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

JIS B2239-1996 “General rules for cast iron pipe flanges“ (Discontinued)

For 16K and 20K, these dimensions cannot be used for smallraised face flanges.

For 30K, 10A-50A are only applicable for large raised face.

65A and above are applicable for large and small raised face,but limited to only for weld-neck flanges and C type slip-onflanges as per JIS B 2220.

For 40K and 63K, applicable for large and small raised face, butlimited to only weld-neck flanges and C type slip-on flanges as perJIS B 2220.

(3) For 30K A and B type slip-on flanges, use the dimensions shown onPage 35. Dimension Charts 28 & 29

(4) For bolting material, high-tension bolts such as B7 (SNB7) and aboveare required.

(5) The gasket outer diameter for the types with outer ring indicates theshoulder dimensions of the gasket excluding spring layers.

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For JIS Large Flanges VortexTM Gasket with Outer and Inner Ring

Notes: (1) These dimensions are designed by Nichias Corporation to fit to the following flanges.JIS B2220-2004 “Steel welding pipe flanges“JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)JIS B2239-1996 “General rules for cast iron pipe flanges“ (Discontinued)

(2) For bolting material, high-tension bolts such as B7 (SNB7) and above are required.(3) The gasket outer diameter for the types with outer ring indicates the shoulder dimensions of the

gasket excluding spring layers.

Nominal

Pipe

Size

Nominal pressure 10K

Innerdiameter

D2

Inner ringinnerdiameter D1

Outerdiameter

D3

Outer ringouterdiameter D4

Innerdiameter

D2

Inner ringinnerdiameter D1

Outerdiameter

D3

Outer ringouterdiameter D4

Innerdiameter

D2

Inner ringinnerdiameter D1

Outerdiameter

D3

Outer ringouterdiameter D4

16K 20K

Dimension Chart 29

Dimension Chart 30

Unit : A

650A 650 675 725 750 674 699 749 784 695 720 770 805

700 700 726 776 810 716 741 791 836 740 765 815 855

750 752 777 827 870 777 802 852 896 799 824 874 918

800 803 828 878 920 831 856 906 945 865 881 931 978

850 854 879 929 970 880 905 955 995 919 944 994 1,038

900 904 929 979 1,020 934 959 1,009 1,045 971 996 1,046 1,088

1,000 1,006 1,036 1,086 1,124 1,030 1,060 1,110 1,158 ─ ─ ─ ─

1,100 1,108 1,138 1,188 1,234 1,132 1,162 1,212 1,258 ─ ─ ─ ─

1,200 1,209 1,239 1,289 1,344 1,240 1,270 1,320 1,368 ─ ─ ─ ─

1,300 ─ ─ ─ 1,341 1,371 1,421 1,474 ─ ─ ─ ─

1,350 1,362 1,392 1,442 1,498 1,403 1,433 1,483 1,534 ─ ─ ─ ─

1,400 ─ ─ ─ ─ 1,453 1,483 1,533 1,584 ─ ─ ─ ─

1,500 1,514 1,544 1,594 1,658 1,559 1,589 1,639 1,694 ─ ─ ─ ─

Nominal

Pipe

Size

Slip-on Welded Flange A Type

30K

InnerdiameterD2

Inner ring innerdiameter D1

OuterdiameterD3

Outer ringouter diameter D4

For Slip-on Welded Flange A TypeVortex Gasket with Outer and Inner Ring

Dimension Chart 31

For Slip-on Welded Flange B TypeVortex Gasket with Outer and Inner Ring

Unit : A

InnerdiameterD2

Inner ring innerdiameter D1

OuterdiameterD3

Outer ring outerdiameter D4

InnerdiameterD2

Inner ring innerdiameter D1

OuterdiameterD3

Outer ring outerdiameter D4

10A 21.0 29.0 42.0 59.0

15 25.0 32.0 45.0 64.0

20 30.5 37.0 50.0 69.0

25 37.5 47.0 60.0 79.0

32 46.0 54.0 70.0 89.0

40 52.0 64.0 80.0 100.0

50 64.0 75.0 95.0 114.0

65 80.0 100.0 120.0 140.0

80 93.0 110.0 130.0 150.0

90 105.0 120.0 140.0 163.0

100 118.5 130.0 150.0 173.0

125 146.0 160.0 185.0 208.0

150 171.5 190.0 220.0 251.0

200 223.0 235.0 265.0 296.0

250 274.0 290.0 330.0 360.0

300 326.0 350.0 390.0 420.0

350 363.0 395.0 435.0 465.0

400 414.0 445.0 495.0 524.0

Nominal

Pipe

Size

Slip-on Welded Flange B Type

20K 30K

Unit : A

10 23 29 39 52 30 36 46 59

15 27 33 43 57 36 42 52 64

20 33 39 49 62 40 46 56 69

25 38 46 59 74 46 54 67 79

32 47 55 68 84 54 62 75 89

40 53 61 74 89 60 68 81 100

50 64 74 90 104 70 80 96 114

Standard

Dim

ension Charts

99

For JIS Flanges Standard type/VortexTM Gasket with Inner Ring

Notes: (1) This dimension chart is the same as the dimensions shownbelow.

JIS B 2404-2006 “Dimensions of gaskets for pipe flanges”Chart 11 ~ 13

(2) Applicable flanges are Tongue & Groove and Male & Female flanges specified in the following standards.

JIS B2220-2004 “Steel welding pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“(Discontinued)

(3) When a Vortex gasket with inner ring is used for slip-on flange, pleasepay attention to the dimensions since the inner diameter of inner ringis small than the flange inner diameter.

(4) For bolting material, high-tension bolts such as B7 (SNB7) and aboveare required.

Nominal

Pipe

Size

For JIS flanges

Tongue & Groove

Standard type Standard type With inner ring

Male & Female

Outer diameter

D3

Inner diameter

D2

Inner ring innerdiameter

D1

Outer diameter

D3

Inner diameter

D2

Outer diameter

D3

Inner diameter

D2

Dimension Chart 32 Unit : A

10A 28 38 25 38 19 25 38

15 32 42 29 42 23 29 42

20 38 50 37 50 31 37 50

25 45 60 44 60 38 44 60

32 55 70 54 70 46 54 70

40 60 75 59 75 51 59 75

50 70 90 70 90 62 70 90

65 90 110 90 110 80 90 110

80 100 120 100 120 90 100 120

90 110 130 110 130 100 110 130

100 125 145 125 145 113 125 145

125 150 175 150 175 138 150 175

150 190 215 187 215 171 187 215

200 230 259 231 259 215 231 259

250 296 324 288 324 268 288 324

300 341 374 338 374 318 338 374

350 381 414 376 414 356 376 414

400 441 474 434 474 409 434 474

Tongue & Groove Male & Female

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For JIS Flanges NAFLONTM PTFE Cushion Gasket (TOMBO� No.9010-NA-A/B)

Notes: (1) These dimensions were designed by NICHIAS Corporation tofit to JIS B 2238-1996 flanges.

(2) Applicable flanges are those specified in the following standards.JIS B2220-2004 “Steel welding pipe flanges“JIS B2239-2004 “Cast iron pipe flanges“JIS B2240-1996 “General rules for copper alloy pipe flanges“JIS B2241-1986 “Basic dimensions of aluminum alloy pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“(Discontinued)

(3) Dimensions in brackets are applicable for TOMBO No.9010-NA-A-5/-NA-A-7 and TOMBO No.9010-NA-B-5/-NA-B-7 type.

(4) For B type slip-on flanges as per JIS B 2220, nominal pressure of20K, nominal size of 10~50A gaskets with these dimensions cannotbe used.

A-6 Type, A-8 Type B-6 Type, B-8 Type

Nominal Pipe Size 5K

A BD1 D2

D3 D4

Dimension Chart 33 Unit : A

10K

D3 D4

16K

D3 D4

20K

D3 D4T Type

10 3／8 18 26 42 45 49 53 48 53 49 53

15 1／2 22 30 46 50 54 58 52 58 54 58

20 3／4 28 36 52 55 59 63 58 63 59 63

25 1 35 43 59 65 70 74 70 74 70 74

32 11／4 43 51 71 78 79 84 79 84 79 84

40 11／2 49 57 77 83 84 89 85 89 85 89

50 2 62 69 88 93 99 104 100 104 99 104

65 21／2 78 85 106 118 119 124 116 124 119 124

80 3 91 98 121 129 129 134 135 140 135 140

90 31／2 104 111 134 139 140 144 145 150 148 150

100 4 117 124 145 149 155 159 160 165 163 165

125 5 144 151 178 184 185 190 195 203 198 203

150 6 171 178 205 214 215 220 227 238 233 238

175 7 193 200 229 240 240 245 ─ ─ ─ ─

200 8 219 226 255 260 265 270 275 283 278 283

225 9 244 251 280 285 285 290 ─ ─ ─ ─

250 10 271 278 313 325 321 333 345 356 345 356

300 12 321 328 363 370 370 378 395 406 395 406

350 14 356 363 401 413 415 423 436 450 436 450

400 16 407 414 461 473 471 486 487 510 487 510

450 18 457 464 511 533 530 541 556 575 565 575

500 20 510 517 571 583 583 596 609 630 609 630

550 22 561 568 625 641 635 650 665 684 665 684

600 24 612 619 676 691 684 700 716 734 716 734

650 26 670 674 735 746 740 750 770 784 790 805

700 28 725 729 785 796 800 810 820 836 840 855

750 30 775 779 840 850 855 870 880 896 900 918

800 32 825 829 890 900 905 920 930 945 960 978

850 34 875 879 940 950 955 970 980 995 1,020 1,038

900 36 925 929 990 1,000 1,005 1,020 1,030 1,045 1,070 1,088

1,000 40 1,030 1,034 1,090 1,100 1,110 1,124 1,140 1,158 ─ ─

1,100 44 1,130 1,134 1,200 1,210 1,220 1,234 1,240 1,258 ─ ─

1,200 48 1,230 1,234 1,305 1,320 1,325 1,344 1,350 1,368 ─ ─

1,300 52 1,335 1,339 ─ ─ ─ ─ 1,450 1,474 ─ ─

1,350 54 1,390 1,394 1,460 1,475 1,480 1,498 1,510 1,534 ─ ─

1,400 56 1,435 1,439 ─ ─ ─ ─ 1,560 1,584 ─ ─

1,500 60 1,545 1,549 1,615 1,630 1,635 1,658 1,670 1,694 ─ ─

3.2

(2.8)A Type

3.2

(3.8)

5.0

(3.8)

B Type

Standard

Dim

ension Charts

101

For JIS Flanges NAFLONTM PTFE Cushion Gasket (TOMBO� No.9010-NA-AS)

Nominal Pipe Size 5K

A BD1 D2

D3 D4

Dimension Chart 34 Unit : A

10K

D3 D4

16,20K

D3 D4T Type

10 3／8 26 28 42 45 48 53 48 53

15 1／2 31 33 48 50 52 58 52 58

20 3／4 36 38 52 55 58 63 58 63

25 1 41 43 62 65 70 74 70 74

32 11／4 51 53 72 78 80 84 80 84

40 11／2 56 58 78 83 85 89 85 89

50 2 67 70 88 93 100 104 100 104

65 21／2 92 95 112 118 120 124 120 124

80 3 102 105 125 129 130 134 135 140

90 31／2 112 115 135 139 140 144 145 150

100 4 122 125 145 149 155 159 160 165

125 5 152 155 180 184 185 190 195 203

150 6 187 190 210 214 215 220 230 238

175 7 207 210 235 240 240 245 ─ ─

200 8 232 235 255 260 265 270 275 283

225 9 257 260 280 285 285 290 ─ ─

250 10 297 300 320 325 325 333 345 356

300 12 337 340 365 370 370 378 395 406

350 14 377 380 405 413 415 423 440 450

400 16 427 430 465 473 475 486 495 510

450 18 477 480 525 533 530 541 560 575

500 20 527 530 575 583 585 596 615 630

550 22 577 580 630 641 640 650 670 684

600 24 627 630 680 691 690 700 720 734

3.4

(3.0)

2.5

(2.5)

AS Type

AS-6 Type, AS-8 Type

Notes: (1) These dimensions are designed by NICHIAS Corporation to fit to JIS B 2238-1996 flanges.

(2) Applicable flanges are those specified in the following standards.

JIS B2220-2004 “Steel welding pipe flanges“

JIS B2239-2004 “Cast iron pipe flanges“

JIS B2240-1996 “General rules for copper alloy pipe flanges“

JIS B2241-1986 “Basic dimensions of aluminum alloy pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

(3) Dimensions in brackets are applicable for TOMBO No.9010-NA-AS-5/-NA-AS-7.

(4) For B type slip-on flanges as per JIS B 2220, nominal pressure of 20K, nominal size of 10~50A gaskets with these dimensions cannot beused since inner diameter of gasket is smaller than flange inner diameter.

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102

For JIS Flanges NAFLONTM PTFE Cushion Gasket (High temperature applications) (TOMBO� No.9010-NA-A-9)

O.D

T t

I.D

D1

D2D3

D4

Nominal Pipe

Size

10K

Wire mesh

I.D O.DA B

D1 D2D3 D4

16,20K

Wire mesh

I.D O.DD3 D4

Dimension Chart 35 Unit : A

t T Type

(10) 3／8 18 26 49 53 30 47 49 53 30 47

(15) 1／2 22 30 54 58 34 52 54 58 34 52

(20) 3／4 28 36 59 63 40 57 59 63 40 57

25 1 35 43 70 74 47 68 70 74 47 68

32 11／4 43 51 79 84 55 77 79 84 55 77

40 11／2 49 57 85 89 61 83 85 89 61 83

50 2 61 69 99 104 73 97 99 104 73 97

65 21／2 77 85 119 124 89 117 119 124 89 117

80 3 90 98 129 134 102 127 135 140 102 133

90 31／2 103 111 140 144 115 138 148 150 115 146

100 4 116 124 155 159 128 153 163 165 128 161

125 5 143 151 185 190 155 183 198 203 155 196

150 6 170 178 215 220 182 213 233 238 182 231

175 7 192 200 240 245 204 238 ─ ─ 204 ─

200 8 218 226 265 270 230 263 278 283 230 276

225 9 243 251 285 290 255 283 ─ ─ 255 ─

250 10 270 278 321 333 282 319 345 356 282 343

300 12 320 328 370 378 332 368 395 406 332 393

350 14 355 363 415 423 367 413 436 450 367 434

400 16 406 414 471 486 418 469 487 510 418 485

450 18 456 464 530 541 468 528 556 575 468 554

500 20 509 517 583 596 521 581 609 630 521 607

550 22 560 568 635 650 572 633 665 684 572 663

600 24 611 619 684 700 623 682 716 734 623 714

3.92.0A

Type

A Type

Notes: (1) These dimensions are designed by NICHIAS Corporation to fit to JIS B 2238-1996 flanges.(2) Applicable flanges are those specified in the following standards.

JIS B2220-2004 “Steel welding pipe flanges“JIS B2239-2004 “Cast iron pipe flanges“JIS B2240-1996 “General rules for copper alloy pipe flanges“JIS B2241-1986 “Basic dimensions of aluminum alloy pipe flanges“JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

(3) These gaskets cannot be used for the following services since inner diameter of gasket is smallerthan flange inner diameter.Slip-on flanges as per JIS B 2220, 10K, 16K and 20K for 10~40A Slip-on flanges as per JIS B 2220, 20K and 30K for 10~65A

Standard

Dim

ension Charts

103

For NAFLONTM Lined Piping NAFLONTM PTFE Cushion Gasket (TOMBO� No.9010-NA-FG-7)

Nominal Pipe Size For JIS 10K

A B D1 D4 t TType

Dimension Chart 36 Unit : A

15 1／2 16 58

20 3／4 22 63

25 1 27 74

40 11／2 45 89

50 2 58 104

65 21／2 71 124

80 3 85 134

100 4 104 159

125 5 128 189

150 6 153 220

200 8 202 270

250 10 251 333

300 12 300 378

1.5 2.3

AS-7 Type

A-7 Type

AS-7 Type A-7 Type

Notes: (1) TOMBO No.9010-NA-FG-7 is a PTFE jacket type gasket used for anti-corrosion NAFLON lined piping.

If a solid type product is required, please use the TOMBO No.9007 NAFLON PTFE cut gasket or TOMBO No.9007-LCNAFLON Low creap gasket.

For D1, D4 and t, follow same dimensions as above chart.

(2) Applicable flanges are JIS 10K flanges for NAFLON lined piping, 15A-300A

NAFLON PTFE Cut Gasket（TOMBO No.9007）

NAFLON Low Creap Gasket（TOMBO No.9007-LC）

For JIS Flanges NAFLONTM PTFE Cushion Gasket (Outer periphery seald)(TOMBO� No.9010-NA-R-A)

104

Sta

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Dimension Chart 37 Unit : A

Nominal Pipe Size

A

010

015

020

025

032

040

050

065

080

090

100

125

150

175

200

225

250

300

350

400

450

500

550

600

D１

013

017

022

028

036

042

053

066

079

091

103

135

162

184

210

236

270

316

351

410

455

511

564

616

D２

020

024

029

t1

2.0

（2.4）

t2

2.8

（3.2）

035

043

049

060

073

086

098

110

142

169

191

217

243

277

323

358

417

462

518

571

623

D３

Nominal Pressure

5K

033

038

043

053

066

071

081

106

117

127

137

172

202

228

248

273

313

358

401

461

521

571

629

679

10K

041

046

051

062

072

077

092

112

122

132

147

178

208

233

258

278

321

366

411

474

529

584

638

688

D4

Nominal Pressure

5K

045

050

055

065

078

083

093

118

129

139

149

184

214

240

260

285

325

370

413

473

533

583

641

691

10K

053

058

063

074

084

089

104

124

134

144

159

190

220

245

270

290

333

378

423

486

541

596

650

700

D4

t2

D3

D1

D2

t1

D4

t2

D3

D1

D2

t1

A-7 Type A-8 Type

Notes: (1) These dimensions are designed by NICHIAS Corporation to fit to JIS B 2238-1996 flanges.

(2) Applicable flanges are those specified in the following standards.

JIS B2220-2004 “Steel welding pipe flanges“

JIS B2239-2004 “Cast iron pipe flanges“

JIS B2240-1996 “General rules for copper alloy pipe flanges“

JIS B2241-1986 “Basic dimensions of aluminum alloy pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

(3) Dimension in brackets are applicable for TOMBO No.9010-NA-A-6/-NA-A-8.

For JIS Flanges NAFLONTM PTFE Cushion Gasket (Outer periphery seald)(TOMBO� No.9010-NA-R-AS)

105

Standard

Dim

ension Charts

Dimension Chart 38 Unit : A

Nominal Pipe Size

A

010

015

020

025

032

040

050

065

080

090

100

125

150

175

200

225

250

300

350

400

450

500

550

600

D１

013

017

022

028

036

042

053

066

079

091

103

143

179

198

224

249

292

332

372

425

475

525

574

624

D２

016

020

025

t1

2.0

（2.4）

t2

2.8

（3.2）

031

039

045

056

069

082

094

106

146

182

201

227

252

295

335

375

428

478

528

577

627

D３

Nominal Pressure

5K

033

038

043

053

066

071

081

106

117

127

137

172

202

228

248

273

313

358

401

461

521

571

629

679

10K

041

046

051

062

072

077

092

112

122

132

147

178

208

233

258

278

321

366

411

474

529

584

638

688

D4

Nominal Pressure

5K

045

050

055

065

078

083

093

118

129

139

149

184

214

240

260

285

325

370

413

473

533

583

641

691

10K

043

058

063

074

084

089

104

124

134

144

159

190

220

245

270

290

333

378

423

486

541

596

650

700

D4

t2

D3

D1

D2

t1

D4

t2

D3

D1

D2

t1

AS-7 Type AS-8 Type

Notes: (1) These dimensions are designed by NICHIAS Corporation to fit to JIS B 2238-1996 flanges.

(2) Applicable flanges are those specified in the following standards.

JIS B2220-2004 “Steel welding pipe flanges“

JIS B2239-2004 “Cast iron pipe flanges“

JIS B2240-1996 “General rules for copper alloy pipe flanges“

JIS B2241-1986 “Basic dimensions of aluminum alloy pipe flanges“

JIS B2238-1996 “General rules for steel welding pipe flanges“ (Discontinued)

(3) Dimension in brackets are applicable for TOMBO No.9010-NA-AS-6/-NA-AS-8.

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106

JIS 10K Plastic Flanges EbilonTM Gasket

Nominal Pipe Size Gaskets

A B

Outerdiameter

A

Innerdiameter

B

Seal section diameter Bolts

C D PCD n-φk

Reference

E

Thickness

T

Dimension Chart 39 Unit : A

15 1／2B 93 18 5 26 41 70 4-15 53

20 3／4 98 22 5 32 47 75 4-15 58

25 1 123 30 5 38 53 90 4-19 68

30 11／4 133 37 5 50 65 100 4-19 78

40 11／2 138 43 5 54 69 105 4-19 82

50 2 153 54 5 68 83 120 4-19 96

65 21／2 173 69 5 86 101 140 4-19 116

80 3 183 80 5 98 112 150 8-19 124

100 4 208 102 5 120 138 175 8-19 150

125 5 248 127 5 145 166 210 8-23 180

150 6 278 150 5 168 190 240 8-23 210

200 8 328 198 5 216 247 290 12-23 260

250 10 398 249 5 270 306 355 12-25 326

300 12 443 300 5 324 352 400 16-25 372

Notes: (1) Applicable gaskets are Ebilon Gaskets TOMBO No.9013, 9013-D , 9013-EP and 9013-DEP.

(2) These dimensions are designed by NICHIAS Corporation to fit to plastic flanges based on JIS B 2210 10K.

(3) Applicable flanges are 10K plastic (PVC) flanges manufactured by Kubota Corp., Sekisui Chemical Co., Ltd.,

Asahi Organic Chemicals Industry Co., Ltd., etc.

(4) When these gaskets are used for JIS B 2210 and B 2220 flanges, the sealing section may be smaller than the flange inner diameter.

FOR JIS 10K Flanges Electrical Insulation Bolt Kit (TOMBO� No.9910/9910H, TOMBO� No.9011-NA-E5)

107

Standard

Dim

ension Charts

Dimension Chart 40 Unit : A

Nominal pipe size Insulation bolt Hexagonal

nutInsulating washerMetal washer Insulating gasket Number

of bolts

Width ofRingA

Width ofRingd1

Width ofRingL

Width ofRingRs

t

TOMBO No.9910

TOMBO No.9910-H

Width ofRingH

Width ofRingd2

Width ofRingD2

Width ofRingt1

Width ofRingt2

Width ofRingd3

Width ofRingD5

Width ofRingt3

Width ofRingN

10152025324050658090100 125 150 175 200 225 250300350400450500550 60065070075080085090010001100120013501500

M12M12M12M16M16M16M16M16M16M16M16M20M20M20M20M20M22M22M22M24M24M24M30×3M30×3M30×3M30×3M30×3M30×3M30×3M30×3M36×3M36×3M36×3M42×3M42×3

7070758085858590909090105 105 105 105 105 120120125130135135150150150150160160160160180180185205205

363639404343434848484855555555556262677277778282828286868686929297110110

0.7

1.0

1010101313131313131313161616161618181819191924242424242424242929293434

13.013.013.017.017.017.017.017.0 17.017.017.021.021.021.021.021.023.023.023.025.025.025.031.031.031.031.031.031.031.031.037.037.037.043.043.0

2424243030303030303030373737373739393944444456565656565656566666667878

44444444444444446666666666666666666

2.52.52.53.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.04.04.04.04.04.04.04.04.04.04.04.05.05.05.07.07.0

13162227364558768596104 129 153 178 202 225 251 300 373423 473 523573 623 670 725 775 825 875 925 1,030 1,130 1,230 1,390 1,545

535863748489104 124 134 144 159 190 220 245 270 290 333 378 423 486 541 596 650 700 750 810 870 920 970 1,020 1,124 1,234 1,344 1,498 1,658

2.52.52.52.5 2.5 2.5 3.0 3.0 3.0 3.0 3.03.03.03.03.03.03.03.03.03.03.03.03.03.03.83.83.83.83.83.83.83.83.83.83.8

WidthRingtype

A

444444448888812121212161616202020242424242828282828323640

＊This table is applicable for the flanges specified in JIS B2238.

＊If higt nut such as the one whose height is greater or equal th the nominal diameter of bolt is used, the length of bolt should be greater accordingly.

＊If there is possibility that scale in the fluid may cause electrical conducting, please consult with us. We would design gasket in special size.

＊The size of TOMBO No.9910 is the same as that of TOMBO No.9910-H except for "t" that stands for the thickness of insulating sleeve.

＊If service temperature is over 150℃, TOMBO No.9910-H/9007-LC should be used. Please consult with us about the size of the TOMBO No.9007-LC.

1.5

B

d1

rs

L

t

H

d1D2d2

t2

Metal

D2d2

t1

Insulationt3

d3D5

d3D5

t3t3

Insulation bolt Hexagonal nut Insulating washerMetal washer

Insulating gasket

108

Sta

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FOR JIS 20K Flanges Electrical Insulation Bolt Kit(TOMBO� No.9910/9910H, TOMBO� No.9011-NA-E5)

Dimension Chart 41 Unit : A

Nominal pipe size Insulation bolt Hexagonal

nutInsulating washerMetal washer Insulating gasket Number

of bolts

Width ofRingA

Width ofRingd1

Width ofRingL

Width ofRingRs

t

TOMBO No.9910

TOMBO No.9910-H

Width ofRingH

Width ofRingd2

Width ofRingD2

Width ofRingt1

Width ofRingt2

Width ofRingd3

Width ofRingD5

Width ofRingt3

Width ofRingN

10152025324050658090100 125 150 200 250300350400450500550 600650700750800850900

M12M12M12M16M16M16M16M16M20M20M20M22M22M22M24M24M30×3M30×3M30×3M30×3M36×3M36×3M45×3M45×3M52×3M52×3 M52×3 M52×3

70707580858585 90100110 110125 125 125145145170 175 190 190 210 210 240 240 270 270 280 280

3636394043434348525656696969838396101 112112 120 120 140 140 154 154 162 162

0.7

1.0

10101013131313131616161818181919242424242929363642424242

13.013.013.017.017.017.017.017.021.021.021.023.023.023.025.025.031.031.031.031.037.037.046.046.054.054.054.054.0

24242430303030303737373939394444565656566666858598989898

4444444444466666666666666666

2.52.52.53.03.03.03.03.03.03.03.03.03.03.04.04.04.04.04.04.05.0 5.0 7.0 7.0 8.0 8.0 8.0 8.0

13162227364558768596104 129 153 202 280 320 373 423 473 523573 623 670 725 775 825 875 925

535863748489104 124 140 150 165 203 238 283 356 406 450 510 575 630 684 734 805 855 918 978 1,038 1,088

2.52.52.52.52.52.53.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.03.83.83.83.83.83.8

WidthRingtype

A

44444488888812121216161620202024242424242428

＊This table is applicable for the flanges specified in JIS B2238.

＊If higt nut such as the one whose height is greater or equal th the nominal diameter of bolt is used, the length of bolt should be greater accordingly.

＊If there is possibility that scale in the fluid may cause electrical conducting, please consult with us. We would design gasket in special size.

＊The size of TOMBO No.9910 is the same as that of TOMBO No.9910-H except for "t" that stands for the thickness of insulating sleeve.

＊If service temperature is over 150℃, TOMBO No.9910-H/9007-LC should be used. Please consult with us about the size of the TOMBO No.9007-LC.

1.5B

d1

rs

L

t

H

d1D2d2

t2

Metal

D2d2

t1

Insulationt3

d3D5

d3D5

t3t3

Insulation bolt Hexagonal nut Insulating washerMetal washer

Insulating gasket

Gaskets

INDEX

110

NU

ME

RIC

AL

IND

EX

1050 Rubber Cut Gasket 561051 Cloth Reinforced Rubber Cut Gasket 561120 CLINSIL-Top 61200 Graseal Gasket 401210-A Graseal Gasket MI-A 401215 Graseal Gasket PM 401215-A Graseal Gasket PM-A 401220 Graseal Gasket Tape (Plain) 411221 Graseal Gasket Tape (Crinkled) 411364 NA Gasket Tape 551368 NA Tadpole Gasket Tape 551368-G NA Tadpole Gasket Tape (Finished with graphite) 551374 NA Manhole Gasket 541374-G NA Manhole Gasket (Treated with graphite) 541378 NA Gasket with core 541400-ST Super Manhole Gasket-ST 541400-TH FF Manhole Gasket 541400-THG FF Manhole Gasket (Treated with graphite) 541600 Metakote 591608 Metafoam 591804-GR Series Graseal Vortex Gasket 141804-NA Series NA Vortex Gasket 141806-GH Series Vortex Gasket-GH 161806-GM Series Vortex Gasket-GM 161806-GS Series Vortex Gasket-GS 161809 Series Graseal Vortex Gasket L 171809-AL Series Graseal Vortex Gasket for Aluminum Flanges 171841 NA Metal Jacketed Gasket 371841-FI NA Metal Jacketed Gasket for High-temperature Applications 371850 Double Cone Gasket 321850 Brigeman Gasket 321850-BX BX Ring Gasket 321850-C Octagonal Ring Joint Gasket 311850-D Delta Gasket 321850-L Lens type Gasket 321850-O Metal O-Ring 321850-P Plain Metal Gasket 301850-RX RX Ring Gasket 321850-V Oval Ring Joint Gasket 311861 NA Corrugated Metal Jacketed Gasket 371861-FI NA Corrugated Metal Jacketed Gasket for High-temperature Applications 371880-GR CMGC Gasket 371890 Serrated Metal Gasket 301938 CLINSIL-UF 81991-NF CLINSIL-NF 81993 CLINSIL-Super 71995 CLINSIL-Brown 7

2670 Rubber O-Ring 56

6526 NA Beater Sheet 596750-P Vermosul Sheet-P 59

6000～

2000～

1000～

9007 NAFLON PTFE Cut Gasket 429007-FD NAFLON FD Gasket 449007-G20 NAFLON PTFE Glass Fiber Filled Cut Gasket 429007-GL NAFLON PTFE Special Filler Filled Cut Gasket (Soft) 449007-LC NAFLON PTFE Low Creep Gasket 439007-LP NAFLON PFA Gasket 459007-SC NAFLON PTFE Special Filler Filled Cut Gasket 439010 NAFLON PTFE Cushion Gasket 46-499010-NA-E5 Electrical Insulation Gasket 519013 Ebilon Gasket (PTFE Jacketed) 579013-D Ebilon Gasket (PTFE Jacketed) for Electrolytic Cells 579013-DEP Ebilon Gasket (Solid Rubber) for Electrolytic Cells 579013-EP Ebilon Gasket (Solid Rubber) 579014 Saniclean Gasket 589022-A NAFLON PTFE Covered Rubber O-Ring 529022-PFA NAFLON PFA Covered Rubber O-Ring 529028 NAFLON PTFE O-Ring 529037 NAFLON SP Packing 529090 Series NAFLON Vortex Gasket 159094 NAFLON Manhole Gasket 549096 NICHIAS Soft Seal 529105 Aqua-tight Paste 609106 Oil-tight Paste 609120 Anti-corrosion Paste 609200P Standard Type Metal O-Seal 349200V Vent Hole Type Metal O-Seal 349400 NAFLON Paste 619401 PTFE Grease 619910 NAFLON PVDF Electrical Insulation Bolt Kit 509910-H NAFLON PTFE Electrical Insulation Bolt Kit 50

Irregular-shape Vortex Gasket 18Heat Exchanger Vortex Gasket with Pass Ribs 18Special Construction Vortex Gasket 19Metal Jacketed Gaskets with Graseal Tape 38Heat Exchanger Gasket 38

Other

9000～

■NUMERICAL INDEX

TOMBO No. Product Name Page TOMBO No. Product Name Page

111

NU

ME

RIC

AL IN

DE

X

Anti-corrosion Paste 9120 60Aqua-tight Paste 9105 60

Brigeman Gasket 1850 32BX Ring Gasket 1850-BX 32

CLINSIL-Brown 1995 7CLINSIL-NF 1991-NF 8CLINSIL-Super 1993 7CLINSIL-Top 1120 6CLINSIL-UF 1938 8Cloth Reinforced Rubber Cut Gasket 1051 56CMGC Gasket 37

Delta Gasket 1850-D 32Double Cone Gasket 1850 32

Ebilon Gasket (PTFE Jacketed) 9013 57Ebilon Gasket (PTFE Jacketed) for Electrolytic Cells 9013-D 57Ebilon Gasket (Solid Rubber) 9013-EP 57Ebilon Gasket (Solid Rubber) for Electrolytic Cells 9013-DEP 57Electrical Insulation Gasket 9010-NA-E5 51

FF Manhole Gasket 1400-TH 54FF Manhole Gasket (Treated with graphite) 1400-THG 54

Graseal Gasket 1200 40Graseal Gasket MI-A 1210-A 40Graseal Gasket PM 1215 40Graseal Gasket PM-A 1215-A 40Graseal Gasket Tape (Crinkled) 1221 41Graseal Gasket Tape (Plain) 1220 41Graseal Vortex Gasket 1804-GR Series 14Graseal Vortex Gasket for Aluminum Flanges 1809-AL Series 17Graseal Vortex Gasket L 1809 Series 17

Heat Exchanger Gasket 38Heat Exchanger Vortex Gasket with Pass Ribs 18

Irregular-shape Vortex Gasket 18

Lens type Gasket 1850-L 32

Metakote 1600 59Metafoam 1608 59Metal Jacketed Gaskets with Graseal Tape 38Metal O-Ring 1850-O 32

M

L

I

H

G

F

E

D

C

B

A

NA Beater Sheet 6526 59NA Corrugated Metal Jacketed Gasket 1861 37NA Corrugated Metal Jacketed Gasket for High-temperature Applications 1861-FI 37NA Gasket Tape 1364 55NA Gasket with core 1378 54NA Manhole Gasket 1374 54NA Manhole Gasket (Treated with graphite) 1374-G 54NA Metal Jacketed Gasket 1841 37NA Metal Jacketed Gasket for High-temperature Applications 1841-FI 37NA Tadpole Gasket Tape 1368 55NA Tadpole Gasket Tape (Finished with graphite)1368-G 55NA Vortex Gasket 1804-NA Series 14NAFLON FD Gasket 9007-FD 44NAFLON Manhole Gasket 9094 54NAFLON Paste 9400 61NAFLON PFA Covered Rubber O-Ring 9022-PFA 52NAFLON PFA Gasket 9007-LP 45NAFLON PTFE Covered Rubber O-Ring 9022-A 52NAFLON PTFE Cushion Gasket 9010 46-49NAFLON PTFE Cut Gasket 9007 42NAFLON PTFE Electrical Insulation Bolt Kit 9910-H 50NAFLON PTFE Glass Fiber Filled Cut Gasket 9007-G20 42NAFLON PTFE Low Creep Gasket 9007-LC 43NAFLON PTFE O-Ring 9028 52NAFLON PTFE Special Filler Filled Cut Gasket 9007-SC 43NAFLON PTFE Special Filler Filled Cut Gasket (Soft) 9007-GL 44NAFLON PVDF Electrical Insulation Bolt Kit 9910 50NAFLON SP Packing 9037 52NAFLON Vortex Gasket 9090 Series 15NICHIAS Soft Seal 9096 52

Octagonal Ring Joint Gasket 1850-C 31Oil-tight Paste 9106 60Oval Ring Joint Gasket 1850-V 31

Plain Metal Gasket 1850-P 30PTFE Grease 9401 61

Rubber Cut Gasket 1050 56Rubber O-Ring 2670 56RX Ring Gasket 1850-RX 32

Saniclean Gasket 9014 58Serrated Metal Gasket 1890 30Special Construction Vortex Gasket 19Standard Type Metal O-Seal 9200P 34Super Manhole Gasket-ST 1400-ST 54

Vent Hole Type Metal O-Seal 9200V 34Vermosul Sheet-P 6750-P 59Vortex Gasket-GH 1806-GH Series 16Vortex Gasket-GM 1806-GM Series 16Vortex Gasket-GS 1806-GS Series 16

V

S

R

P

O

N

■ALPHABETICAL INDEX

Product Name TOMBO No. Page Product Name TOMBO No. Page

Printed in Japan on Recycled paper E03-0901-01-FT-BU-RE-0703