F 7212: 2004

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JIS F 7212-2004

Shipbuilding Tube glass type level gauges with self closing valves 1. Scope This Japanese Industrial Standard specifies the tube glass type level gauges with self closing valves (hereinafter referred to as level gauge) to be used for marine water tanks and oil tank to which the requirements of SOLAS do not apply. 2. Reference Standards The following standards form part of this standard when quoted. The latest versions (including appendix) shall be adopted.

JIS B 2240 General rules for copper alloy pipe flanges JIS B 2401 O-rings JIS B 2704 Helical compression and extension springs Requirements for design,

performance test method JIS F 7102 Shipbuilding Piping system in machinery space Application for gaskets and

packings JIS F 7400 Shipbuilding Valves and cocks General inspection requirement JIS G 3101 Rolled steels for general structure JIS G 3506 High carbon steel wire rods JIS G 3522 Piano wires JIS G 5501 Grey iron casting JIS H 3100 Copper and copper alloy sheets, plates and strips JIS H 3250 Copper and copper alloy rods and bars JIS H 3260 Copper and copper alloy wires JIS H 5120 Copper and copper alloy castings JIS K 6717-1 Plastics Poly (methyl methacrylate) (PMMA) molding and extrusion materials

Part 1: Designation system and basis for specifications JIS K 6717-2 Plastics Poly (methyl methacrylate) (PMMA) molding and extrusion materials

Part 2: Preparation of test specimens and determination of properties JIS K 6719-1 Plastics Polycarbonate (PC) molding and extrusion materials

Part 1: Designation system and basis for specifications JIS K 6719-2 Plastics Polycarbonate (PC) molding and extrusion materials

Part 2: Preparation of test specimens and determination of properties JIS R 3206 Tempered glass

3. Classification The level gauge shall be classified into A (for steel pipes), A (for copper pipes), B and C Types according to the shape of upper body. 4. Construction, shape and dimensions The construction, shape and dimensions of level gauge shall be as shown in Fig. 1. However, Fig. 1 shows the level gauge with a joint. The permissible deviation of thickness of the upper and lower bodies and the joint body shall, as a rule, be within 0.5 mm. The dimensions of use tubular glass shall be 160.5 mm in outside diameter. 5. Materials The materials of level gauges shall be as shown in Fig. 2.

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6. Tests and inspections 6.1 General tests and inspections Following test shall be carried out in accordance with the requirements of JIS F 7400. a) Material inspection b) Visual inspection c) Dimensional inspection d) Assembly inspection e) Hydraulic inspection The hydraulic inspection shall be carried out at the following test pressures:

1) Hydraulic inspection for upper and lower bodies, and joint bodies 0.7 MPa 2) Watertight inspection for valve seat 0.15 MPa from flange side

6.2 Operational inspection The operation of level gauges shall be verified by opening and shutting the valve of the level gauges after filling the upper body (upper body and lower body in case of C type) with oil where no abnormality shall be caused. 6.3 Inspection for spring The inspection for spring shall be in accordance with JIS B 2704. 7. Designation The level gauge shall be designated by title of the standard, classification and number of joints or symbol. JIS number may be used in place of the title. The nipple dimensions of the upper body of Type A and materials shall be specified by purchaser at each time.

Example: For type A level gauge without joint Marine tube glass type level gauges with self closing valves Type A without joint or FGLS-A 0 or JIS F 7212-A0 number of joints classification Marine oil level gauges with self closing valve

Reference: The protector and support are not specified, but exemplified in Reference Figs. 2 and 3. For ordering

these pieces including tubular glasses, it is preferable to use the following designation of Example 1, 2.

The designation includes the title of the standard, class, number of joints, length, materials and number of tubular glasses, and shape of protector or support, or symbol.

Example 1. For a type A oil level gauge with a joint, two tubular glasses of 300 mm in length and two protectors:

Marine oil level gauge with self-closing valve, Type A with a Joint 300K2 or FGLS-A1-G 300 K 2 or JIS F 7212-A1-G300 K 2 number of tubular glasses and protectors shape of protector length of tubular glass Material of tubular glass (G: tempered glass)

Example 2. For a type A oil level gauge with a Type P support, one tubular glasses of 1200 mm in

length without joint: Marine tubular glass oil level gauge with self-closing valve,

P Type A without joint - A 1200 P 1

G Shape and number of supports Material of gauge tube P: Polycarbonate resins A: Acrylic resins G: Tempered glass

P P or FGLS-A0-A 1200 P1 or JIS F 7212 A0-A 1200 P1

G G

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8. Marking The level gauges shall be marked with the following particulars on the upper and lower bodies and the surface of joint. a) Nominal pressure 16K or 5K on the upper and lower body b) Fitting direction Top on the upper part of joint c) Manufacturers name or mark d) Year and month of manufacture

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Unit: mm Type A (for copper pipes) Type B Type C

Type A (for steel pipes)

Reference Particular and materials of

cylindrical coil spring Calculated mass (approx.) Material SWPA

Unit: kg Diameter of wire (mm) 2 Type A 0.75 Mean dia. of coil (mm) 22 Type B 0.82 Effective No. of coil 6

Upp

er

body

Type C 1.38 Direction of twist right Joint 0.81 Free length (mm) 46 Lower body 1.51 Length (mm) 32

Deflection (mm) 14

At s

ettin

g co

nditi

on

Load N 3710% Load at value fully opened N

50

Stick test load N 82 Reference Shapes of O-ring recess

Note: Dimensions asterisked may be changed to suitable length according to the inserted length of packing. Remarks: 1. The dimensions of the flanges shall conform to the requirements for 16 K of JIS B 2240, but may conform

to the requirements of 5 K of JIS B 2240 when specified by the purchaser. 2. The tubular glass and protector shall be specified by the purchaser. 3. O ring shall conform to JIS B 2401 Type 1-AP12. 4. The values in parentheses are the dimensions for those without joint.

Fig. 1 Construction, shape and dimensions (with joints)

Protector

Tubular glassLength = h1-25

Protector

Tubular glass Length = h-30 (Length = H-30)

Lift

Approx. 108.4

Tubular glass Length = h1-25 (Length = H1-30)

Tubular glass Length = h2-40 (Length = H1-45)

Lift Approx. 4.4

TW16 Double threads

Approx. 108 (when fully opened)

O-ring

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Type A Type B Type C

No. Component Material 1 Type A upper body JIS H 5120 CAC406

For steel pipes JIS G 3101 SS400 2

Nip

ple

For copper pipes JIS H 5120 CAC406 or JIS H 3250 C1100BD

3 Packing gland 4 Gland nut

JIS H 5120 CAC406 or JIS H 3250 C3771BD

5 Union nut JIS G 3101 SS400 or JIS H 5120 CAC406

6 Packing JIS F 7102 10GPR 7 Gasket 8 Gasket

JIS F 7102 350SJR

9 Plug JIS H 5120 CAC406 or JIS H 3250 C3771BD

10 Joint 11 Lower body

JIS H 5120 CAC406

12 Valve body JIS H 5120 CAC406 or JIS H 3250 C3771BD or C3771BE

13 Valve stem JIS H 3250 C3771BD or C3771BE

14 Cover 15 Stopper of ring

JIS H 5120 CAC406 or JIS H 3250 C3771BD

16 Cylindrical oil spring JIS G 3522 SWP-A 17 Handle JIS G 3101 SS400 18 O ring JIS B 2401 Class 1-A 19 Hexagon nut 20 Hexagon nut

JIS H 3250 C3771BD

21 Tongued washer JIS H 3100 C1100P or C2600P22 Cross recessed oval

counter sunk head machine screw

JIS H 3260 C2700W

23 Type B upper body 24 Type C upper body

JIS H 5120 CAC406

25 Valve stem JIS H 3250 C3771BD or C3771BE

26 Packing stopper 27 Packing stopper nut 28 Ring

JIS H 5120 CAC406 or JIS H 3250 C3771BD

29 Handle JIS G 5501 FC200 30 Hexagon nut JIS H 3250 C3771BD 31 Spring washer JIS G 3506 SWRH42B 32 Split pin JIS H 3260 C2600W 33 Packing JIS F 7102 10GPR 34 Tubular glass gauge for oil

level gauge JIS K 6719-1 and -2 Polycarbonate resins, or JIS K 6717-1 and -2 Acrylic resins, or JIS R 3206 Tempered glass

Fig. 2 Material of level gauge

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Type Type A Type B Type C

Symbol FGLS-A 0 FGLS-A 2 FGLS-B 0 FGLS-B 2 FGLS-C 0 FGLS-C 2 Assembly drawings

Calculated mass (kg)

2.26 3.88 2.33 3.95 2.89 4.51

Dimensions for H and H1 (tempered tubular glasses)

Unit: mm Symbol FGLS-A or FGLS-B FGLS-C

No. of joints 0 1 2 3 4 5 0 1 2 3 4 5 No. of glasses 1 2 3 4 5 6 1 2 3 4 5 6 300 240 330 655 980 1305 1630 1955 345 670 995 1320 1645 1970

400 340 430 855 1280 1705 2130 2555 445 870 1295 1720 2145 2570

Leng

th o

f on

e gl

ass

500 Leng

th o

f on

e pr

otec

tor

440 530 1055 1580 2105 2630 3155 545 1070 1595 2120 2645 3170

(L) 600 (L) 540 630 1255 1880 2505 3130 3755 645 1270 1895 2520 3145 3770Remarks: 1. The assembly drawing and dimensions for H and H1 are shown as examples, and the purchaser may specify

number of joints; number, length and materials of tubular glasses; and the protector (Refer to Reference Figs. 2).

2. The dimensions H and H1 for the joint of one or more are shown in the case where the tubular glasses of same length are combined, but if necessary, glasses of different length may be used in properly combination.

3. The maximum length of one tubular glass is preferably 600 mm for the inorganic or tempered glass to prevent fracture, and 2000 mm for the glass taking its thermal expansion into account. In these cases, however, it is desirable to fit the glass supports at the maximum intervals of 600 mm (p).

4. When the length of tubular glass is equal, the dimensions for H and H1 are as follows: The dimensions h, h1 and h2 for the length (L) of the tubular glass: h =L + 30 h1 =L + 25 h2=L + 40 for cases without joint H=L+30 H1=L+45 5. The calculated mass is the weight of upper body, lower valve and joint, and the weight of tubular glass and

protector is not inclusive. Reference Fig. 1 Example of assembly

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Unit: mm Example 1: Type H Example 2: Type J (with brass hinge) (without brass hinge)

Reference Fig. 2 Protector

pan-head machine screw) pan-head machine screw)

Brazing

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Unit: mm Example 3: Type K Example 4: Type J (40 20 2.3 light channel steel) (20 20 3 angle section steel)

Reference Fig. 2 Protector (contd)

Approx. Approx.

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The following tubular glass supports should preferably be used in case of the organic tubular glass of level gauge without joint to prevent vibration.

Example: Type P Unit: mm

Reference Fig. 3 Support

Related standards JIS F 7211 Shipbuilding Tube glass type level gauges with valves JIS F 7215 Shipbuilding Flat glass oil level gauges JIS F 7216 Shipbuilding Self closing valves for oil level gauges ISO 5208 Industrial valves Pressure testing of valves

Approx. 1

Tubular glass

TOP PAGEJIS F with"*"mark is harmonized standards to corresponding IEC and ISO standard underwritten.JIS[ENGINES & VALVES]*F0053:00-Shipbuilding - Indication of details on the general arrangement plans of ships(IDT ISO 1964:87)F0090:99-Ship's safty signs*F0401:99-Shipbuilding - Terminology and definition of output of internal combustion propulsion engines(MOD ISO 3046-1:95)F0404:85-Calculation methods for main diesel engine output at sea trialF0406:97-Shipbuilding - Guidelines for instruction of diesel engines*F0407:98-Shipbuilding - Engine-room ventilation in diesel-engined ships - Design requirements and basis of calculations (IDT ISO/DIS 8861:96)*F0408:99-Standard of air-conditioning and ventilation of machinery control-rooms on board ships - Design conditions and basis of calculations(IDT ISO 8862:87)F0411:98-Outline dimensions of marine engine control consoles*F0412:98-Alarming and indicating system of equipment used for engine department in ships(MOD ISO 2412:82)F0414:02-Shipbuilding - 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Cast iron 5K angle valvesF7307:96-Shipbuilding - Cast iron 10K globe valvesF7308:96-Shipbuilding - Cast iron 10K angle valvesF7309:96-Shipbuilding - Cast iron 16K globe valvesF7310:96-Shipbuilding - Cast iron 16K angle valvesF7311:96-Shipbuilding - Cast steel 5K globe valvesF7312:96-Shipbuilding - Cast steel 5K angle valvesF7313:96-Shipbuilding - Cast steel 20K globe valvesF7314:96-Shipbuilding - Cast steel 20K angle valvesF7315:96-Shipbuilding - Cast steel 30K globe valvesF7316:96-Shipbuilding - Cast steel 30K angle valvesF7317:96-Shipbuilding - Cast steel 40K globe valvesF7318:96-Shipbuilding - Cast steel 40K angle valvesF7319:96-Shipbuilding - Cast steel 10K globe valvesF7320:96-Shipbuilding - Cast steel 10K angle valvesF7329:96-Shipbuilding - Forged steel 40K globe valvesF7330:96-Shipbuilding - Forged steel 40K angle valvesF7333:96-Shipbuilding - Cast iron hose valvesF7334:96-Shipbuilding - Bronze hose valvesF7335:96-Shipbuilding - Hose connections and fittingsF7336:96-Shipbuilding - Forged steel globe air valvesF7337:96-Shipbuilding - Forged steel angle air valvesF7340:96-Shipbuilding - Cast steel globe air valvesF7341:96-Shipbuilding - Forged steel 100K pressure gauge valvesF7343:96-Shipbuilding - Bronze 20K pressure gauge cocksF7346:96-Shipbuilding - Bronze 5K globe valves (union bonnet type)F7347:96-Shipbuilding - Bronze 5K angle valves (union bonnet type)F7348:96-Shipbuilding - Bronze 16K globe valves (union bonnet type)F7349:96-Shipbuilding - Bronze 16K angle valves (union bonnet type)F7350:96-Shipbuilding - Hull cast steel angle valvesF7351:96-Shipbuilding - Bronze 5K screw-down check globe valvesF7352:96-Shipbuilding - Bronze 5K screw-down check angle valvesF7353:96-Shipbuilding - Cast iron 5K screw-down check globe valvesF7354:96-Shipbuilding - Cast iron 5K screw-down check angle valvesF7356:96-Shipbuilding - Bronze 5K lift check valvesF7358:96-Shipbuilding - Cast iron 5K lift chek globe valvesF7359:96-Shipbuilding - Cast iron 5K lift check angle valvesF7360:96-Shipbuilding - Hull cast steel gate valvesF7363:96-Shipbuilding - Cast iron 5K gate valvesF7364:96-Shipbuilding - Cast iron 10K gate valvesF7365:96-Shipbuilding - Hull cast steel globe valvesF7366:96-Shipbuilding - Cast steel 10K gate valvesF7367:96-Shipbuilding - Bronze 5K rising stem type gate valvesF7368:96-Shipbuilding - Bronze 10K rising stem type gate valvesF7369:96-Shipbuilding - Cast iron 16K gate valvesF7371:96-Shipbuilding - Bronze 5K swing check valvesF7372:96-Shipbuilding - Cast iron 5K swing check valvesF7373:96-Shipbuilding - Cast iron 10K swing check valvesF7375:96-Shipbuilding - Cast iron 10K screw-down check globe valvesF7376:96-Shipbuilding - Cast iron 10K screw-down check angle valvesF7377:96-Shipbuilding - Cast iron 16K screw-down check globe valvesF7378:96-Shipbuilding - Cast iron 16K screw-down check angle valvesF7379:96-Shipbuilding - Brass 30K stop valves with bite joint(s)F7381:96-Shipbuilding - Bronze 5K flanged cocksF7387:96-Shipbuilding - Bronze 16K cocksF7388:96-Shipbuilding - Bronze 20K globe valvesF7389:96-Shipbuilding - Bronze 20K angle valvesF7390:96-Shipbuilding - Cocks with lockF7398:96-Shipbuilding - Fuel oil tank self-closing drain valvesF7399:02-Shipbuilding - Oil tank emergency shut-off valvesF7400:96-Shipbuilding - Valves and cocks - General inspection requirementF7403:96-Shipbuilding - Hull bronze globe valvesF7404:96-Shipbuilding - Hull bronze angle valvesF7409:96-Shipbuilding - Bronze 16K screw-down check globe valvesF7410:96-Shipbuilding - Bronze 16K screw-down check angle valvesF7411:96-Shipbuilding - Bronze 5K screw-down check globe valves (Union bonnet type)F7412:96-Shipbuilding - Bronze 5K screw-down check angle valves (Union bonnet type)F7413:96-Shipbuilding - Bronze 16K screw-down check globe valves (Union bonnet type)F7414:96-Shipbuilding - Bronze 16K screw-down check angle valves (Union bonnet type)F7415:96-Shipbuilding - Bronze 5K lift check globe valves (Union bonnet type)F7416:96-Shipbuilding - Bronze 5K lift check angle valves (Union bonnet type)F7417:96-Shipbuilding - Bronze 16K lift check globe valves (Union bonnet type)F7418:96-Shipbuilding - Bronze 16K lift check angle valves (Union bonnet type)F7421:96-Shipbuilding - Forged steel 20K globe valvesF7422:96-Shipbuilding - Forged steel 20K angle valvesF7425:96-Shipbuilding - Cast iron valvesF7426:96-Shipbuilding - Cast steel valvesF7427:05-Shipbuilding - Bronze valvesF7452:78-Marine universal jointsF7453:78-Marine transmission shaft jointsF7454:78-Marine transmission shaft loose jointsF7455:78-Marine transmission shaft bearingsF7456:99-Shipbuilding - Remote shut-off devices for fuel oil tank and lubricating oil tank emergency shut-off valvesF7457:99-Shipbuilding - Pneumatically operated remote shut-off devices for fuel oil tank and lubricating oil tank emergency shut-off valvesF7471:96-Shipbuilding - Cast steel 10K screw-down check globe valvesF7472:96-Shipbuilding - Cast steel 10K screw-down check angle valvesF7473:96-Shipbuilding - Cast steel 20K screw-down check globe valvesF7474:96-Shipbuilding - Cast steel 20K screw-down check angle valvesF7475:96-Shipbuilding - Cast steel angle air valvesF7480:96-Shipbuilding - Rubber seat butterfly valvesF7490:98-Shipbuilding - Spheroidal graphite iron (ductile iron) 5K globe valvesF7491:99-Shipbuilding - Spheroidal graphite iron (ductile iron) 5K angle valvesF7492:99-Shipbuilding - Spheroidal graphite iron (ductile iron) 5K screw-down check angle valvesF7493:99-Shipbuilding - Spheroidal graphite iron (ductile iron) 5K screw-down check globe valvesF7494:00-Shipbuilding - Spheroidal graphite iron (ductile iron) 10K globe valvesF7495:00-Shipbuilding - Spheroidal graphite iron (ductile iron) 10K screw-down check globe valvesF7496:00-Shipbuilding - Spheroidal graphite iron (ductile iron) 10K angle valvesF7497:00-Shipbuilding - Spheroidal graphite iron (ductile iron) 10K screw-down check angle valvesF7498:01-Shipbuilding - Spheroidal graphite iron (ductile iron) 16K globe valvesF7499:01-Shipbuilding - Spheroidal graphite iron (ductile iron) 16K screw-down check globe valvesF7500:01-Shipbuilding - Spheroidal graphite iron (ductile iron) 16K angle valvesF7502:99-Shipbuilding - Steel ladder and steel handrailsF7504:01-Shipbuilding - Spheroidal graphite iron (ductile iron) 16K screw-down check angle valvesF7601:90-Spare parts for ships' machineryF7602:89-Tools and outfits in machinery spaceF7603:92-Small ships - Tools and instruments of engine departmentF7804:00-Shipbuilding - 5K copper alloy pipe flanges for marine useF7805:76-Basic dimensions of steel flanges for marine exhaust gas pipeF7806:96-Shipbuilding - Ships' 280K and 350K socket welding pipe flangesF7810:95-Shipbuilding welding - Sleeve type joints for steel pipe

modoru: