TG-F771-5E SEP., 2003

ORIFLO

GENERAL

O series ORIFLO METER is a By-pass Orifice type flowmeter.

Small sized variable flowmeter is installed onto measuring tube part

in which an orifice plate for by-pass flow is integrated.

Three different process connections,i.e., "SCREW", "FLANGE" and

"WAFER", are available for Selection.

An isolation valve is available between measuring tube and indica-

tor for indicator maintenance work even during process operation.

This eliminates the necessity of by-pass piping for maintenance pur-

pose and saves total piping cost.

In addition to standard material of STEEL version, Stainless steel

and PVC versions to cover corrosive fluids are available.

Alarm contacts are available as option. (O-780 series)

FEATURES

❏ LOW COST / HIGH PERFORMANCE

Thanks to unique orifice by-pass system, total instrumentation

cost can be saved especially for medium and large sized piping

measurement.

❏ COMPACT DESIGN

Small sized indicator saves space in plants.

❏ EASY INSTALLATION

"SCREW", "FLANGE" and "WAFER" are ready to meet field re-

quirements.

By-pass piping for maintenance purpose can be skipped by using

isolation valve.

❏ FOR ALL FLOW DIRECTIONS

BOTTOM TO TOP, TOP TO BOTTOM, LEFT TO RIGHT, RIGHT

TO LEFT.

ORIFLO is applicable for all possible flow directions. Change of

such flow direction is possible in field even after installation.

❏ ALARM CONTACT

Besides local flow rate indication, alarm contact (s) are available.

ORIFLO can be used as FLOWSWITCH.

❏ EASY MAINTENANCE

Simple design and limited number of parts saves maintenance

work.

❏ HIGH ANTI CORROSIVE CAPABILITY VERSION

Stainless steel and PVC versions are available for corrosive fluid

application.

COST EFECTIVE FLOW MEASUREMENT FORLIQUIDS AND GASES

INTEGRATED ORIFICE FLOWMETERS

MAIN APPLICATIONS

❏ Hot and cool water as well as air flow measurement at Air condi-

tioning

❏ Medium and large line measurement at General process

❏ Cooling water lines

❏ Water treatment process

❏ Pure and Ultra pure water production facilities process

❏ Testing of Fire fighting pumps

❏ Testing of blowers

❏ Others

CONTENTS

P1 GENERAL

FEATURES

MAIN APPLICATIONSP2 OPERATION PRINCIPLE

CONSTRUCTION

P3 MATERIAL CONSTRUCTIONMODEL CODE

P4 STANDARD SPECIFICATION

P5~6 SCALE RANGEP7 NO SERIES STANDARDIZED VERSION

P8~12 DIMENSIONS

P13 O-190 SERIES DIAL INDICATOR TYPEP14 SUGGESTIONS

INSTALLATION ACCESSORIES

P15 ORDERING INFORMATION

ORIFLO

2 TOKYO KEISO CO., LTD. TG-F771-5E

Main pipe

Processpiping

Orifice plate

Return tube

ValveHandle

By-pass return

By-pass piping

Isolation valve

Tapered tube(Graduated)

Float

Strainer

By-pass orifice

As shown in the figure, differential pressure is produced across the

Main orifice plate by flow velocity which corresponds to flow rate.

A small sized flowmeter (Variable area flowmeter) is mounted onto

this differential pressure production unit. By this arrangement, the

flow rate through the flowmeter corresponds to the flow rate through

the main piping.

Thus, scale range for main piping can be engraved onto the small

sized flowmeter and the flow rate through the main piping is indicated

by the position of float of the flowmeter.

Normally, an isolation valve is provided between the measuring tube

and the indicator for the purpose of indicator maintenance with no in-

terference of process operation. (This valve is for maintenance/ iso-

lation purpose and not for flow control purpose.)

A magnet piece is buried into the float for Alarm version which at-

tracts reed switch for alarm contact output. The setting point of alarm

is adjustable by shifting the location of reed switch.

a. Indicatorassembly

c. Main pipeb. Isolationvalve

OPERATION PRINCIPLE

CONSTRUCTION

ORIFLO consists of : a. lndicator

b. lsolation valve

c. Main pipe

The figure is an extended view of metallic material version.

(It would differ in case of PVC version.)

ORIFLO

TOKYO KEISO CO., LTD. 3TG-F771-5E

MATERIAL CONSTRUCTION

Different materials are available for measuring tube, isolation valve, indicator and sealings to cover various fluids

as per the following table ;

MODEL CODE

0 –

1678

– – –

SFW

NCB

– – – – –

– –

00000

45

11223

50

05052

00

– – – – – –

123456

MODE CODE

FUNCTION *1

FLOW DIRECTION

PROCESS CONNECTION

ISOLATION VALVE *2

LINE SIZE

MATERIAL CODE

DESCRIPTION

LOCAL INDICATION ONLYLOCAL INDICATION + ALARM CONTACTLOCAL INDICATION + OPITICAL ALARM UNIT (OLD MODEL O-76 )BOTTOM➝TOPLEFT➝RIGHTRIGHT➝LEFTTOP➝BOTTOMSCREW CONNECTION (10 mm~100mm)FLANGE CONNECTION (10 mm~)WAFER CONNECTION (10 mm~)NOT PROVIDEDPROVIDEDINDICATOR SEPARATION VERSION10mm15mm20mm25mm32mm

450mm500mmMATERIAL CLASS 1 (Steel)MATERIAL CLASS 2 (304SS)MATERIAL CLASS 3 (316SS)MATERIAL CLASS 4 (PVC)MATERIAL CLASS 5 (HT.PVC)SPECIAL

– – –187868

~ ~

*1: O-190 Dial indication version available. Refer to page 13 for details.*2: Ball valves are provided for indicator separation version (O- 8 - B). Refet to page 11 for details.

Main pipe

Screw connection

Flange connection

Wafer connection

Orifice plate

Isolation valve body / shaft

Indicator body

Tapered tube

FloatFor Iiquids

For Gases

Cover

Sealing

Material Class 1

SCS14/FCD400 *1

SGP/SS400

SS400/SCS14 *6

SUS304

SCS14/SUS304

SCS14

Pyrex glass

SUS316

Glass

SUS304/ABS

NBR

FPM

Material Class 2

SCS14/SUS304 *2

SUS304

SUS304/SCS14 *6

SUS304

SCS14/SUS304

SCS14

Pyrex glass

SUS316

Glass

SUS304/ABS

NBR

FPM

Material Class 3

SCS14/SUS316 *3

SUS316

SUS316/SCS14 *6

SUS316

SCS14/SUS316

SCS14

Pyrex glass

SUS316

Glass

SUS304/ABS

NBR

FPM

Material Class 4

PVC

PVC

PVC

PVC

HT.PVC/PP

HT.PVC

Pyrex glass *5

PVC *7

Glass

–*4

NBR

FPM

Material Class 5

HT.PVC

HT.PVC

HT.PVC

HT.PVC

HT.PVC/PP

HT.PVC

Pyrex glass

HT.PVC

Glass

–*4

NBR

FPM

Part description

*1: SCS14 for 10mm~25mm*2: SUS304 for 65mm~100mm*3: SUS316 for 65mm~100mm*4: Clear PVC cover available on request.*5: PVC (Max. Press. 0.6MPa) and Acryl (Max. Press. 0.4MPa, Max. Temp. 40°C) tapered tubes are also available.*6: SCS14 for 25mm, 40mm~150mm (JIS10K)

Abbriviation of material PP : Polypropylene NBR : Nitrile Butadiene Rubber FPM : Fluoro rubber HT.PVC : High temp. PVC

ORIFLO

4 TOKYO KEISO CO., LTD. TG-F771-5E

STANDARD SPECIFICATION

Measuring fluid :

Liquids (upto 3 mPa.s viscosity)

Gases (Not suitable for opaque liquids, slurries and steam)

Available sizes :

Std. 10mm(3/8")~300mm(12") Option 350mm(14")~500mm(20")

Special Larger than above on request

Process connection : Screw connection

Std. JIS RC thread

Opt. NPT threadSize availability

10mm(3/8")~100mm(4")

(10mm~50mm for PVC, HT.PVC versions) Flange connection

Std. JIS10KFF, JIS10KRF

Opt. ANSI 150#, JPI 150#, OthersSize availability 10mm(3/8")~

Wafer connection

Std. For JIS10K flangesOpt. For other flanges

Size availability 10mm(3/8")~

Max. fluid temp.

Material

Metallic indicators

PVC indicators

HT.PVC indicators

NBR seal

FPM seal

Stl. valve shaf

Max. fluid temp.

120°C*

60°C

80°C

80°C

120°C

120°C*

Max. Press : 1.0MPa (10kg/cm2G)

0.6MPa (6kg/cm2G) for PVC, HT.PVCversions

Range ability : Std. 10: 2

Different range ability applicable forspecial design products.

Indication accuracy : ±3% F.S.

(High accuracy special calibration onrequest)

Standard Differential pressure :

Other special Differential pressure design available onrequest. Consult factory for details.

Standard painting : Munsell 7.5BG4/1.5PVC part will not be painted.

Alarm function : 1 or 2 point alarm can be additionallyprovided.

Type of contact : Reed switch (SPST)Termination : M3.5 screw terminalTerminal connection :

1 point alarm : 1–32 point alarm : 1–3, 2–3

Contact capacity :AC10VA(Max. voltage 125V, Max. current 0.25A)DC10W(Max. voltage 100V, Max. current 0.25A)Use RD-1000 type Relay Driver if larger contactcapacity is required.(Separete TECHNICAL GUIDANCE available onrequest)

Reset Span : Max. 20% F.S.

Function

Local indication

Local indication

Alarm

+

Indicator materialDP (kPa)

For liquids For gases

Matellic material

Matellic material

PVC, HT.PVC

PVC, HT.PVC

15

15

15

20 20

20

5

5

REED SW TERMINAL(SELF RETENTIONING TYPE)

In case of lamp load, inductive load andelectric motor load, the surge current maybe induced. Provide the suitable protectionsuch as CR, surge suppression, relays etc.

ORIFLO

TOKYO KEISO CO., LTD. 5TG-F771-5E

Consult factory for other scale ranges, if required.

Above table is indicated based on water flow measurement.(Density 1.0g/cm3 Viscosity 1.0mPa.s) When the fluidSpecific gravity is other than 1.0, conduct conversioncalculation by the following formula, and refer to the table :

The calculation of figures in the above flow range table hasbeen made on the premises that SGP, a JIS code name fora carbon steel pipe for ordinary piping, had been used formain pipes. ln case of pipes other than SGP, multiply theabove liquid quantity by (the inner diameter of a pipe used ÷the inner diameter of a SGP pipe)2.

SCALE RANGE

●FOR LIQUID MEASUREMENT

Float material

Stainless steel (Local indicator)

Stainless steel (With alarm)

PVC (All types)

Density of float

7.9g/cm3

7.3g/cm3

3.0g/cm3

QW = Q ×

QW : Water converted range

Q : Flow range for actual liquid

: Density of actual Liquid

: Density of float

γo

γo (γ f – 1)

(γ f – γo)

γ f

10mm

15mm

20mm

25mm

32mm

40mm

50mm

65mm

80mm

100mm

125mm

150mm

200mm

250mm

300mm

350mm

400mm

450mm

500mm

3/8"

1/2"

3/4"

1"

1-1/4"

1-1/2"

2"

2-1/2"

3"

4"

5"

6"

8"

10"

12"

14"

16"

18"

20"

0.14 ~ 0.5

0.18 ~ 1.1

0.30 ~ 2.4

0.45 ~ 4.0

0.70 ~ 6.5

1.0 ~ 9.0

1.8 ~ 15

3.5 ~ 24

4.2 ~ 32

7 ~ 55

12 ~ 80

16 ~ 120

35 ~ 200

50 ~ 300

65 ~ 450

85 ~ 550

120 ~ 700

160 ~ 1000

350 ~ 1200

0.15 ~ 0.6

0.20 ~ 1.4

0.35 ~ 3.0

0.50 ~ 5.0

0.80 ~ 8.0

1.2 ~ 11

2 ~ 18

4 ~ 30

5 ~ 40

8 ~ 70

15 ~ 100

20 ~ 150

40 ~ 250

60 ~ 400

80 ~ 550

100 ~ 700

150 ~ 900

200 ~ 1200

400 ~ 1500

0.30 ~ 1.0

0.40 ~ 2.4

0.65 ~ 5.0

0.90 ~ 8.5

1.5 ~ 14

2.5 ~ 19

4 ~ 30

8 ~ 50

10 ~ 70

15 ~ 120

30 ~ 180

40 ~ 250

80 ~ 450

100 ~ 700

140 ~ 1000

180 ~ 1300

250 ~ 1600

350 ~ 2200

700 ~ 2600

SIZEFULL SCALE RANGE m3/h (Water, Density 1.0g/cm3, 1.0mPa.s viscosity)

DP 10kPa *1 DP 15kPa *2 DP 50kPa *3

*1: Range ability 10 : 2.5*2: Range ability 10 : 2*3: Range ability 10 : 2 (10 : 1.5 on request)

ORIFLO

6 TOKYO KEISO CO., LTD. TG-F771-5E

-10 -12 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95

(0.5) (0.5) (0.5) (0.5) (1.0) (1.0) (1.0) (1.0) (1.0) (2.0) (2.0) (2.0) (2.0) (2.0) (5.0) (5.0) (5.0) (5.0) (5.0)

10

8

6

4

2

12

9

6

32.4

15

10

5

3

20

15

10

54

40

30

20

108

45

40

30

20

109

25

20

15

10

5

50

40

30

20

10

30

20

10

6

35

30

20

10

7

55

50

40

30

20

11

60

50

40

30

20

12

65

60

50

40

30

20

13

70

50

30

14

90

70

50

30

18

9590

70

50

30

19

7570

50

30

15

80

60

40

1017

8580

60

40

2017

10mm

15mm

20mm

25mm

32mm

40mm

50mm

65mm

80mm

100mm

125mm

150mm

200mm

250mm

300mm

350mm

400mm

450mm

500mm

3/8"

1/2"

3/4"

1"

1-1/4"

1-1/2"

2"

2-1/2"

3"

4"

5"

6"

8"

10"

12"

14"

16"

18"

20"

2.3 ~ 9.0

3.2 ~ 20

5 ~ 45

8 ~ 80

12 ~ 130

16 ~ 180

25 ~ 290

45 ~ 460

60 ~ 650

100 ~ 1100

150 ~ 1700

210 ~ 2400

380 ~ 4200

550 ~ 6500

900 ~ 9000

1100 ~ 11000

1500 ~ 15000

1800 ~ 19000

2200 ~ 24000

3.5 ~ 12

4.5 ~ 28

7.5 ~ 65

11 ~ 110

18 ~ 180

22 ~ 250

35 ~ 400

65 ~ 650

85 ~ 900

140 ~ 1500

220 ~ 2400

300 ~ 3400

500 ~ 5500

800 ~ 9000

1200 ~ 12000

1600 ~ 16000

2100 ~ 21000

2600 ~ 27000

3200 ~ 33000

4.5 ~ 16

6 ~ 39

10 ~ 90

15 ~ 150

25 ~ 250

32 ~ 340

50 ~ 550

90 ~ 900

120 ~ 1200

200 ~ 2100

300 ~ 3300

400 ~ 4500

750 ~ 8000

1100 ~ 12000

1700 ~ 17000

2200 ~ 22000

2800 ~ 28000

3500 ~ 36000

4200 ~ 45000

SIZEFULL SCALE RANGE m3/h (nor) (Air, 0°C, 1 atm)

DP 5kPa *1 DP 10kPa *2 DP 20kPa *2

*1: Range ability 10 : 2*2: Range ability 10 : 2 (10 : 1.5 on request)

Consult factory for other scale ranges, if required.

Gas measurement versions are all custom made. Thefollowing table is shown by the flow rate of AIR, at 0°C, 1atm. Conduct conversion calculation and refer to the table.

Conversion calculation

The calculation of figures in the above flow range table hasbeen made on the premises that SGP, a JIS code name fora carbon steel pipe for ordinary piping, had been used formain pipes. ln case of pipes other than SGP, multiply theabove liquid quantity by (the inner diameter of a pipe used ÷the inner diameter of a SGP pipe)2.

●FOR GAS MEASUREMENTORIFLO for gas flow measurment will be calibrated and graduated according to customers' individual operating conditionsuch as density, pressure and temperature.Refer to ORDERING INFORMATION on page 15 and specify operating condition.The following table is shown by the air flowrate at 0°C,1 atm. Conversion calculation is required in case actual operating condition differs from this.

Q = Q × Cγ × Ct × CpQ : Converted Air flowQ : Flow rate of Actual GasCγ : Cγ = γ /1.293 (γ=Sp, Wt of the Gas, kg/Nm3)Ct : Ct = (273+t)/273 (t=operating temp., °C)Cp: Cp = 0.1013/(0.1013+p) (p=operating press. MPa)

A

A

●Standard scale graduation

ORIFLO

TOKYO KEISO CO., LTD. 7TG-F771-5E

NO–L

SNSCFNFC

Size

Scale range code

Rc thread, No isolation valveRc thread, Isolation valve providedFlange ended, No isolation valveFlange ended, Isolation valve provided

●MODEL CODE FOR LIQUID MEASUREMENT, Material is same as Class 1 in page 3.

NO–G

SNSCFNFC

Size

Rc thread, No isolation valveRc thread, Isolation valve providedFlange ended, No isolation valveFlange ended, Isolation valve provided

●MODEL CODE FOR GAS MEASUREMENT, Material is same as Class 1 in page 3.

Scale range 2 ~ 10 m3/h (std) 5 ~ 25 m3/h (std) 10 ~ 50 m3/h (std) 20 ~ 100 m3/h (std) 30 ~ 150 m3/h (std)

Size10mm15mm20mm25mm32mm

Model codeNO–G10–NO–G15–NO–G20–NO–G25–NO–G32–

Scale range 40 ~ 200 m3/h (std) 80 ~ 400 m3/h (std)120 ~ 600 m3/h (std) 200 ~ 1000 m3/h (std) 300 ~ 1500 m3/h (std)

Model codeNO–G40–NO–G50–NO–G65–NO–G80–NO–G100–

Size40mm50mm65mm80mm100mm

Scale range table

Calibration condition : Air, 20°C 1 atm

NO SERIES STANDARDIZED VERSION

NO SERIES is the fixed scale range version of O-180 ORIFLO. Available size is 10 mm(3/8")~100mm(4").

Size

10mm

15mm

20mm

25mm

32mm

Model codeNO–L10–02–

04–06–08–

NO–L15–03–05–08–10–15–

NO–L20–15–20–25–30–

NO–L25–20–30–40–50–60–

NO–L32–04–06–08–10–

Scale range 40 ~ 200 L/h 80 ~ 400 120 ~ 600 160 ~ 800 60 ~ 300 L/h 100 ~ 500 160 ~ 800 0.2 ~ 1 m3/h 0.3 ~ 1.5 0.3 ~ 1.5 m3/h 0.4 ~ 2 0.5 ~ 2.5 0.6 ~ 3 0.4 ~ 2 m3/h 0.6 ~ 3 0.8 ~ 4 1 ~ 5 1.2 ~ 6 0.8 ~ 4 m3/h 1.2 ~ 6 1.6 ~ 8 2 ~ 10

Scale range 1 ~ 5 m3/h 1.6 ~ 8 2 ~ 10 3 ~ 15 2 ~ 10 m3/h 3 ~ 15 4 ~ 20 5 ~ 25 3 ~ 15 m3/h 4 ~ 20 6 ~ 30 8 ~ 40 6 ~ 30 m3/h 8 ~ 40 10 ~ 50 8 ~ 40 m3/h 10 ~ 50 12 ~ 60 16 ~ 80 20 ~ 100

Size

40mm

50mm

65mm

80mm

100mm

Model codeNO–L40–05–

08–10–15–

NO–L50–10–15–20–25–

NO–L65–15–20–30–40–

NO–L80–30–40–50–

NO–L100–40–50–60–80–

100–

Scale range table

Calibration condition : Water, Sp. Gr. 1.0, 1.0 mPa.s viscosity

ORIFLO

8 TOKYO KEISO CO., LTD. TG-F771-5E

10mm

15mm

20mm

25mm

32mm

40mm

50mm

65mm

80mm

100mm

74

85

90

100

110

120

70

70

70

70

74

85

90

–

–

–

105

105

110

110

120

120

130

–

–

–

1.5

1.6

1.7

1.8

2.0

2.1

2.6

–

–

–

2.0

2.2

2.3

3.0

3.5

5.0

SIZEMain pipe FCD400 Main pipe SCS14

120

120

130

140

145

160

L *A Weight(kg) L *A Weight(kg)

* A is reduced by 40mm in case lsolation valve is NOT provided. Weight of isolation valve is 0.4kg

65mm

80mm

100mm

120

120

160

175

185

200

4.0

4.3

7.5

SIZE L Weight (kg)*A

* A is reduced by 40mm in case lsolation valve is NOT provided. Weight of isolation valve is 0.4kg

10mm

15mm

20mm

25mm

32mm

40mm

50mm

75

75

75

75

85

85

90

145

145

145

145

150

155

160

1.1

1.1

1.1

1.1

1.2

1.2

1.2

SIZE L *A Weight (kg)

* A is reduced by 45mm in case lsolation valve is NOT provided. Weight of isolation valve is 0.2kg

(1) MATERIAL CLASS

●SCREW CONNECTION TYPE O-18 -SC- -

1 (FCD400) 32mm~100mm,

2 3 (SCS14) 10mm~50mm

(2) MATERIAL CLASS 2 3 (SUS304, SUS316) 65mm~100mm

EXTERNAL DIMENSION

(3) MATERIAL CLASS (PVC, HT.PVC) 10mm~50mm4 5

ORIFLO

TOKYO KEISO CO., LTD. 9TG-F771-5E

10mm

15mm

20mm

25mm

32mm

40mm

50mm

65mm

80mm

100mm

125mm

150mm

200mm

250mm

300mm

350mm

400mm

450mm

500mm

600mm

540

540

540

540

540

540

540

540

540

540

540

540

540

540

540

540

540

540

540

540

3.2

3.6

4.2

5.4

6.7

7.1

8.5

11.4

12

15.5

20

27

35

50

61

74

93

115

130

170

140

145

145

150

155

155

165

170

175

190

200

215

240

265

290

310

335

360

390

440

SIZEL *1A *2Weigh (kg)

Main pipe(SGP,SUS304,SUS316)

1 2 3

*1: A is reduced 40mm in case isolation valve is NOT provided.*2: In case flange rating JIS10K Weight of isolation valve is 0.4kg

MATERIAL CLASS

●FLANGE CONNECTION TYPE

O-18 -FC- -

MATERIAL CLASS

Special design with L dimension of 200mm (10A~80A) and 300mm (100A~600A)available on request, Contact Tokyo Keiso for details.

1 2 3

4 5 540

540

540

540

540

540

540

540

540

540

540

540

540

540

540

540

–

–

–

–

1.1

1.2

1.3

1.5

1.9

1.9

2.3

2.7

3.1

4.1

5.5

8.0

9.5

14.5

20

20

–

–

–

–

125

125

130

130

135

140

145

155

160

175

185

200

225

250

275

300

–

–

–

–

Main pipe(PVC,HT.PVC)

4 5

10mm

15mm

20mm

25mm

32mm

40mm

50mm

65mm

80mm

100mm

125mm

150mm

200mm

250mm

300mm

350mm

400mm

450mm

500mm

600mm

SIZEL *1A *2Weigh (kg)

*1: A is reduced 45mm in case isolation valve is NOT provided.*2: In case flange rating JIS10K Weight of isolation valve is 0.2kg

ORIFLO

10 TOKYO KEISO CO., LTD. TG-F771-5E

(2) MATERIAL CLASS (PVC, HT.PVC)4 5

(1) MATERIAL CLASS (SS400, SUS304, SUS316, SCS14)

●WAFER CONNECTION TYPE

O- 8 -W - -

1 2 3

10mm

15mm

20mm

25mm

32mm

40mm

50mm

65mm

80mm

100mm

125mm

150mm

200mm

250mm

300mm

350mm

400mm

450mm

500mm

600mm

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

65

65

65

65

65

2.5

2.7

2.8

2.0

3.6

2.5

2.8

3.1

3.3

3.8

8.2

10

13

18

20

25

34

40

47

58

160

160

165

175

175

180

190

200

205

215

230

245

270

300

320

345

375

405

430

485

SIZE L *A

* A and weight are for JIS10K flange installation and is reduced by 40mm in case isolation valve is NOT provided. Weight of isolation valve is 0.4kg

Weight (kg)

10mm

15mm

20mm

25mm

32mm

40mm

50mm

65mm

80mm

100mm

125mm

150mm

200mm

250mm

300mm

350mm

400mm

450mm

500mm

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

1.3

1.3

1.4

1.7

1.9

1.9

2.2

2.4

2.6

3.0

3.8

4.5

5.5

7.5

8.5

9

12

14

16

140

140

145

155

160

165

170

180

185

200

220

235

260

295

320

340

375

405

430

SIZE L *A Weight (kg)

* A and weight are for JIS10K flange installation and is reduced by 45mm in case isolation valve is NOT provided. Weight of isolation valve is 0.2kg

ORIFLO

TOKYO KEISO CO., LTD. 11TG-F771-5E

Main pipe

Flange connection type (10mm~500mm)

Other connection

L

540

As per descriptionpages 8 and 10.

Main pipe

* By-pass piping size will be 1/2" for PVC.

Screw connection

Flange connection

Wafer connection

Orifice plate

FittingA,B

Bypass piping

Ball valve

Indicator

*

FCD400,SCS14,SUS304,SUS316,PVC

SGP/SS400,SUS304,SUS316,PVC

SS400,SUS304,SUS316,SCS14,PVC

SUS304,SUS316,PVC

SCS14,HT.PVC

SGP(W),SUS304,SUS316,PVC

C3771BE,SCS14A,PVC

SCS14,HT ● PVC

Indicator can be located separately from process by using by-pass piping for easy observation of indication. Ball valves are provided for indicator maintenance purpose. Different materials are available as shown in below table.Special design for bypass piping is available on request.

●INDICATOR SEPARATION VERSION O- 8 - B - -

TOKYO KEISOJAPAN

102 65

2-Rc3/8

2-Rc3/8

80

(200

)

L

Std

. (10

00)

ORIFLO

12 TOKYO KEISO CO., LTD. TG-F771-5E

(2) LOCAL INDICATION WITH ALARM CONTACT O-78

(1) LOCAL INDICATION ONLY O-18

●ISOLATION VALVE

●INDICATOR

MATERIAL (SCS14) MATERIAL (HT.PVC)

MATERIAL (SCS14) MATERIAL (PVC, HT.PVC)

MATERIAL (SCS14) MATERIAL CLASS (HT.PVC)

85 44

5

5

OP

EN

OP

EN

ORIFLO

TOKYO KEISO CO., LTD. 13TG-F771-5E

In addition to standard O-180 with Glass tube flowmeter indication, O-190 series Dial indication type is available. Consult

factory for details.

A. Integrated Dial Indication type O-190-DG

O-190-DG indicaters flowrate by pressure gauges. 3 waymanifold valve is provided.

B. 0-190-B ■ separate indication seriesDifferent types of pressure indicators can be used for indication of flow rate. They can be installed separately away fromorifice piping for better observation.

O-190 SERIES DIAL INDICATOR TYPE

LRc1/4

Rc1/4

H

50

A'A

WINDOW

200

400

WINDOW

(160

0)

Air Vent Air VentZERO ADJ.(H)

(H)

(L)

(L)54Rc1/2 Rc1/2

MAX.240

MAX.87

(235

)

øD

t

2" pipe

(79)

LRc1/4

HRc1/4

270

Max

.120

500

Max.190 Max.95

(A(±

) 2)

(90(±))

Rc1/4

a. Manometer indication O-190-BDO-190-BD

c. Dial indication O-190-BMO-190-BM d. Indication in protection housing O-190-BSO-190-BS

b. U shaped Manometer indication O-190-BUO-190-BU

ORIFLO

14 TOKYO KEISO CO., LTD. TG-F771-5E

SUGGESTIONS

Upsttream

Downstream

90° elbow

10D

4D

Fully opened valve

12D

4D

Description

Flange

Bolt and nuts

Gaskets

Material

SS400, SUS304,SUS316

SS400, SUS304

Non-asbestos, NBR, FPM, Others

Q'ty

2

As required

2

Gas application Liquid application for local indicator

Alarm versions (Metallic material) Alarm versions (PVC material)

center

top top

top

Description

TS Socket welding flange

Bolt and nuts

Gaskets

Material

PVC, HT.PVC

SS400, SUS304

NBR, EPDM, Others

Q'ty

2

As required

2

Air elimination plug

Rc1/4 Rc1/4

R1/4 R1/4

Airelimination

Drainelimination

MATERIALCLASS 1 2 3

Nipple Nipple

Ball valve

(SCS13) (SCS14)

Ball valve

(C3771BE)

(1) Required straight run upstream and downstream

The following straight run is recommended for accuratemeasurement :

(3) Reading of flow rate

The flow rate is to be read by the position of floatand engraved graduation. Refer to the following :

(2) Air bubble elimination and draining

Air bubble in the indicator may cause measurement error.

Eliminate the air in the indicator through Air elimination

plug at the top of indicator for the start-up.

For liquid application, it is recommended to close the

isolation valve and drain out the liquid in the indicatorthrough drain plug in case the operation of process is

stopped for some reason.

Freezing of the liquid in the tapered tube may causebreakage of tube. Indicator with drain valve is available

on request.

(4) Flow direction

By changing the direction of indicator, ORIFLO may beused for any flow direction of bottom to top, left to right,right to left and top to bottom. This change can beconducted in the field as well.

Ball valves are available for air eliminator and drain outas option as follows ;

MATERIAL CONSTRUCTION

(2) TS FLANGES

TS socket welding flanges are also available on request :ACCESSORIES

(1) COUNTER FLANGESCounter flanges are available on request.Supply scope is as follows :

ORIFLO

TOKYO KEISO CO., LTD. 15TG-F771-5E

Specify the following for order or inquiry ;

MODEL O – ■ 8 ■ – ■ ■ – ■■■ – ■

Fluid name ______________________________________________________________Density _____________■ g/cm3 ■ kg/m3(nor) ■_____________

Viscosity _____________■ mPa.s

Pressure Nor._____________Max._____________ ■ MPa ■_____________Temperature Nor._____________Max._____________ ■ °C ■_____________

Connection ■ Rc ■ Other thread (_____________)■ JIS10KFF ■ JIS10KRF ■ Other flange (_____________)

■ Wafer for JIS10K flange ■ Wafer for other flange (_____________)

Inner diameter of process piping ■ SGP ■_____________mm_____________

Full scale _____________■ m3/h ■ m3/h(nor) ■_____________

Seal material ■ NBR ■ FPM ■ Others (_____________)

In case of alarm version Number of point ■ 1 ■ 2

Setting 1 ( ■ H ■ L at________■ m3/h ■ m3/h(nor) )

Setting 2 ( ■ H ■ L at________■ m3/h ■ m3/h(nor) )

Installation accessories ■ Counter flanges Material ( )■ TS flanges Material ( )

Other special instructions, if any ; ___________________________________________________________

_____________________________________________________________________________________ __

ORDERING INFORMATION

ORIFLO

16 TG-F771-5E

* Specification subject to change without notice

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558

Tel : 03 – 3431 – 1625 (KEY) ; Fax : 03 – 3433 – 4922

e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp

● O-181-SN ● O-181-WC ● O-186-SN

● O-181-WC ● O-786-SN● O-188-FC