627f pressure reducing regulator bulletin

Bulletin 71.2:627FFebruary 2013

D10

1544

X01

2

www.fisherregulators.com

Type 627F Pilot-Operated Pressure Reducing Regulator

IntroductionThe Type 627F pilot-operated (Type 6351F pilot) pressure reducing regulator (Figure 1) provides superior performance when used in pressure-factor measurement(fixed-factorbilling)applications.TheType 627F includes a factory-installed Type 6351F pilotandhasexternalregistrationthatrequiresadownstream control line.

Features • Accurate for Pressure-Factor Measurement

Applications—Pilot action controls pressure to within ±1 percent of the absolute outlet pressure (psia) setting at full valve disk travel, resulting in higher capacity than could be obtained without a pilot. This capability results in low-pressure variationsoverbroadflowrangesandinletpressure ranges.

• Easy to Maintain—Trim parts can be replaced without removing the regulator body from the

Figure 1. Type 627F Pressure Reducing Regulators

pipeline. A two-bolt connection between the body anddiaphragmcasingsimplifiesdisassemblyfor maintenance.

• Installation Adaptability—The diaphragm case and/or regulator body can be rotated in any of four positions to allow regulator installation in locations with limited space. The regulator may be installed in any position without affecting operation as long as the spring case vent is protected from the elements.

• Tamper-Resistant—An adjusting screw locknut and protective cap (Figure 2) is standard on all Type 6351F pilots to discourage tampering with the pressure setting.

• Wide Range of Flow Capabilities—A selection of bodyandorificesizesisavailabletosatisfyvariousflowrequirements.

• Tight Shutoff Capability—Aflat-faceddiskofNitrile(NBR)providesexcellentshutoffcapability.

W5607-1 W5641-1

Bulletin 71.2:627F

2

Body Sizes and End Connection Styles Ductile iron: 3/4, 1, or 2 NPT Steel: 3/4, 1, or 2 NPT; NPS 1 or 2 / DN 25 or 50, CL150 RF, CL300 RF, CL600 RF, PN 16/25/40 RF

Maximum Inlet and Differential Pressures(1)

See Table 2

Minimum Pressure Differential 20 psid / 1.4 bar d

Outlet Pressure Ranges(1)

5 to 100 psig / 0.34 to 6.9 bar See Table 1

Maximum Emergency Outlet Pressure(1)

250 psig / 17.2 bar for all Type 627F actuators and Type 6351F pilot components.

Outlet Pressure Accuracy ±1% of absolute pressure setting(1) (psia or bar absolute) when inlet pressure is held within allowable variations shown in Table 3; droop does notexceed1%ofabsolutepressuresettingfor flowratesshowninTables6through8.

Flow Coefficients See Table 4

IEC Sizing Coefficients See Table 5

Typical Regulating Capacities SeeTables6through8andCapacity Information section

Typical Performance Curve See Figure 3

Construction Materials Type 627F Main Regulator Body: Ductile iron (standard) or steel Spring Case and Diaphragm Case: Die cast Aluminum (standard), Ductile iron, or Steel Orifice:Aluminum (standard) or Stainless steel

1.Thepressure/temperaturelimitsinthisBulletinandanyapplicablestandardorcodelimitationshouldnotbeexceeded.

Specifications

Construction Materials (continued) Disk Assembly: Aluminum (standard) or Stainless steel holder with Nitrile (NBR) disk O-Rings and Diaphragm: Nitrile (NBR) Tension Spring: Plated steel Type 6351F Pilot Body: Stainless steel Spring Case: Aluminum Diaphragm: Nylon fabric coated with Nitrile (NBR) Inner Valve Plug: Stainless steel/Nitrile (NBR) or Stainless steel/Fluorocarbon (FKM) Stem: Stainless steel Control Spring: Zinc-plated steel Valve Spring: Stainless steel Pusher Post: Aluminum or Stainless steel Diaphragm Plate, Lower Spring Guide, and Adjusting Screw: Zinc-plated steel

Temperature Capabilities(1)

-20to180°F/-29to82°C

Pressure Registration Externalthrough1/4NPT(internal)control line connection (see Figure 2)

Pilot Spring Case Vent Connection 1/4 NPT (internal) with removable screened vent assembly

Pilot Connections 1/4 NPT (internal)

Approximate Weights NPT body with Ductile Iron or Steel Casings: 10 pounds / 4.5 kg NPT body with Aluminum Casings: 6.3 pounds / 2.9 kg Flanged body with Steel Casings: 18pounds/8.2kg Flanged body with Ductile Iron Casings: 14 pounds / 6.4 kg

External Dimensions See Figure 4

Bulletin 71.2:627F

3

Figure 2. Type 627F Pilot-Operated Pressure Reducing Regulator Operational Schematic

A6558

PILOT SUPPLY TUBING(FACTORY INSTALLATION OPTIONAL)

PILOT ADJUSTINGSCREW

FILTER(FACTORYINSTALLATIONOPTIONAL)

RESTRICTION(BLEED)

TENSIONSPRING

SPRING SEAT BOLT,THIS IS NOT ANADJUSTING SCREW

FIELD INSTALLEDDOWNSTREAMCONTROL LINE

PILOT DIAPHRAGM

TYPE 6351F PILOT

TYPE 627F REGULATOR

MAIN REGULATORDIAPHRAGM

LEVER

VALVEDISK

INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE LOADING PRESSURE

Bulletin 71.2:627F

4

ORIFICE SIZEALLOWABLE INLET PRESSURE RANGE FOR MAINTAINING OUTLET PRESSURE WITHIN

±1% OF THE ABSOLUTE OUTLET PRESSURE SETTING(1)

5 psig / 0.34 bar 30 psig / 2.1 bar 40 psig / 2.8 bar 60 psig / 4.1 bar 100 psig / 6.9 bar

Inches mm psig bar psig bar psig bar psig bar psig bar

3/8x1/83/8x1/4

3/81/2

9.5x3.29.5x6.4

9.513

30 to 25030 to 25030 to 25025 to 125

2.1 to 17.22.1 to 17.22.1 to 17.21.7to8.6

55 to 25055 to 25055 to 25050 to 125

3.8to17.23.8to17.23.8to17.23.4to8.6

65 to 25065 to 25065 to 25060 to 125

4.5 to 17.24.5 to 17.24.5 to 17.24.1to8.6

85to25085to25085to25080to125

5.9 to 17.25.9 to 17.25.9 to 17.25.5to8.6

125 to 250125 to 250125 to 250120 to 125

8.6to17.28.6to17.28.6to17.28.3to8.6

1.Forbestperformance,outletpressuresettingshouldbemadeusinganinletpressurethatismidwaybetweenthehighestandlowestexpectedinletpressure.

Table 3.AdditionalSpecifications

ORIFICE SIZE MAXIMUM INLET PRESSURE MAXIMUM PRESSURE DIFFERENTIAL

Inches mm psig bar psi bar

3/8x1/83/8x1/4

3/81/2

9.5x3.29.5x6.4

9.513

250250250125

17.217.217.28.6

250250250125

17.217.217.28.6

Table 2. Maximum Allowable Inlet Pressures and Pressure Differential

Table 5. IECSizingCoefficients

PILOT TYPEOUTLET PRESSURE RANGE

PILOT CONTROL SPRING INFORMATION

Part Number Color CodeWire Diameter Free Length

psig bar Inches mm Inches mm

6351F 5 to 3535 to 100

0.34 to 2.42.4 to 6.9

1B7883270221K748527022

UnpaintedRed

0.1420.192

3.614.88

2.132.19

54.155.6

Table 1. Outlet Pressure Ranges

ORIFICE SIZE3/4 NPT BODY NPS 1 / DN 25 BODY NPS 2 / DN 50 BODY

Wide-Open Wide-OpenC1



Inches mm Cg Cv Cg Cv Cg Cv

3/8x1/8 9.5x3.2 12.5 0.43 29.1 12.5 0.43 29.4 12.5 0.43 29.2

3/8x1/4 9.5x6.4 50 1.63 30.6 50 1.71 29.3 52 1.66 31.3

3/8 9.5 108 2.99 36.1 108 3.42 31.6 115 3.39 33.9

1/2 13 190 4.87 39.0 190 5.29 35.9 200 5.01 39.9

ORIFICE SIZE XTFD FL

Inches mm 3/4 NPT body NPS 1 / DN 25 body NPS 2 / DN 50 body

1/8 3.2 0.54 0.55 0.54

0.50

0.79

1/4 6.4 0.59 0.54 0.62 0.87

3/8 9.5 0.82 0.63 0.73 0.89

1/2 13 0.96 0.82 1.01 0.86

Table 4.FlowCoefficients

Bulletin 71.2:627F

5

Principle OperationThe superior performance of a Type 627F regulator is due to the amplifying effect of the pilot and the two-path control system (Figure 2). Changes in outlet pressure actquicklyonthemainregulatordiaphragmwhichrepositions the valve disk to provide fast response to systemchanges.Simultaneously,thepilotamplifiessystem pressure changes to position the main regulator valve disk for precise pressure control.Inlet pressure is used for the pilot supply pressure. Ifdownstreamflowincreases,loweringtheoutletpressure below the regulator setpoint, pressure on the pilot diaphragm and the lever side of the main regulator diaphragm decreases. The pilot opens to supply the requiredloadingpressureincrease.Theincreasedloading pressure from the pilot overcomes the main regulator spring force, and the main regulator valve diskmovesfartheropentosupplytherequiredflow.When downstream pressure increases due to lowered demand, greater pressure is registered on the pilot diaphragm and the lever side of the main regulator diaphragm.Thepilotcloses,andtheexcessloadingpressure bleeds off to downstream, through the pilot restriction. With the lower loading pressure, the spring canmovethemainregulatordiskclosertotheorifice.Undernoflowconditions,theexcessloadingpressurebleeds through the pilot restriction to the downstream system until the loading pressure and outlet pressure equalize.Themainvalveisclosedbythespringandthe bleed stops.

InstallationThe Type 627F regulators may be installed in any position,aslongasflowwillbeinthesamedirectionas that indicated by the body arrow. These regulators should be installed so that their spring case vents are protected from anything that might clog them.Emerson™ provides an instruction manual with every regulator shipped. Refer to this for complete installation, operation, and maintenance instructions. Included is a complete listing of individual parts and recommended spare parts.

Overpressure ProtectionOverpressurizinganyportionofaregulatororassociatedequipmentmaycausepersonalinjury,leakage,orproperty damage due to bursting of pressure-containing partsorexplosionofaccumulatedgas.

To avoid overpressure, provide appropriate pressure relieving or pressure limiting devices to ensure that noneofthelimitsinthespecificationssectionisexceeded.Regulatoroperationwithinratingsdoesnotpreventthepossibilityofdamagefromexternalsources such as debris in the pipeline. Inspect the regulator for damage after any overpressure condition.RefertothereliefsizingcoefficientsinthespecificationstableandtheCapacityInformationsectiontodeterminetherequiredexternalreliefvalve capacity.

Capacity InformationNatural gas regulating capacities at selected inlet pressures and outlet pressure settings are given in Tables6through8.FlowsareinSCFH(60°Fand14.7psia)of0.6specificgravitynaturalgas.Todeterminetheequivalentcapacitiesforothergases,multiply the table capacity by the following appropriate conversionfactor:0.775forair,0.789fornitrogen,0.625forpropane,or0.548forbutane.Forgasesofotherspecificgravities,multiplythegivencapacityby0.775,anddividebythesquarerootoftheappropriatespecificgravity.Then, if capacity is desired in normal cubic meters per hour (Nm3/h)at0°Cand1.01325bar,multiplySCFHby0.0268.Todeterminewide-openflowcapacitiesforreliefsizinguse the following formula:

where,

C1 = Cg/Cv(seeSpecificationstable) Cg =Gassizingcoefficient(seeSpecificationstable) G =Gasspecificgravity(air=1.0) P1 = Valve inlet pressure, psia P = Pressure drop across valve, psi Q =Gasflowrate,SCFH T =Absolutetemperatureofgasatinlet,°Rankine

To obtain the published capacities, the inlet and outlet pipingshouldbethesameastheregulatorsize.

Q = CgP1SIN DEG520 3417 P

GT C1 P1

Bulletin 71.2:627F

6

Table 6. Flow Capacities in SCFH / Nm3/hof0.6SpecificGravityNaturalGasat1%DroopinAbsoluteOutletPressurefor3/4NPT(Downstream Control Line in Body Size Piping)

- continued -

PILOT SPRING RANGE, PART NUMBER, AND

COLOR CODE

OUTLETPRESSURE

SETTING

INLETPRESSURE

3/4 NPT BODY SIZE

Orifice Diameter, Inches / mm

psig bar psig bar 3/8 x 1/8 / 9.5 x 3.2 3/8 x 1/4 / 9.5 x 6.4 3/8 / 9.5 1/2 / 13

5 to 35 psig / 0.34 to 2.4 bar1B788327022

Silver

5 0.34

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

700860

10201170149018002200258033704170

18.823.127.331.439.948.259.069.190.3112

2840350041404780606073408940

10,50013,70015,500

76.193.8111128162197240281367415

578074808850

10,20012,90015,00015,50015,50015,50015,500

155 200237273346415 415415415415

973013,10015,40015,50015,50015,50015,500

261351413415415 415415

10 0.69

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

690860

10201170149018002200 25803370 4170

18.523.127.331.439.948.259.069.190.3112

2760350041404780606073408940

10,50013,70016,900

74.093.8111128192197240281367453

548074808850

10,20012,90015,70017,50019,50019,50019,500

147200237273346421469523523523

850013,10015,40017,80019,50019,50019,500

228351413477523523523

20 1.4

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

590820

10001170149018002200258033704170

15.822.026.831.439.948.259.069.190.3112

2310325040304780606073408940

10,50013,70016,900

61.987.1108128162197240281367453

436063208010

10,20012,90015,70019,10022,50028,00028,000

117 169215273346421512603750750

600010,00013,40017,80022,60024,00028,000

161268359477606634750

30 2.1

506080

100125150200250

3.54.15.56.98.6

10.313.817.2

9301140149018002200258033704170

24.930.639.948.259.069.190.3112

36804530606073408940

10,50013,70016,900

98.6121162197240281367453

70908880

12,90015,70019,10022,50028,00028,000

190238346421512603750750

11,00014,80022,60027,40033,300

295397606734892

35 to 100 psig / 2.4 to 6.9 bar1K748527202

Red

40 2.8

6080

100125150200250

4.15.56.98.6

10.313.817.2

1030145017902200258033704170

27.638.948.059.069.190.3112

4070579073408940

10,40013,50016,900

109155197240279362453

777011,40015,70019,10020,00020,00020,000

208306421512536536536

10,40019,00027,40033,300

279509734892

50 3.5

607080

100125150200250

4.14.85.56.98.6

10.313.817.2

8201130137017702200259033704170

22.030.336.747.459.069.490.3112

32104450542070608940

10,40013,50016,900

86.0119145189240279362453

59708430

10,50014,00019,10022,50029,00029,000

160226281375512603777777

750010,60017,00023,30033,300

201284456624892

60 4.1

80100125150200250

5.56.98.6

10.313.817.2

122017002170258033704170

32.745.658.269.190.3112

479067308700

10,30013,50016,900

128180233276362453

905013,10017,30022,50029,40032,000

243351464603788858

12,00021,60028,400

322579761

75 5.2

100125150200250

6.98.6

10.313.817.2

14902080255033704170

39.955.768.390.3112

58708250

10,20013,50016,900

157221273362453

11,10016,00020,30029,40036,200

297429544788970

17,00026,600

456713

–Maximumoperatinginletpressureisexceeded.

Bulletin 71.2:627F

7

Table 6. Flow Capacities in SCFH / Nm3/hof0.6SpecificGravityNaturalGasat1%DroopinAbsoluteOutletPressurefor3/4NPT(Downstream Control Line in Body Size Piping) (continued)

Table 7. Flow Capacities in SCFH / Nm3/hof0.6SpecificGravityNaturalGasat1%DroopinAbsoluteOutletPressureforNPS1/DN25(Downstream Control Line in Body Size Piping)

- continued -


COLOR CODE

OUTLETPRESSURE

SETTING

INLETPRESSURE

3/4 NPT BODY SIZE



35 to 100 psig / 2.4 to 6.9 bar1K748527202

Red

100 6.9

125150200250

8.610.313.817.2

1660236033304170

44.563.389.2112

66809320

13,40016,900

179250359453

12,50017,90026,60036,200

335480713970

18,000 482



COLOR CODE

OUTLETPRESSURE

SETTING

INLETPRESSURE

NPS 1 / DN 25 BODY SIZE



5 to 35 psig / 0.34 to 2.4 bar 1B788327022

Silver

5 0.34

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

700860

10201170149018002200258033704170

18.823.127.331.439.948.259.069.190.3112

2840350041404780606073408940

10,50013,70016,900

76.193.8111128162197240281367453

604074808850

10,20012,90015,70018,50018,50018,50018,500

162200237273346421496496496496

10,10013,10015,40017,80018,50018,50018,500

271351413477496 496496

10 6.9

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

690860

10201170149018002200258033704170

18.523.127.331.439.948.259.069.190.3112

2760350041404780606073408940

10,50013,70016,900

74.093.8111128162197240281367453

584074808850

10,20012,90015,70019,10022,50022,60022,600

157200237273346421512603606606

893013,10015,40017,80022,60022,60022,600

239351413477606606606

20 1.4

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

590820

10001170149018002200258033704170

15.822.026.831.439.948.259.069.190.3112

2310325040304780606073408940

10,50013,70016,900

61.987.1108128162197240281367453

482068308500

10,20012,90015,70019,10022,50029,40033,300

129183228273346421512603788892

640010,50013,40017,80022,60027,40033,300

172281359477606734892

30 2.1

506080

100125150200250

3.54.15.56.98.6

10.313.817.2

9301140149018002200258033704170

24.930.639.948.259.069.190.3112

36804530606073408940

10,50013,70016,900

98.6121162197240281367453

77209540

12,90015,70019,10022,50029,40036,200

207256346421512603788970

11,70015,60022,60027,40033,300

314418606734892

35 to 100 psig / 2.4 to 6.9 bar1K748527202

Red

40 2.8

6080

100125150200250

4.15.56.98.6

10.313.817.2

1030145017902200258033704170

27.638.948.059.069.190.3112

4070579073408940

10,40013,50016,900

109155197240279362453

853012,20015,70019,10022,50029,40036,200

229327421512603788970

11,00020,00027,40033,300

300536734892


Bulletin 71.2:627F

8

Table 8. Flow Capacities in SCFH / Nm3/hof0.6SpecificGravityNaturalGasat1%DroopinAbsoluteOutletPressureforNPS2/DN50(Downstream Control Line in Body Size Piping)

Table 7. Flow Capacities in SCFH / Nm3/hof0.6SpecificGravityNaturalGasat1%DroopinAbsoluteOutletPressureforNPS1/DN25(Downstream Control Line in Body Size Piping) (continued)


COLOR CODE

OUTLETPRESSURE

SETTING

INLETPRESSURE




35 to 100 psig / 2.4 to 6.9 bar1K748527202

Red

50 3.4

7080

100125150200250

4.85.56.98.6

10.313.817.2

1130137017702200259033704170

30.336.747.459.069.490.3112

4450542070608940

10,40013,50016,900

119145189240279362453

930011,40014,90019,10022,50029,40036,200

249306399512603788970

11,20018,30024,40033,300

300490654892

60 4.1

80100125150200250

5.56.98.6

10.313.817.2

122017002170258033704170

82.745.658.269.190.3112

479067308700

10,30013,50016,900

128180233276362453

10,00014,20018,40022,50029,40036,200

268381 493603788970

12,90022,90030,300

346614812

75 5.2

100125150200250

6.98.6

10.313.817.2

14902080255033704170

39.955.768.390.3112

58708250

10,20013,50016,900

157221273362453

12,30016,90020,30029,40036,200

330453544788970

18,00028,100

482753

100 6.9

125150200250

8.610.313.817.2

1660236033304170

44.563.389.2112

66809320

13,40016,900

179250359453

13,90020,00028,30036,200

373536758970

19,400 520



COLOR CODE

OUTLETPRESSURE

SETTING

INLETPRESSURE




5 to 35 psig / 0.34 to 2.4 bar1B788327022

Silver

5 0.34

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

700860

10201170149018002200258033704170

18.823.127.331.439.948.259.069.190.3112

2840350041404780606073408940

10,50013,70016,900

76.193.8111128162197240281367453

615077609180

10,60013,40016,30019,80023,40030,00030,000

165208246284359437531627804804

10,10013,80016,30018,80023,80028,90030,000

271370437504638775804

10 0.69

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

690860

10201170149018002200258033704170

18.523.127.331.439.948.259.069.190.3112

2760350041404780606073408940

10,50013,70016,900

74.093.8111128162197240281367453

587077609130

10,60013,40016,30019,80023,40030,50037,600

1572082462843594375316278171008

950013,80016,30018,80023,80028,90035,100

255370437504638775941

20 1.4

3040506080

100125150200250

2.12.83.54.15.56.98.6

10.313.817.2

590820

10001170149018002200258033704170

15.822.026.831.439.948.259.069.190.3112

2310325040304780606073408940

10,50013,70016,900

61.997.1108128162197240281367453

475068208570

10,60013,40016,30019,80023,40030,50037,600

1271832302843594375316278171008

700010,90013,90018,80023,80028,90035,100

188292373410638775941


- continued -

Bulletin 71.2:627F

9

Table 8. Flow Capacities in SCFH / Nm3/hof0.6SpecificGravityNaturalGasat1%DroopinAbsoluteOutletPressureforNPS2/DN50(Downstream Control Line in Body Size Piping) (continued)

Figure 3.TypicalPerformanceCurvefor3/4NPTType627FRegulator

2 3/8-INCH / 9.5 mm ORIFICE. ACTUATOR SPRING 35 to 100 psig / 2.4 to 6.9 bar RANGE (RED COLOR CODE) PILOT SPRING 200 psig / 13.8 bar INLET PRESSURE

FLOW RATE THOUSANDS OF SCFH / Nm3/h OF 0.6 SPECIFIC GRAVITY NATURAL GAS

OU

TLET

PR

ESSU

RE,

psi

g

52

49

50

51

0

0 / 0 5 / 0.1 25 / 0.7 35 / 0.930 / 0.820 / 0.515 / 0.410 / 0.3

OU

TLET PRESSU

RE, bar

3.5

± 1%

0.00

3.42


COLOR CODE

OUTLETPRESSURE

SETTING

INLETPRESSURE




5 to 35 psig / 0.34 to 2.4 bar1B788327022

Silver

30 2.1

506080

100125150200250

3.54.15.56.98.6

10.313.817.2

9301140149018002200258033704170

24.930.639.948.259.069.190.3112

36804530606073408940

10,50013,70016,900

98.6121162197240281367453

76709540

13,50016,30019,80023,40030,50037,600

2062563624375316278171008

12,10015,30023,80028,90035,100

324410638775941

35 to 100 psig / 2.4 to 6.9 bar 1K748527202

Red

40 2.8

6080

100125150200250

4.15.56.98.6

10.313.817.2

1030145017902200258033704170

27.638.948.059.069.190.312

4070579073408940

10,40013,50016,900

109155197240279362453

844012,30016,30019,80023,40030,50037,600

2263304375316278171008

12,00019,70028,90035,100

322528775941

50 3.4

7080

100125150200250

4.85.56.98.6

10.313.817.2

1130137017702200259033704170

30.336.747.459.069.490.3112

4450542070608940

10,40013,50016,900

119145189240279362453

846011,30015,00019,80023,40030,50037,600

2273034025316278171008

14,00017,90024,20035,100

375480649941

60 4.1

80100125150200250

5.56.98.6

10.313.817.2

122017002170258033704170

32.745.658.269.190.3112

479067308700

10,30013,50016,900

128180233276362453

986014,10018,50023,40030,50037,600

2643784966278171008

14,00022,40030,000

375600804

75 5.2

100125150200250

6.98.6

10.313.817.2

14902080255033704170

39.955.768.390.3112

58708250

10,20013,50016,900

157221273362453

12,10017,30021,70030,50037,600

3244645828171008

18,80027,600

504740

100 6.9

125150200250

8.610.313.817.2

1660236033304170

44.563.389.2112

66809320

13,40016,900

179250359453

13,70019,40028,50037,600

3675207641008

21,200 568


Bulletin 71.2:627F

10

Figure 4. Dimensions

10.5 / 267

5.50 / 140

1.00 / 25.4

TYPE 6351FTYPE P594-1 FILTER (OPTIONAL)

12B2138_E

8.06 / 205

Ø 4.69 / 119

A

B

G D

BODY SIZE END CONNECTIONSTYLE

DIMENSIONS, Inches / mm

A B D F GInches DN

3/4 - - - - NPT 4.06 103 1.94 49 6.75 171 - - - - - - - - 2.00 51

1 - - - - NPT 4.06 103 1.94 49 6.75 171 - - - - - - - - 2.00 51

1 25

CL150 RF 7.25 184 3.62 92

6.75 171 4.38 111

2.12 54

CL300 RF 7.75 197 3.88 99 2.44 62

CL600 RF 8.25 210 4.12 105 2.44 62

PN 16/25/40 7.80 198 3.90 99 2.31 59

2 50

NPT 5.00 127 2.50 64 7.12 181 - - - - - - - - 2.62 67

CL150 RF 10.00 254 5.00 127

7.12 181 4.75 121

3.00 76

CL300 RF 10.50 267 5.25 133 3.25 83

CL600 RF 11.25 286 5.62 143 3.25 83

PN 16/25/40 10.31 262 5.16 131 3.25 83

9.12 / 232

5.50 / 140

1/4 NPT SUPPLY CONNECTION WITH OPTIONAL TYPE P594-1 FILTER

F

DG

TYPE 6351F

8.06 / 205

Ø 4.69 / 119

A

B

INCHES / mm12B7144_C

Table 9. Dimensions

Bulletin 71.2:627F

11

Ordering Guide Body Material, Body Size, and End Connection Style(Select One)Ductile Iron 3/4 NPT*** 1 NPT*** 2 NPT***WCC Steel 3/4 NPT*** 1 NPT*** NPS 1 / DN 25, CL150 RF** NPS 1 / DN 25, CL300 RF** NPS 1 / DN 25, CL600 RF** NPS 1 / DN 25, PN 16/25/40** 2 NPT*** NPS 2 / DN 50, CL150 RF** NPS 2 / DN 50, CL300 RF** NPS 2 / DN 50, CL600 RF** NPS 2 / DN 50, PN 16/25/40**Spring Case and Diaphragm Casing Material (Select One) Aluminum*** Ductile iron*** WCC steel***

Trim Material (Select One) Aluminum*** Stainless steel***Orifice Size (Select One) 3/8x1/8-inch/9.5x3.2mm** 3/8x1/4-inch/9.5x6.4mm** 3/8-inch/9.5mm*** 1/2-inch / 13 mm***Outlet Pressure Range (Select One) 5 to 35 psig / 0.34 to 2.4 bar, Unpainted*** 35 to 100 psig / 2.4 to 6.9 bar, Red***Pilot Supply Filter (Optional) Type P594-1Pilot Supply Steel Tubing (Optional) With Type P594-1 Filter Without FilterReplacement Parts Kit (Optional) Yes, send one replacement parts kit to match this order.

Ordering Information

Application

When ordering, specify:

1. Type of regulator 2.Bodysize 3. Body material and trim material 4.Orificesizeininches/mm 5. Control spring range in psig / bar

Construction

Refertothespecificationsandtoeachreferencedtable; specify the desired selection whenever there is a choice to be made. The standard assembly position is shown in Figure 1, but an alternate assembly position may be factory-ordered or can be accomplished in the fieldbyunboltingthebodyorspringcaseusingtheinstructions in the appropriate section of the instruction manual. For installation dimensions, refer to Figure 4.

Bulletin 71.2:627F

©Emerson Process Management Regulator Technologies, Inc., 1990, 2013; All Rights Reserved

The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC, a business of Emerson Process Management.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees,expressorimplied,regardingtheproductsorservicesdescribedhereinortheiruseorapplicability.Wereservetherighttomodifyorimprovethedesignsorspecificationsofsuchproducts at any time without notice.

Emerson Process Management Regulator Technologies Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Process Management Regulator Technologies Inc. product remains solely with the purchaser.

Industrial Regulators

Emerson Process Management Regulator Technologies, Inc.

USA-HeadquartersMcKinney,Texas75069-1872,USATel:+18005585853OutsideU.S.+19725483574

Asia-PacificShanghai 201206, ChinaTel:+862128929000

EuropeBologna 40013, ItalyTel: +39 051 419 0611

Middle East and AfricaDubai, United Arab EmiratesTel:+97148118100

Natural Gas Technologies

Emerson Process ManagementRegulator Technologies, Inc.

USA-HeadquartersMcKinney,Texas75069-1872,USATel:+18005585853OutsideU.S.+19725483574

Asia-PacificSingapore128461,SingaporeTel:+6567708337

EuropeBologna 40013, ItalyTel: +39 051 419 0611Chartres28008,FranceTel: +33 2 37 33 47 00

TESCOM

Emerson Process ManagementTescom Corporation

USA-HeadquartersElk River, Minnesota 55330-2445, USATels:+17632413238 +18004471250

EuropeSelmsdorf 23923, GermanyTel:+493882331287

Asia-PacificShanghai 201206, ChinaTel:+862128929499

For further information visit www.fisherregulators.com

Specification WorksheetApplication:SpecificUseLineSizeGasTypeandSpecificGravityGas TemperatureDoestheApplicationRequireOverpressureProtection? Yes No If yes, which is preferred: Relief Valve Monitor Regulator Shutoff DeviceIsoverpressureprotectionequipmentselectionassistancedesired?

Pressure:MaximumInletPressure(P1max)Minimum Inlet Pressure (P1min)Downstream Pressure Setting(s) (P2)MaximumFlow(Qmax)

Performance Required:AccuracyRequirements?NeedforExtremelyFastResponse?

Other Requirements:

Regulators Quick Order Guide* * * Readily Available for Shipment

* * Allow Additional Time for Shipment

* Special Order, Constructed from Non-Stocked Parts. ConsultYourlocalSalesOfficeforAvailability.

Availability of the product being ordered is determined by the component with the longestshippingtimefortherequestedconstruction.

627f pressure reducing regulator bulletin

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