Gas Appliance Pressure Regulators and Line Pressure Regulators

FRS 7../6 SeriesFRS 5... Series

CSA Certified•ANSIZ21.18•CSA6.3asaGasAppliancePressureRegulator•ANSI Z21.80 • CSA 6.22 (FRS/6seriesonly)asa5PSIClassI

LinePressureRegulator•File#1205910

NPT Threaded Versions•FRS705/6(1/2”NPT)•FRS707/6(3/4”NPT)•FRS710/6(1”NPT)•FRS712/6(11/4”NPT)•FRS715/6(11/2”NPT)•FRS720/6(2”NPT)•FRS725/6(21/2”NPT)•FRS730/6(3”NPT)

ISO Flanged Versions•FRS5040(11/2”)•FRS5050(2”)•FRS5065(21/2”)•FRS5080(3”)•FRS5100(4”)•FRS5125(5”)•FRS5150(6”)

Commonwealth of Massachusetts Approved Product•ApprovalcodeG1-1107-35•Gaspressureregulator

Codes and Standards:Thisproductisintendedforinstallationscovered by but not imited to NFPA37,NFPA86,NFPA54,CSD-1,UL795,ANSIZ83.4,ANSIZ83.18,ANSIZ21.13,orCSAB149.3.

DUNGS is an ISO 9001 manufacturing facility.

FRSS

alesbroch

ure•P/N

244

909

•Ed.01/09

DescriptionTheFRS7../6Threaded&FRS5...Flang-edpressureregulators,arespring-loadedpressure regulators with an adjustablesetpoint.Bothfeatureaninternalsensorforregulatingoutputpressure.- FRS7../6Inputpressuresupto10PSI

(Seespecificationsformoredetails)- FRS5...FlangedInputpressuresup

to7PSI- Highflowrate- Sturdy,preciseandsensitiveregula-

tionofregulatoroutputpressure- Inlet pressure compensation dia-

phragms- NPT1/2”toNPT3”threadconnec-

tions(FRS7../6)- DN40toDN150flangedconnections

(FRS5...Flanged)

- Lock-up type regulator (seepage2and3fordetails).

-Factoryinstalledventlimiter.Reviewapplicablecodesforventlinerequire-ments.

ApplicationTheFRSseriesgaspressureregulatorsarerecommendedforindustrialandcommercialheatingapplicationsandaresuitablefornaturalgas,propane,butane,airandinertgases.TheFRSdoesnotcontainanynon-ferrousmet-alsandissuitableforgasescontainingnomorethan0.1%byvolume,dryH2S.

1 … 6

2 … 7

Specifications

Bodysize(FRS7../6threadedseries)pipesize(TypeNPT)

Bodysize(FRS5...flangedseries)pipesize(TypeISOweldedflange)

Max.inletoperatingpressure FRS7../6

Max.inletoperatingpressure FRS5...FlangedInputpressurerangeforoptimalcontrol FRS7../6 FRS5...FlangedMax.bodypressure FRS7../6 FRS5...FlangedOutputpressurerangeMaterialsincontactwithgas

Ambienttemperature FRS7../6

Ambienttemperature FRS5...FlangedInstallationpositionVentlineconnection/ventlimiter

TurndownHysteresisandDroop

Lock-upRating

705/6 707/6 710/6 712/6 715/6 720/6 725/6 730/61/2“ 3/4“ 1“ 11/4“ 11/2“ 2“ 21/2“ 3“

5040 5050 5065 5080 5100 5125 51501-1/2“ 2“ 2-1/2“ 3“ 4“ 5“ 6“ConnectionflangeasperDIN2501Part1:FitspreweldflangesasperDIN2633(PN16)DN40toDN150,perISO7085-1(PN16),orperISO7005-2(PN16)10PSI(700mbar)atambient+5to+160°Fandoutlet4-80“WC.5PSI(350mbar)appliestoCSACertification.

7PSI(500mbar)+5°Fto+150°F(-15°Cto+70°C)5PSI(350mbar)appliestoCSACertification

2in.W.C.to200in.W.C.(5mbarto500mbar)2in.W.C.to200in.W.C.(5mbarto500mbar)

15PSI(1000mbar)10PSI(700mbar)1in.W.C.to80in.W.C.(2.5mbarto200mbar).Seespringselectionbelow.Housing: Aluminum,steel(freeofnon-ferrousmetals)Sealsanddiaphragms: NBR-basedrubber+5°Fto+160°Fforupto10PSIforregulatingbehavior(+/-10%ofsetpoint).-40°Fto+160°Fforupto5PSI:Diaphragmsaresuitableforthelowtempera-ture,buttheremaybeoutofrangeregulatingbehavior.CSACertifiedfor-40°Fto+160°Fforupto5PSI.

+5°Fto+150°Fforupto7PSI(-15°Cto+70°C)RegulatordomefromverticallyuprighttolyinghorizontallyVentlineconnectionisG1/4“forFRS‘supto1“NPT,anditisG1/2“forFRS‘s11/4to3“NPT.TheFRS/6alsohasafactoryinstalledventlimiter,whichlimitstheescapeofgastolessthan0.5CFHincaseatmosphericdiaphragmruptures.Noventingisrequiredwhenacceptedbytheauthorityhavingjurisdiction.Ratedfor20:1Hysteresis/repeatabilityislessthan10%forupto7PSIinlet.Averagedroopat20:1turndownis10%forupto7PSI.TheFRSmeetstheANSIZ.21.80/CSA6.22asClassI,whichallowslockuprating•notmorethan150%or5in.W.C,whicheverisgreater.TheFRSmeetsEN88asSG30,whichallowslock-upashighas+30%ofthe•outletpressure.SeeLock-uppressureparametersonpage3formoredetails.•

FRS Spring-loadedpressureregulatorwithadjustablesetpointspring.Internalsensorforregulatingoutputpres-sure.

3 … 7

Outlet Pressure Spring Selection (outlet pressure values are for horizontal pipe mounting)Theoutputpressureiscontrolledbytheforceoftheadjustablespring.ThepressureregulatorissuppliedwiththebluespringNo.4.Byexchangingsprings,otheroutputpressurescanbeattained.Subtract1”W.C.whenmountedvertically.

Spring Range (W.C.)Spring color

FRS 705/6FRS 707/6FRS 710/6FRS 712/6, 715/6, 5040FRS 720/6 & 5050FRS 725/6, 730/6, 5065, 5080FRS 5100FRS 5125FRS 5150

24to40black

229-824229-839229-848229-871

229-880229-889

229-898229-907229-915

2.8to8orange

229-820229-835229-844229-853

229-876229-885

229-894229-903229-911

2to5white

229-818229-834229-843229-852

229-875229-884

229-893229-902229-910

1to3.6brownNotCSA229-817229-833229-842229-851

229-874229-883

229-892229-901229-909

12to28yellow

229-823229-838229-847229-870

229-879229-888

229-897229-906229-914

4to12bluestandard

229-821229-836229-845229-854

229-877229-886

229-895229-904229-912

10to22red

229-822229-837229-846229-869

229-878229-887

229-896229-905229-913

40to60pink

229-825229-840229-849229-872

229-881229-890 229-899229-908229-916

60to80greyNotCSA229-826229-841229-850229-873

229-882229-891 229-900243-416243-417

PerANSIZ21.80,lock-upisdefinedasanoutletpressurenotmorethan150%or5in.W.C,whicheverisgreater,abovethesetpointafteradownstreamsafetyshutoffvalvecloseswith2seconds,andthetwofollowingconditionsexists:1)outletpressureissettothehighestsetpointofthespring,

and2)theregulatorissettomaximumcapacityorflowatwhich

the regulatorwillcontrol lockuppressurewithin theac-ceptablelimits.

Thismeansthatinagivenapplication,alockupgreaterthan150%or5in.W.Ccouldoccur,dependingouttheinletpres-sure,theoutletpressureoftheregulator,theflowrateoftheregulator,andthepipevolumedownstreamtheregulatorandupstreamthesafetyshutoffvalve.

PerEN88,lock-upis+30%oftheoutletpressuresettingafter downstream shutoff valve slowly closeswithin 30seconds.Therefore,inagivenapplication,alockupgreaterthan+30%or5 in.W.Ccouldoccur,dependingout theinletpressure,theoutletpressureoftheregulator,theflowrateoftheregulator,andthepipevolumedownstreamtheregulatorandupstreamthesafetyshutoffvalve.

If inagivenapplicationtheLock-uppressure istoohigh,imployingoneormoreofthefollowingshouldreducethelock-uppressure:

1)increasethesizeoftheregulator.2)increasethepipevolumedownstreamtheregulatorand

upstreamthesafetyshutoffvalve.3)decreasetheinletpressure.4)decreasetheouletpressure.5)reducetheflowrate.

Lock-up Rating Parameters

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Pressure Taps - FRS 7../6 Threaded Version

1Vent/breatherconnection FRS705/6-FRS710/6,G1/4in. FRS712/6-FRS730/6,G1/2in.

2Externalfeedbackpressureconnection FRS705/6-FRS710/6,G1/4in.-oneside. FRS712/6-FRS730/6,G1/4in.-bothsides.

3Upstreampressureconnection FRS705/6-FRS710/6,1/4in.NPT-oneside. FRS705/6-FRS710/6,G1/4in.-oneside. FRS712/6-FRS730/6,1/4in.NPT-bothsides.

4Downstreampressureconnection FRS705/6-FRS710/6,1/4in.NPT-oneside. FRS712/6-FRS730/61/4in.NPT-bothsides.

Pressure Taps - FRS 5... Flanged Version

FRS Flanged1Vent/breatherconnection FRS5040-FRS5150,G1/2in.

2Externalfeedbackpressureconnection FRS5040-FRS5150,bothsidesG1/4in. Seecautionbelow.

3Upstreampressureconnection FRS5040-FRS5150,bothsidesG1/4in.

TheFRSalsohasafactoryinstalled,whichlimitstheescapeofgastolessthan0.5CFHincaseatmosphericdiaphragmruptures.Noventingisrequiredwhenacceptedbytheauthorityhavingjurisdiction.Checkapplicablecodesforrequirements.

AllFRSregulatorsalsoincorporateafactoryinstalledventlimterthatlimitstheescapeofgastotheambienttolessthan0.5ft3/hrincaseofdiaphragmfailure.

Whenusingexternalfeebackpressureconnection,theinternalfeedbacktubemustbesealedwithRTV.

FRS Flange AccessoriesSize Weld neck part # # of bolts/connection Bolt size **Bolt part # ***Seal part #

DN ISO 40 227-137 4 M16x55 135-940 100-164DN ISO 50 227-138 4 M16x55 135-940 030-221DN ISO 65 227-139 4 M16x65 135-930 099-408DN ISO 80 227-140 8 M16x65 135-930 030-254DN ISO 100 227-141 8 M16x65 135-930 030-304DN ISO 125 227-142 8 M16x75 148-830 030-312DN ISO 150 227-143 8 M20x80 135-950 030-403DN 65 to 2 1/2"NPT 243-690 4 M16x65 135-930 099-408DN 80 to 3"NPT 243-219 8 M16x65 135-930 030-254* When a control is used alone, one mating flange is needed for each end, for a total of two flanges. When one control is bolted to another, such as

an FRS to a DMV dual modular safety valve, one mating flange is needed for each end, for a total of two flanges.** Includes one bolt, one lock washer, and one nut.*** One seal needed for each flange.

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FRS 7../6 Dimensions inch (mm)

Pressuremax.

[PSI]

see specificationonpage2.see specificationonpage2.see specificationonpage2.see specificationonpage2.see specificationonpage2.see specificationonpage2.see specificationonpage2.see specificationonpage2.

FRS 7../6Type

FRS705/6

FRS707/6

FRS710/6

FRS712/6

FRS715/6

FRS720/6

FRS725/6

FRS730/6

Order No.

229-595

229-608

229-609

229-610

229-611

229-612

229-613

229-614

Size

NPT1/2

NPT3/4

NPT1

NPT11/4

NPT11/2

NPT2

NPT21/2 NPT3

Dimensions [inch]Dimensions[mm]

a

2.975

3.91004.31105.91505.91506.71709.1230

10.4265

b

4.51155.11305.71457.71957.71959.8250

11.2285

11.2285

c

0.924

1.128

1.36

1.640

1.640

1.947

3.795

3.795

d

5.61436.51657.51909.82509.8250

12.2310

15.9405

15.9405

e

G1/4

G1/4

G1/4

G1/2

G1/2

G1/2

G1/2

G1/2

f

8.92259.624512.231014.236514.236517.745023.259023.2590

Weight[lbs] [kg]

1.30.62.21.02.61.25.92.75.52.57.73.5

16.57.5

22.010.0

Order No.

065-144

065-151

058-792

079-681

082-552

013-250

013-268

p max.

[PSI]

7

7

7

7

7

7

7

b

7.71959.9250

11.2285

11.228513.8350

15.8400

18.9480

c

2.665

3.075

3.795

3.795

4.11055.31356.3160

d

11.0280

13.4340

16.0405

16.0405

19.5495

25.0635

30.7780

e

G1/2

G1/2

G1/2

G1/2

G1/2

G1/2

G1/2

f

15.639518.948023.259023.259029.976039.4100046.51180

size

DN40(11/2“)

DN50(2“)

DN65(21/2“)

DN80(3“)

DN100(4“)

DN125(5“)

DN150(6“)

a

7.92009.1230

11.4290

12.2310

13.8350

15.8400

18.9480

Dimensions [inch]Dimensions[mm]

Weight[lbs] [kg]

7.73.5

11.05.0

16.57.5

22.110.035.316.061.728.083.838.0

FRS 5...FlangedType

FRS5040

FRS5050

FRS5065

FRS5080

FRS5100

FRS5125

FRS5150

FRS 5... Flanged Dimensions inch (mm)

Field mountable adapter for vent connection

Field mountable adapter for vent connection

f

G 1/4 to 1/4” NPT Part # 231-944G 1/2 to 1/2” NPT Part # 231-945

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p2p1

8

7

5

4

3

2

1

6

10

9

FRS 7../6 sectional drawingPressure regulator in operating position

1 Housing2 Regulatingcup3 Internalfeedbacktube4 Compensationdiaphragm5 Diaphragmdisk6 Workingdiaphragm7 Safetydiaphragm8 Ventlineconnection9 Setpointspring10 Adjustmentdevice

Protect the pressure regulator from debris by using a suitable filter.

Spec.gravityofNaturalGas

Spec.gravityofgasused

f=

Vgasused=° V NaturalGasxf

° Typeofgasused

Naturalgas

Butane

Propane

Air

Density[kg/m3]

0.81

2.39

1.86

1.24

sg

0.65

1.95

1.50

1.00

f

1.00

0.58

0.66

0.80

Todeterminethepressuredropwhenusingagasotherthannaturalgas,usetheflowformulabelowandfvaluelocatedintheflowchartonthenextpagetodeterminethe“corrected”flowrateinCFHthroughthevalvefortheothergasused.Forexample,whenusingpropane,dividethevolume(CFH)ofpropanerequiredfortheapplicationbythecalculatedvaluef(f=0.66forpropane).Usethis“corrected”flowrateandtheflowcurveonthenextpagetodeterminepressuredropforpropane.

Usethisformulatocalculatortheffactorforothergasesnotlistedonthetable.

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Wereservetherighttomakeanychangesintheinterestoftechnicalprogress.

Karl Dungs GmbH & Co. KGP.O. Box 12 29D-73602 SchorndorfPhone +49 (0)7181-804-0Fax +49 (0)7181-804-166e-mail info@dungs.comInternet http://www.dungs.com

Karl Dungs Inc.524 Apollo Drive Suite 10Lino Lakes, MN 55014, U.S.A.Phone 651 792-8912Fax 651 792-8919e-mail info@karldungsusa.comInternet http://www.dungs.com

Flow Curve Using Natural Gas.Use as a quick reference for sizing a regulator in the regulated state at:Outlet pressure = 8 in. W.C.Inlet pressure = 20 in. W.C.Vmin = 0.05 x Vmax

Pressure RegulatorFRS 7.../6 ThreadedFRS 5... Flanged

Inlet Pressure 20 in. W.C.Outlet Pressure 4 in. W.C.

Operating Range