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CSA Certified: ANSI Z21.18 / CSA 6.3 Gas Appliance Pressure Regulator / File # 1135455

UL Unlisted Component File # MH 16727 (sp)

EU Gas Appliance Drective EN 88-1 / CE-0087 AU 0030

Commonwealth of Massachusetts Approved Product Approval code G1-1107-35

FRI 7../6 Gas Pressure RegulatorInstallation Instructions

Table of Contents

USA CDN

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . Page 1Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1Attention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2Lock-up Pressure Parameters. . . . . . . . . . . . . . Page 3Regulator Orifice Diameters . . . . . . . . . . . . . . . Page 3Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3Mounting & Installation . . . . . . . . . . . . . . . . . . . Page 4Pressure Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5Breather Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6Vent Limiting Device & Vent Line Connection Page 6Operation & Maintenance . . . . . . . . . . . . . . . . . Page 7Flow Curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8Outlet pressure springs . . . . . . . . . . . . . . . . . . . Page 9Dimensions & Part Numbers . . . . . . . . . . . . . . . Page 9

Approvals

1, 2, 3 ... = Action• = Instruction

Explanation of symbols

Attention

On completion of work on the pressure regulator, perform a leakage and function test.

Please read the instruction be-fore installing or operating. Keep the instruction in a safe place. You find the instruction also at www.dungs.com If these instructions are not heeded, the result may be personal injury or damage to property.Any adjustment and application-specific adjustment values must be made in accordance with the equipment manufacturers instructions.

IFGCCSAUL

ANSINFPA

This product is intended for installations covered by, but not limited to, the following codes and standards: NFPA 86, CSD-1, ANSI Z21.13, UL 795, NFPA 85, CSA B149.3, NFPA 37 or CSA B149.1.

Breather plug

Never close Breather hole!

Breather hole

Safetyfirst

O.K.

The installation and maintenance of this product must be done under the supervision of an ex-perienced and trained specialist. Never perform work if gas pres-sure or power is applied, or in the presence of an open flame.

Accessories & Replacement . . . . . . . . . . . . . . . Page 10

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Specification

Max. Operating Pressure (MOP)7 PSI (500 mbar) UL & CE5 PSI (350 mbar) CSAMax. Body Pressure (MOP)15 PSI (1bar)

Ambient / Fluid Temperature• +5 °F to +150 °F for up to 7 PSI for regulatingbehavior(≈-15...65°C) (+/-10%ofsetpoint)• -40°Fto+150°F• CSACertifiedfor-40°Fto+150°Fupto5PSI:Diaphragmsaresuit-able for the low temperature, but there may be out of range regulat-ingbehavior.

• -15°Cto+70°CappliestotheCEMarking.

GasesDry, natural gas, propane, butane;other noncorrosive gases.Suitableforupto0.1%byvolume,dryH2S.A “dry” gas has a dew point lowerthan+15°Fanditsrelativehumidityislessthan60%.Materials in contact with GasHousing:AluminumSealingsonvalveseats:NBR-basedrubber

°F

0-40

+150

FRI/6 Gaspressureregulator(lock-uptype)withintegratedgasfilterinonehousing.TheFRI/6seriesregulatormounts directlytotheDMV701,702and703seriesvalves.Suitableasstand-alonewhenusingtwoflanges.

Gas

Maximum pressure drop and gas velocityThemaximumpressure drop is lit-mitedbythecelocityofthegas.Donotexceedagasvelocityof30meters/s.

Strainer23Mesh,installedinthehousingFilterMesh <0.05 mm, installed in thehousing

Hysteresis and DroopHysteresis/repeatabilityislessthan10%forupto7PSI inlet.Averagedroopat20:1turndownis10%forup to 7 PSILock-Up Rating• TheFRImeetstheANSIZ21.80/CSA6.22asClassI,whichallowslockupratingnotmorethan150%or5in.W.C.,whicheverisgreater.

• TheFRImeetsEN88-1asSG30,whichallowslock-upashighas+30%oftheoutletpressure.

• See lock-upPressureParameteronpage2formoredetails

Body Size SizeFRI705/6&707/6 1/2“-1“NPTFRI710/6&712/6 1“-2“NPT

[PSI]

Vent Limiting Device and Vent Line ConnectionThe FRI/6 has an internal, factoryinstalled vent limiter, which limitstheescapeofgas to less than0.5CFH@5PSI incaseatmosphericdiaphragm ruptures. Vent limitingdevicealsocomplieswithEN88-1&ISO2355-1.Ventingrequiredunlessotherwiseacceptedbytheauthorityhavingjurisdiction.

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0PerANSIZ21.80,lock-upisdefinedasanoutletpressurenotmorethan150%or5in.W.C,whicheverisgreater,abovethesetpointafteradownstreamsafetyshutoffvalvecloseswithin2seconds,andthetwofollowingconditionsexist:1.outletpressureissettothehighestsetpointofthespring,and

2.theregulatorissettomaximumcapacityorflowatwhichthe regulatorwill control lockuppressurewithin theac-ceptablelimits.

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

PerDUNGS, lock-up is+30%of theoutlet pressure set-tingafterdownstreamshutoffvalveslowlycloseswithin30seconds.Therefore,inagivenapplication,alockupgreaterthan+30%or5in.W.Ccouldoccur,dependingontheinletpressure,theoutletpressureoftheregulator,theflowrateoftheregulator,andthepipevolumedownstreamtheregulatorandupstreamthesafetyshutoffvalve.

If in agivenapplication the lock-uppressure is toohigh,employingoneormoreof the followingshould reduce thelock-uppressure:1.Increasethesizeoftheregulator.2.Increasethepipevolumedownstreamtheregulatorandupstreamthesafetyshutoffvalve.

3.Decreasetheinletpressure.4.Decreasetheouletpressure.5.Reducetheflowrate.6.Removeventline,ifinstalled.

Lock-up Pressure Parameters

Regulator Orifice Diameters

Regulator Type Orifice Diameter (mm)FRI705/6 17.0FRI707/6 24.0FRI710/6 29.0FRI712/6 37.5

Recommended Mounting ProcedureRegulatordomefromverticallyuprighttolyinghorizontally

Mounting

If the flow is not in the same direction of the arrows, the regulator will not operate properly.

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Mounting & Installation

Recommended Procedure to Mount Flanges1. Makesuretheo-ringsandthegroovesarecleanandin

goodcondition.2. InstalltheFRI/6withthegasflowmatchingthedirection

indicatedbythearrowsonthecasting.3. MounttheFRI/6verticaluprighttohorizontal.4. Cleanthemountingsurfaceoftheflanges.Makesurethey

areingoodcondition.5. AttachtheFRI/6totheflangesusingtheappropriateM6

orM8socketcapboltssupplied.

• Theregulatorcanbemountedeitherupstreamordown-streamoftheDMV.Itcanalsobemountedasastandaloneregulatorusingtwoflangesandtheflangemountingkit.

• Themaingassupplymustbeshutoffbeforestartingtheinstallation.

• Examinetheregulatorforshippingdamage.• Theinsideoftheregulatorandpipingmustbecleanandfreeofdirt.

Recommended Procedure to Mount the FRI/6 regulator to a DMV 701, 702, or 703 series safety shutoff valve.1. Replacetheo-ringinthegrooveonthesideoftheDMV

bodywiththeovalo-ringsuppliedwiththemountingkit.2. Makesuretheovalo-ringandthegroovearecleanand

ingoodcondition.3. InstalltheFRI/6regulatorandDMVseriesvalvewiththe

gasflowmatchingthedirectionindicatedbythearrowsonthebody.

4. AttachtheregulatortotheDMVseriesvalvebodyusingthesocketcapboltssuppliedintheFRI/DMVmountingkit.

5. Usea5mmAllenwrenchfortheFRI705/6&707/6.6. Usea6mmAllenwrenchfortheFRI710/6&712/6.7. Tightentheboltsincrisscrosspattern.8. Donotovertightenthebolts.Followthemaximumtorque

valueslistedbelow.9. Afterinstallationiscomplete,performaleaktesttoverify

thatnoleakageoccurs.

Recommended Piping Procedure & Applying Pressure• Usenew,properlyreamedandthreadedpipefreeofchips.• Applygoodqualitypipesealant,puttingamoderateamount onthemalethreadsonly.Ifpipesealantlodgesonthe regulatorseat,itwillpreventproperoperation.IfusingLP gas,usepipesealantratedforusewithLPgas.• Donotthreadpipetoofar.Valvedistortionand/ormalfunc-tionmayresultfromexcesspipeinthevalvebody.

• Applycounterpressureusingaparallel jawwrenchonlytotheflatsontheflangewhenscrewingthepipeintotheflanges.

• Donotovertighten thepipe.Follow themaximumtorquevalueslistedbelow.

• Afterinstallationiscompleteandpressureisapplied,per- formaleaktest.

6. Usea5mmAllenwrenchfortheFRI705/6&707/6.7. FortheFRI710/6&712/6,theretwooptionsforbolts: For 1” and 1 1/4” flanges, the M8 x 35 mm bolts must

be used. For 1 1/2” and 2” flanges, the M8 x 40 mm bolts must

be used.8. Tightentheboltsinacrisscrosspattern.9. Donotovertightenthebolts.Followthemaximumtorque valuesbelow.10.Afterinstallationiscomplete,performaleaktest.

If the flow is not in the same direction of the arrows the regulator will not operate properly.

Recommended Torque for Piping1/2” 3/4” 1” 11/4” 11/2” 2” NPT

pipe375 560 750 875 940 1190 [Ib-in]

Recommended Torque for Mounting BoltsM6 M8 Bolt Size62 134 [Ib-in]

Recommended Torque BoltsM6 M8 Blot Size62 134 [Ib-in]

When first applying pressure, open the inlet manual shutoff valve slowly. Quickly opening

the inlet manual shutoff valve can permanently rup-ture the internal, balancing diaphragm.

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Pressure TapsFRI pressure ports1, 2, 3 (Ports 2 and 3 arelocatedonflange)

Port1isthreadtypeG⅛asperDINISO228

Ports2and3arethreadtypeG⅛asperDINISO228

AllportscanbeusedwithaccessoriesorA2pressureswitches.

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Vent Limiting DeviceTheFRI/6seriesregulatorcontainsaninternal,factoryin-stalledventlimitingdevice,whichlimitstheescapeofgastolessthan0.5CFH@5PSIincaseatmosphericdiaphragmruptures.Ventingrequiredunlessacceptedbytheauthorityhavingjurisdiction.

Vent Line Requirements• Followthe localcodeforventsizingandterminationre-quirements.Intheabsenceoflocalcodes,followNationalFuelGasCodeNFPA54,theInternationalFuelGasCodeor theCSAB149.1 installationcode for venting require-ments.

• Terminatetheventtoanapprovedlocation.• Atthepointoftermination,theventlinemustbeprotectedfrominsectsandwaterintrusion.Itishighlyrecommendtoinstallaninsectscreenandterminatethepipewiththeexitfacingdownwardstopreventrainwaterfromentering.

Installation Procedure• Ifventingisrequired,theventlineistobeconnectedtotheupperdomeoftheFRIregulatorasillustrated.

• Removethebeatherplug.• Onindoorinstallationsrequiringventingoutdoors,runthepipingasshortandasdirectaspossible.

• TheventconnectionisG1/4.G1/4to1/4”NPTadapterisavailable:(P/N231944)withreplacablegasket(P/N171260).

Vent Limiting Device & Vent Line Connection

In the absence of venting codes and where vent-ing is required, each regulator must be vented

separately from all other vents.

Breather Plug• AllFRI’shaveabreatherplugthatthreadsintotheregula-tors’sventconnection.

Do not removed plastic breather plug unless venting outdoors is required.

Thisplugisnottheventlimiter,anditpreventsdebrisfromenteringtheupperchamberoftheregulator.Debrisintheupperchamberoftheregulatorwilladverslyaffectregulatorperformance.

• TheFRIregulatormustalsobeabletoexchangeairthroughthebreatherholeinordertoproperlyregulate.Donotplugthebreatherhole,andcleanitoutifnecessary.

Breather plug

Breather hole

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0Start-Up• Theinletandoutletshutoffvalvesshouldbothbeclosed.

• Slowlyopentheinletmanualshutoffvalvejustenoughto allowinletpressuretograduallybuilduptotheinletofthe regulatoruntilthesystemisfullypressurized.• Slowlyopentheoutletshutoffvalve(s)toallowasmallflow.

Set-Point Adjustment1. Removetheblackadjusmentcover.2. Toincreasetheoutletpressuresetpoint,turntheadjust-

mentspindleclockwisewithascrewdriver.3. Todecreasetheoutletpressuresetpoint,turntheadjust-

mentspindlecounterclockwisewithascrewdriver.4. Alwaysuseanaccuratepressuregaugeconnecteddown- stream from the regulator tomeasure theactualoutlet

pressure.5. Re-installblackadjustmentcover.6. Afteradjustingthesetpointfornormaloperationverifythat thegaspressureregulatoroperatesasintended.

Outlet Pressure Spring Replacement

1. Removetheblackadjustmentcover.2. Releasespringtensionbyturningtheadjustmentspindle completelycounterclockwisewithascrewdriver.3. Removethealuminumcap.4. Removeexistingspringandinsertnewspring.5. Re-installadjustementspindleandadjusttodesiredoutlet pressure.Followthesetpointadjustmentinstructions.6. Re-installtheadjusmentcover,andapplythenewoutlet pressure labelprovidedwithnewoutletpressure range

ontothenameplate.

Filter• Inspectthefilteratleastonceayear.• Replace thefilter if thepressuredropacross thefilter ismorethan4”W.C.

• Replace thefilter if thepressuredropacross thefilter ismorethantwiceashighasthefirstinstallationinspection.

Filter Change1. RemovetheFRI/6byfollowingthemountinginstructions

inreverseorder.2. Removethesupportring.3. Removethefilterinsert.4. Insertanewfilterinsert.5. Pressinthesupportring.6. Re-installtheFRI/6followingthemountinginstructions.7. Performafunctionandleaktest.

Operation & Maintenance

Quickly opening the inlet manual shutoff valve can permanently rupture the internal, balanc-

ing diaphragm.

During start-up, a pressure gauge must be used to read the setpoint of the regulator ourlet pres-

sure. After the safety shutoff valves are closed, the outlet pressure must not exceed the setpoint by more than 30 %. If the outlet pressure exceeds 30 % of the setpoint, see section on page 2 for lock-up pressure.

While adjusting the outlet pressure of the regu-lator, confirm that adjusting the outlet pressure

does not create a hazard to the burner.

Head Injury Risk:Never have head above or near the aluminum

cap when removing regulator spring. The spring ten-sion can be high enough to rapidly eject the aluminum cap with a large force.

Adjustment cover

Adjustment spindle for outlet pressure adjustment

Aluminum Cap. Turn only to remove outlet pressure spring

Spring

Breather plugOutlet

pressure label

Inlet Filter

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Regulator turndown characteristicswith gas filter / in regulated state.Inlet pressure is 20 in. W.C. and outlet is set to 4 in. W.C.

Aproximate flow increase in CFH (natural gas) when removing the integral filter from the FRI.

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

Flow (CFH) of natural gas; s.p. 0.65 at 60°F

Pres

sure

Dro

p (in

. W.C

.)

Max. FlowMin. Flow

TurndownTurndown

Turndown

Turndown

DensityofNaturalgas

Densityofgasusedf =

Type of gas Density[kg/m3] s.g. f

Naturalgas 0.81 0.65 1.00Butane 2.39 1.95 0.58Propane 1.86 1.50 0.66Air 1.24 1.00 0.80

Determining equivalent flow through valves using another gas

Vgasused = V Naturalgas x f° °

At a pressure drop of: FRI 705/6 FRI 707/6 FRI 710/6 FRI 712/60.8in.W.C. 25CFH 50CFH 390CFH 765CFH2.0in.W.C. 35CFH 70CFH 480CFH 940CFH4.0in.W.C. 35CFH 75CFH 575CFH 1180CFH8.0in.W.C. 35CFH 80CFH 700CFH 1510CFH

Flow Curve

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Order flanges separately.

Type Mounts to DMV Type

NPTFlanges

Order No.

Dimensions [inch]Dimensions[mm]

Weight [lbs] [kg]

a b c d e f g hFRI705/6 DMV701 1/2"-1" 230472 3.6

925.6 141

1.333

6.0152

7.7195

3.896

4.1104

5.5139

2.00,9

FRI707/6 DMV701 1/2"-1" 230473 3.692

5.6 141

1.333

6.0152

7.7195

3.896

4.1104

5.5139

2.00,9

FRI710/6 DMV702/3 1"-2" 230474 4.9124

6.9/8.1176/206

1.845

6.9175

9.3235

5.0126

5.3135

6.7169

3.51,6

FRI712/6 DMV702/3 1"-2" 230475 4.9124

6.9/8.1176/206

1.845

6.9175

9.3235

5.0126

5.3135

6.7169

3.51,6

ab

fh

g

ce

d

approx.1.60"/40mm

Requiredspacefor mounting A2 pressureswitch

FordimensionbFRI710/712:1,11/4in.NPT=6.93"FRI710/712:11/2,2in.NPT=8.11"

Requiredspacefor

changingspring

Dimensions & Part Numbers

Outlet pressure springsSpring Range (W.C.)Spring color

1to3.6brownNotCSA

2 to 5white

2.8to8orange

4to12blue Standard

10 to 22red

12to28yellow

24to44black

40to60pink

60to80greyNotCSA

FRI 705/6 - 707/6 229817 229818 229820 229821 229822 229823 229824 229825 229826FRI 710/6 - 712/6 229842 229843 229844 229845 229846 229847 229848 229849 229850

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

Karl Dungs, Inc.3890 Pheasant Ridge Drive NESuite 150Blaine, MN 55449, U.S.A.Phone 763 582-1700Fax 763 582-1799e-mail info@karldungsusa.comInternet http://www.dungs.com/usa/

Wereservetherighttomakemodificationsinthecourseoftechnicaldevelopment.

FlangesType Mounts to DMV Type Flange NPT Order No.FRI705/6-FRI707/6 DMV701 1/2" 222371FRI705/6-FRI707/6 DMV701 3/4" 222368FRI705/6-FRI707/6 DMV701 1" 221999FRI710/6-FRI712/6 DMV702orDMV703 1" 222369FRI710/6-FRI712/6 DMV702orDMV703 11/4" 222370FRI710/6-FRI712/6 DMV702orDMV703 1 1/2" 222003FRI710/6-FRI712/6 DMV702orDMV703 2" 221997

Stand alone mounting kit (one kit included in each FRI box)

Order No. Includes

FRI705/6&FRI707/6 224093 Consistsof8bolts:M6x30;2xo-rings.FRI710/6&FRI712/6 224094 Consistsof8bolts:M8x35for1"NPTand11/4"NPT,

and8bolts:M8x40for11/2"NPTand2".2o-rings

DMV mounting kit (one kit included in each FRI box)

Order No. Includes

FRI705/707onDMV701 219967 4bolts:M6x30and1o-ring.FRI710/6&FRI712/6 219968 4bolts:M8x45and1o-ring

Accessories & Replacement

Filter & Strainer Order No. Includes

FRI705/6&FRI707/6 230440 Strainer & FilterFRI710/6&FRI712/6 230441 Strainer & Filter