Data heet Pressur p ontr alve A- N 125 · Diff. pressure3),4) ∆pQnom (∆pQhigh) kPa 16-400...

1VD.C6.Q6.02 © Danfoss 04/2013SMT/SI

Data sheet

Pressure independent balancing and control valveAB-QM DN 10-250

• Trouble-freesegmentationofthebuildingproject.WhensectionsofaprojectarefinishedtheycannormallynotbehandedovertothecustomerwithafullyfunctionalHVACinstallation.HowevertheAB-QMwithaDanfossactuatorwillautomaticallycontroltheflow,evenwhenotherpartsoftheinstallationarestillunfinished.It’snotneededtoadjusttheAB-QMafterfinalisationoftheproject.

• Commissioningcosts,thecostsareclosetozerobecauseofaconvenientsettingprocedurewithouttheneedforflowcharts,calculationsormeasuringequipment.TheAB-QMvalvescanbesettoaprecisedesignvalueevenwhenthesystemisupandrunning.

• HalvedmountingcostsastheAB-QMvalvecoverstwofunctions,Balancing&Control

Theprecise flow control performanceoftheAB-QMwithaDanfossactuatorprovidesincreasedcomfortandsuperior Total Cost of Ownershipbecauseofsavingsmadeon:

• Efficientenergytransferandminimalpumpingcostssincetherearenooverflowsatpartialloadsbecauseoftheexactpressureindependentflowlimitation.

• Smallerpumpinvestmentsandlowerenergyconsumptionasthepumpheadneededislowerthaninthetraditionalsetup.Withthebuiltintestplugsitiseasytotroubleshootandfindtheoptimalsetpointforthepump.

• Reducedmovementsoftheactuatorsincethebuilt-indifferentialpressurecontrollerensurethepressurefluctuationsdonotinfluencetheroomtemperature.

• Achievingastabletemperatureinaroomleadingtoaloweraveragetemperatureatthesamecomfortlevel.

• Minimalflowcomplains,asthevalveperformsasdesigned.

• Minimalblockagecomplains,asthemembranedesignmakesAB-QMlesssusceptibletoblockagethanacartridgetypeconstriction.

Description

The AB-QM valve equipped with an actuator is a control valve with full authority and an automatic balancing function / flow limitation. Typical applications are: Temperature control with permanent automatic balancing on terminal units (chillers, air-handling units, fan coils, induction units, radiation panels and heat exchangers).

2 VD.C6.Q6.02 © Danfoss 04/2013 SMT/SI

Data sheet Pressure independent balancing and control valve AB-QM, DN 10-250

Applications-variableflowsystems

Air handling unit (AHU) / fan coil unit (FCU)

AnAB-QMwithaDanfossactuatorisusedasacontrolvalveforterminalunits,likeanAHU(AirHandlingUnit),FCU(FanCoilUnit)orradiationpanel.TheAB-QMensuresandcontroltherequiredflowoneveryterminalunitandmaintainsHydronicbalanceinthesystem.

Becauseoftheintegrateddifferentialpressurecontrollerthecontrolvalvealwayshas100%authorityandthereforeoffersalwaysstablecontrol.Atpartialloadthereisnooverflow,contrarytoconventionalsolutions,becausetheAB-QMwillalwayslimittheflowtoexactlywhatisneeded.ByinstallingtheAB-QMthewholesystemisdividedincompletelyindependentcontrolloops.

ThereisafullrangeofDanfossactuatorsavailablefortheAB-QM,suitableforeverycontrolstrategy.ActuatorsareavailableforOn/Off,0-10Volt,4-20mAorfloatingpoint.

Radiation panel

LINsettingstaysconstantatanyavailablepressu

re

LOGsetting

staysc

onstantat

anyavailable

pressure

0 10V0

100%

Fora

nygiven

100

%setting

Control performance TheAB-QMhasalinearcontrolcharacteristic.TheAB-QMispressureindependentwhichmeansthatthecontrolcharacteristicisindependentfromtheavailablepressureandisnotinfluencedbyalowauthority.TheflowlimitationontheAB-QMisachievedbylimitingthestrokeandtheDanfossactuatorscalibratetothestrokeofthevalves.ThismeansthattheAB-QMkeepsitslinearcharacteristicindependentofthesettingordifferentialpressure.

BecauseofthepredictablecharacteristictheactuatorsontheAB-QMcanbeusedtochangetheresponsefromlineartologarithmic(equalpercentage).ThatmakestheAB-QMsuitableforallapplications,includingAHUs,wheretheequalpercentagecharacteristicisneededtogetastablecontrolloop.Theactuatorscanbeswitchedfromlineartologarithmicbychangingadipswitchsettingontheactuator.



Applications -constantflowsystems

InconstantflowsystemwithFCUsorinaonepipeheatingsystemtheAB-QMcanbeinstalledasanautomaticbalancingvalveineveryriser.TheAB-QMlimitstheflowtothesetvalue,thusautomaticallyachievinghydronicbalanceinthesystem.

There are numerous applications in which AB-QM can be used. Every time you need an automatic flow limiter or a control valve you can take advantage of the cost-saving properties of the AB-QM. That includes systems with (floor) heating/cooling, concrete core activation or radiation panels.

Note: For more application examples please contact your local Danfoss organization.



Ordering AB-QM threadedversion(withtestplugsandwithouttestplugs)

Picture DN Qnom.

(l/h)Ext. thread(ISO228/1)

Code No. AB-QM Ext. thread(ISO228/1)

Code No.

10LF 150G½A

003Z1261G½A

003Z1251

10 275 003Z1211 003Z1201

15LF 275G¾A

003Z1262G¾A

003Z1252

15 450 003Z1212 003Z1202

20 900 G1A 003Z1213 G1A 003Z1203

25 1.700 G1¼A 003Z1214 G1¼A 003Z1204

32 3.200 G1½A 003Z1215 G1½A 003Z1205

40 7.500 G2A 003Z0760 AB-QM (DN 10-32) can not be upgraded to AB-QM with test plugs!50 12.500 G2½A 003Z0761

AB-QMflangedversion

Picture DN Qnom.

(l/h)Flange

connection Code No.

50 12.500

PN16

003Z0762

65 20.000 003Z0763

80 28.000 003Z0764

100 38.000 003Z0765

125 90.000 003Z0705

125HF 110.000 003Z0715

150 145.000 003Z0706

150HF 190.000 003Z0716

200 190.000 003Z0707

200HF 250.000 003Z0717

250 280.000 003Z0708

250HF 370.000 003Z0718

Set-pack (oneMSV-SandoneAB-QMwithouttestplugs)

Picture DN Qnom. (l/h)

Ext. thread (ISO228/1) Code No.

15LF 275G¾A

003Z1238

15 450 003Z1242

20 900 G1A 003Z1243

25 1.700 G1¼A 003Z1244

32 3.200 G1½A 003Z1245

• NoKvorauthoritycalculationsneeded.Flowistheonlyparametertobeconsideredwhendesigning.

• TheAB-QMalwaysfitstheapplicationbecausethemaximumsettingoftheAB-QMcorrespondswithinternationalstandardsforflowvelocityinpipes.

• TheAB-QMcanbeusedforallHVACapplicationssinceitcanhavealinearorlogarithmiccharacteristicwhencombinedwiththermalelectricorgearactuators.

• Compactdesign,essentialwhenonlylimitedspaceisavailable.Forexampleinfan-coilunits.

Easy implementation • Easycommissioning.Nospecializedstafformeasuringequipmentneeded.

• Easytroubleshooting.• Faststart-upbecauseAB-QMvalvesdon’t

needtobeflushedorde-airedbeforeuse.• Trouble-freesegmentationofthebuilding

project.TheAB-QMwillautomaticallycontroltheflow,evenwhenpartsoftheinstallationarestillunfinished.It’snotneededtoadjusttheAB-QMafterfinalisationofthebuildingproject.



Accessories & spare parts

TypeComments

Code No.To pipe To valve

Unionconnection(1pcs.)

R3/8 DN10 003Z0231

R1/2 DN15 003Z0232

R3/4 DN20 003Z0233

R1 DN25 003Z0234

R11/4 DN32 003Z0235

R11/2 DN40 003Z0279

R2 DN50 003Z0278

Tailpiecewelding(1pcs.)

Weld.

DN15 003Z0226

DN20 003Z0227

DN25 003Z0228

DN32 003Z0229

DN40 003Z0270

DN50 003Z0276

Tailpiecesforsoldering(2nuts,2gaskets,2solderingnipples

12x1mm DN10 065Z7016

15x1mm DN15 065Z7017

Shut-off&protectionpiece(max.closingpressure16bar)DN10-32

003Z1230

Shut-off-plastic(max.closingpressure1bar) 003Z0240

HandleAB-QM(necessaryaccessoryifinstallingvalvewithoutactuator)

DN40-100 003Z0695

DN125-250 003Z0696

AdapterforAB-QMDN10,G½internalthreadforAB-QM,G3/8internalthread(1pcs.) 003Z3954

AdapterforAB-QMDN15,G¾internalthreadforAB-QM,G¾Aexternalthread(1pcs.) 003Z3955

AdapterforAB-QMDN20,G1internalthreadforAB-QM,G1Aexternalthread(1pcs.) 003Z3956

AdapterforAB-QMDN25,G5/4internalthreadforAB-QM,G5/4Aexternalthread(1pcs.) 003Z3957

AdapterAMV(E)15/16/25/35(AB-QMDN40-100,2nd.generation) 003Z0694

AdapterAME435forAB-QMDN40-100(1st.generation) 065Z0313

Strokelimiter-TWA(5pcs.inabag) 003Z1237

AdapterAME13SUforAB-QM(1st.generation) 003Z3959

AdapterAME13SUforAB-QM(2nd.generation) 003Z3960

StemheaterforAB-QMDN40-100/AME15QM 065B2171

StemheaterforAB-QMDN40-100/AME435QM 003Z0693

StemheaterforAB-QMDN125,150/AME55QM 065Z7022

StemheaterforAB-QMDN200,250/AME85QM 065Z7021

Ordering(continuous)

Combinations AB-QM with electrical actuators (AB-QM DN 10-100) 1)

Valvetype Stroke(mm)

TWA-Z 3) AMI 140 ABNM AMV 110/120 NLAME 110/120 NL AME 435 QM

Recommendedorderingcodenumbers(fordetailsrefertodatasheetsfortheseactuators)

082F1266NC,230V

082H8048 AMI14024V,12s/mm,2-pointcontrol

082F1191Thermalact.LOG24V(0-10V)

082F1193Thermalact.LIN24V(0-10V)

082H8056AMV110NL24V,24s/mm,3-pointcontrol

082H8057AME110NL24V,24s/mm,0-10V

082H0171AME435QM24V

DN10-20 2.25 ü ü ü ü -

DN25,32 4.50 ü2) ü ü4) ü -

DN40,50 10 - - - - ü

DN65-100 15 - - - - ü

1) Minimum recommended AB-QM setting is 20 %2) up to 60 % of Qnom3) Please be aware that only this type of TWA actuator is to be used with AB-QM4) up to 90% od Qnom

Additional actuator’s functionality available, for more info please contact your local Danfoss organization.

Closing point (measure) for DN 10-32

10.4±0.3



Technical data

Nominal diameter DN 10 Low Flow 10 15

Low Flow 15 20 25 32 40 50

Flowrange

Qnom(100%)1)

l/h

150 300 300 450 900 1.700 3.200 7.500 12.500

Qhigh4) 180 360 360 540 1080 1.870

5)3.520

5)7.500 12.500

Settingrange2) % 20-120 20-110 40-100

Diff.pressure3),4)∆pQnom

(∆pQhigh)kPa

16-400(18-400)

20-400(23-400)

20-400(25-400)

30-400

Pressurestage PN 16

Controlrange Acc.tostandardIEC534controlrangeishighasCvcharacteristicislinear(1:1000)

Controlvalve’scharacteristic Linear(couldbeconvertedbyactuatortoequalpercentage)

Leakageacc.tostandardIEC534 Novisibleleakage(at100N)max.0.05%of

Qnomat500N

Forshutofffunction Acc.toISO5208classA-novisibleleakage

Flowmedium

WaterandwatermixtureforclosedheatingandcoolingsystemsaccordingtoplanttypeIforDINEN14868.

WhenusedinplantTypeIIforDINEN14868appropriateprotectivemeasuresaretaken.

TherequirementsofVDI2035,part1+2areobserved.

Mediumtemperature °C −10...+120

Stroke mm 2.25 4.5 10

Connection

ext.thread(ISO228/1)

G½A G½A G¾A G¾A G1A G1¼A

G1½A

G2A G2½A

actuator M30×1.5 Danfossstandard

Materials in the water

Valvebodies Brass(CuZn40Pb2-CW617N)GreyironEN-GJL-250(GG25)

MembranesandO-rings EPDM

Springs W.Nr.1.4568,W.Nr.1.4310

Cone(Pc) W.Nr.1.4305CuZn40Pb3-CW614N,

W.Nr.1.4305

Seat(Pc) EPDM W.Nr.1.4305

Cone(Cv) CuZn40Pb3-CW614N

Seat(Cv) CuZn40Pb2-CW617N W.Nr.1.4305

Screw StainlessSteel(A2)

Flatgasket NBR

Sealingagent(onlyforvalveswithtestplugs)

DimethacrylateEster

Materials out of the water

Plasticparts PA POM

Insertpartsandouterscrews CuZn39Pb3-CW614N;W.Nr.1.4310;W.Nr.1.4401 -

Ordering(continuous) Combinations AB-QM with electrical actuators (AB-QM, DN 125-250)Valvetype Stroke

(mm)AME 55 QM AME 85 QM

Recommendedorderingcodenumbers(fordetailsrefertodatasheetsfortheseactuators)

082H307824V,8s/mm,0-10V

082G1453 24V,8s/mm,0-10V

DN125 30 ü -

DN150 30 ü -

DN200 27 - ü

DN250 27 - ü

Operational pressure for all AB-QM valves is 4 bar. Closing pressure for all actuators is 16 bar.Additional actuator’s functionality available, for more info please contact your local Danfoss organization.

AB-QM(thread version)

1) factory setting of the valve is done at nominal setting range.

2) Regardless of the setting, the valve can modulate below 1% of set flow.

3) Δp = (P1–P3) min~max4) When set above 100%, minimum

starting pressure needed is higher, see figures in the ().

5) When set above 100%, it can be used as a flow limiter only.

According suitability and usage especially in not oxygen tight systems please mind the instructions given by the coolant producer.

Pc - pressure controller partCv - Control valve part

7SMT/SI VD.C6.Q6.02©Danfoss04/2013


Technical data (continuous) AB-QM(flangeversion)Nominal diameter DN 50 65 80 100

FlowrangeQnom(100%)

1)

l/h12.500 20.000 28.000 38.000

Qhigh4) 12.500 20.000 28.000 38.000

Settingrange2) % 40-100

Diff.pressure3),4) ∆pQnom

(∆pQhigh)kPa

30-400(30-400)

Pressurestage PN 16

Controlrange Acc.tostandardIEC534controlrangeishighasCvcharacteristicislinear.(1:1000)


Leakageacc.tostandardIEC534 max.0.05%ofQnomat500N

Forshutofffunction Acc.toISO5208classA-novisibleleakage

Flowmedium


WhenusedinplantTypeIIforDINEN14868appropriateprotectivemeasuresaretaken.TherequirementsofVDI2035,part1+2areobserved.


Stroke mm 10 15

Connectionflange PN16

actuator Danfossstandard


Valvebodies GreyironEN-GJL-250(GG25)

Membranes/Bellow EPDM

O-rings EPDM

Springs W.Nr.1.4568,W.Nr.1.4310

Cone(Pc) CuZn40Pb3-CW614N,W.Nr.1.4305

Seat(Pc) W.Nr.1.4305

Cone(Cv) CuZn40Pb3-CW614N

Seat(Cv) W.Nr.1.4305

Screw StainlessSteel(A2)

Flatgasket NBR

Nominal diameter DN 125 125 HF 150 150 HF 200 200 HF 250 250 HF

FlowrangeQnom(100%)1)

l/h90.000 110.000 145.000 190.000 190.000 250.000 280.000 370.000

Qhigh4) 100.000 120.000 160.000 229.000 228.000 300.000 336.000 444.000

Settingrange2) % 40-110 40-120

Diff.pressure3),4)

∆pQnom

(∆pQhigh)kPa

30-400(50-400)

60-400(80-400)

30-400(50-400)

60-400(80-400)

30-400(50-400)

60-400(80-400)

30-400(50-400)

60-400(80-400)

Pressurestage PN 16

Controlrange Acc.tostandardIEC534controlrangeishighasCvcharacteristicislinear.


Leakageacc.tostandardIEC534max.0.01%ofQnom

at650Nmax.0.01%ofQnomat1000N

Flowmedium


WhenusedinplantTypeIIforDINEN14868appropriateprotectivemeasuresaretaken.TherequirementsofVDI2035,part1+2areobserved.


Stroke mm 30 30 27 27

Connectionflange PN16

actuator Danfossstandard


Valvebodies GreyironEN-GJL-250(GG25)

Membranes/Bellow W.Nr.1.4571 EPDM

O-rings EPDM

Springs W.Nr.1.4401 W.Nr.1.4310

Cone(Pc) W.Nr.1.4404NC W.Nr.1.4021

Seat(Pc) W.Nr.1.4027

Cone(Cv) W.Nr.1.4404NC W.Nr.1.4021

Seat(Cv) W.Nr.1.4027

Screw W.Nr.1.1181

Flatgasket Graphitegasket Nonasbestos

1) factory setting of the valve is done at nominal setting range.

2) Regardless of the setting, the valve can modulate below 1% of set flow.

3) Δp = (P1–P3) min~max4) When set above 100%, minimum

starting pressure needed is higher, see figures in the ().

Pc - pressure controller partCv - Control valve part


1

5

6

7

8

2

3

4

1

2

3

45

6

7

8


Design

1 Spindle 2 Stuffingbox 3 Pointer 4 Controlvalve’scone 5 Membrane 6 Mainspring 7 Hollowcone(pressure

controller) 8 Vulcanizedseat(pressure

controller)

1. Differential pressure controller DPC Thedifferentialpressurecontrollermaintainsaconstantdifferentialpressureacrossthecontrolvalve.ThepressuredifferenceΔpCv(P2-P3)onthemembraneisbalancedwiththeforceofthespring.Wheneverthedifferentialpressureacrossthecontrolvalvechanges(duetoachangeinavailablepressure,ormovementofthecontrolvalve)thehollowconeisdisplacedtoanewpositionwhichbringsanewequilibriumandthereforekeepsthedifferentialpressureataconstantlevel.

2. Control valve Cv Thecontrolvalvehasalinearcharacteristic.ItfeaturesastrokelimitationfunctionthatallowsadjustmentoftheKvvalue.Thepercentagemarkedonthescaleequalsthepercentageof100%flowmarkedonthepointer.Changingthestrokelimitationisdonebyliftingtheblockingmechanismandturningthetopofthevalvetothedesiredposition,showedonthescaleasapercentage.Ablockingmechanismautomaticallypreventsunwantedchangingofthesetting.

Function:TheAB-QMvalveconsistsoftwoparts:1. Differentialpressure

controller2. Controlvalve

P1P3P2

P2-P3

P1-P3Δp = (P1-P3)ΔpCv = (P2-P3)

AB-QM DN 10-32


P1 P3


AB-QM DN 40, 50

AB-QM DN 50-100

Design (continuous)

1. Shutoffscrew 2. Mainspring 3. Membrane 4. DPcone 5. Seat 6. Valvebody 7. Controlvalvescone 8. Lockingscrew 9. Scale10. Stuffingbox11. Spindle

AB-QM DN 150

P1 P3

1. Valvebody 2. Valveseat 3. DPCcone 4. CVcone 5. Controllercasting 6. Rollingdiaphragm 7. Adjustingscrew 8. Bellowforpressurereliefon

DPCcone

AB-QM DN 125

P3P1


P3P1


Design (continuous)

1. Valvebody 2. Valveseat 3. DPCcone 4. CVcone 5. Controllercasting 6. Rollingdiaphragm 7. Adjustingscrew 8. Bellowforpressurereliefon

DPCcone

AB-QM DN 200, 250



Thread version Flange version

Sizing



Sizing (continuous)

Example 1: Variable flow system

Given:Coolrequirementperunit:1000WFlowtemperatureinthesystem:6°CReturntemperatureinthesystem:12°C

Required-control and balancing valves:AB-QMandactuatorstypeforBMSsystem.Solution:Flowinthesystem:Q(l/h)Q=0.86×1000/(12−6)=143l/h

Selected:AB-QMDN10mmwithQnom=275l/hpresettingon143/275=0.52=52%ofnominalopening.Actuators:AMV110NL-24VRemarks:requiredminimumdifferentialpressureacrosstheAB-QMDN10:16kPa.

Example 2: Constant flow system

Given:Coolrequirementperunit:4000WFlowtemperatureinthesystem:6°CReturntemperatureinthesystem:12°C

Required-automatic flow limiter:AB-QMandpresetting.

Solution: Flowinthesystem:Q(l/h)Q=0.86×4000/(12−6)=573l/h

Selected: AB-QMDN20mmwithQnom=900l/hpresettingon573/900=0.64=64%ofmaximumopening.

Remarks: requiredminimumdifferentialpressureacrosstheAB-QMDN20:16kPa.

Example 3: Sizing AB-QM according pipe dimension

Given:Flowinsystem1.4m3/h(1400l/h=0.38l/s),pipedimensionDN25mm

Required-automatic flow limiter:AB-QMandpresetting.

Solution: InthiscasewecanselectedAB-QMDN25mmwithQnom=1700l/h

Inthiscaseitwillberecommendedtocheckthemaximumvelocityinthepipe.Forthiswecalculatevelocityinthepipeforcondition:DN25mm–Di27.2mm

Dimensionandconditionacceptable,veloscitybelow1.0m/s.

PresetingonthevalveAB-QMDN25mm1400/1700=0.82=82%ofnominalopening.Remarks:requiredminimumdifferentialpressureacrosstheAB-QMDN25:20kPa.


Q

P2-P3

P2-P3

Blue

Red

P2-P3

Q=const. Q=const.

Pumpoptimization

Q

16kP a 400kPa

P1-P3

P1-P3

P1 P2 P3

(20kPa)

P1P3P2

P2-P3

P1-P3

DN40-100 DN10-32

Qnom=const


Pump optimising / Trouble shooting

* Δpmin = (P1-P3)min

** Δpcv.min = (P2-P3)min

Qnom=const

DN125-250

* Δpmin = (P1–P3)min

TheAB-QM(DN10-32)featurestestplugsthatallowmeasuringofthepressuredifferenceΔpcv(P2-P3)acrossthecontrolvalvewhileAB-QM(DN40-250)measuringisdonebetweenP1toP3.Ifthepressuredifferenceexceedstheminimalrequiredpressureisoperationalandtheflowlimitationisachieved.Themeasuringfunctioncanbeusedtoverifyifenoughpressuredifferenceisavailableandthusverifytheflow.

Itcanalsobeusedtooptimizethepumphead.Thepumpheadcanbedecreaseduntilnomorethantheminimalrequiredpressureisavailableonthemostcriticalvalve(intermsofhydronic).Thisoptimalpointistobefoundwhenproportionalitybetweenpumpheadandmeasureddifferentialpressureceasetoexist.VerifyingthepressurecanbedonebyusingforexampleDanfossPFMdevice(formoredetailspleaserefertoAB-QMTechNote).


10%100%

① ② ④

≠h h+2mm,DN10-20

h+4mm,DN25-32

③

>100%

h

Scale+90%


PresettingDN10-32

Thecalculatedflowcanbeadjustedeasilywithoutusingspecialtools.

Tochangethepresetting(factorysettingis100%)followthefourstepsbelow:

① Removetheblueprotectivecaporthemountedactuator

② Raisethegreypointer③ Turn(clockwisetodecrease)tothenew

presetting④ Pressgreypointerbackintolockposition.

Afterclickpresettingislocked.

Thepresettingscaleindicatesvaluesfrom100%flowto0%.Clockwiseturningwoulddecreasetheflowvaluewhilecounterclockwisewouldincreaseit.

IfthevalveisaDN15thenthenomflow=450l/h=100%presetting.Tosetaflowof270l/hyouhavetoset:270/450=60%.

Danfossrecomendsapresetting/flowfrom20%to100%.Factorypresettingis100%.


Note: DN 125 & 150: 1 turn = 5.0 %DN 200 & 250: 1 turn = 5.5 %

Note: 1 turn = 10%


Service DN 10-32Fortheserviceshutofffunction,itisrecommendedtoinstallthevalveinthesupplywaterpipe.

Valvesareequippedwithplasticshut-offmechanismthatistobeusedforisolatingfunctionupto1bardifferentialpressure.Whenclosingagainsthigherdifferentialpressurepleaseuseaccessory-shut-off&protectionpiece(003Z1230)orsetthevalueto0%.

Installing AB-QMvalveismono-directionalmeaningthatthevalveoperateswhenarrowonthevalvebodyisalignedwithflowdirection.Whenthisruleisdisobeyedthevalveactslikevariableorificethatcausewaterhammeratsuddenclosingwhenavailablepressurehasincreasedorvalvehavebeensettolowervalue.

Incasewhensystemconditionallowsbackflowsitisstronglyrecommendedtousebackflowpreventerinordertoavoidpossiblewaterhammerthatcandamagethevalveaswellasotherelementsinthesystem.

DN 40-100Fortheserviceshutofffunction,thevalvecanbeinstalledineithersupplyorreturnpipe.Valvesareequippedwithmanualshut-offforisolatingfunctionupto16bar.

+

–

Presetting (continuous)

DN125-250

DN40-100

Setting 60%

+

–

Max 25Nm



1.Thepressureindependentbalancingandcontrolvalveshouldbecomprisedofalinearcontrolvalveandanintegratedmembranebasedpressurecontroller.

2.ThepressureindependentbalancingandcontrolvalveshouldbeavailableintherangefromDN10-250.

3.Thevalvecouldbeusedasanautomaticflowlimiter.4.Thevalveshouldhaveamechanism(flowsetting)toadjusttheflowsteplessfrom100to0%ofthe

nominalflow.5.Minimumpossibleflowpre-settingshouldbe30l/h.6.Attheminimumsettingmodulationbelow1%shouldbepossible.7.Shutoffservicefunctionshouldbepossiblewithsettingmechanism.8.TheadjustmentshouldbeperformedwithoutatoolfordimensionsuptoDN32orastandardtool

forvalvesbiggerthanDN32.9.Thesetting,whichcanbelocked,shouldbevisiblefromthetopforvalvesDN32andfromtheside

forDN100.10.andre-numbertherest.11.Thevalvesshouldhaveashut-offfunction,separatedfromthesettingmechanism,forvalvesDN40-250.12.Theleakagerateshouldbe:Novisibleleakageatforceofthethermalactuator(90N)forvalves

uptoDN32.Leakageof0.05%oftheQnomforvalvesuptoDN100andupDN250at500Nand1.000Nrespectively.Allactuatorsshouldbeabletocloseagainst16barofdifferentialpressure.

13.Theauthorityofthepressureindependentcontrolvalveshouldbe1atallsettings(controlvalvecharacteristicisnotchanged).

14.Controlvalveshouldhavelinearflowcharacteristicatallsettings.(Supplier of the valve should provide lab test results1)).

15.Controlratioofthepressureindependentbalancingandcontrolvalveshouldbehigherthan1:100016.Minimumstartingdifferentialpressureforflowlimitationshouldbe16kPaforvalvesuptoDN20,

20kPavalvesuptoDN32and30kPaforvalvesuptoDN250.(Supplierofthevalveshouldprovidelabtestresults1)).Nominalpressurerating16bar.

17.TestplugforpumpoptimizationandflowverificationshouldbeavailableforDN10-250.18.ValvesizesfromDN10-DN250shouldbeavailablefromonesupplier.

Nominaldiameter: ________Connection: ________Adjustmentrangefrom-to ________ m3/hProducedby: DanfossType: AB-QMOrderingno.: 003Z____

1) Since there is no standard for testing procedure, Danfoss recommends verification by independent lab to compare control and flow limitation function of different PIBCVs at the same basis.

Tender text



TypeL1 L2 L3 L4 L5 L6 H1 H2 H3 H4 H5 b Valveweight

mm ISO228/1 (kg)

DN10 53 36 79 92 104 109 73 20 100 104 138 G½ 0.38

DN15 65 45 79 98 110 116 75 25 102 108 141 G¾ 0.48

DN20 82 56 79 107 120 125 77 33 105 112 143 G1 0.65

DN25 104 71 79 124 142 142 88 42 117 124 155 G1¼ 1.45

DN32 130 90 79 142 154 160 102 50 128 136 166 G1½ 2.21

Dimensions

TypeL1 H1 H2 H3 b Weight

mm ISO228/1 kg

DN40 110 170 174 280 G2 6.9

DN50 130 170 174 280 G2½ 7.8

AB-QM DN 40, 50

H1

L2

b

H2

AME 435 QM + AB-QM

H3

TWA-Z + AB-QM

H3

L4

AMV (E) 110 NL + AB-QMAMI 140 + AB-QM

H5

L6

H4

ABNM + AB-QM

L5

L2

L3

L2

H2

H1

b

L1

AB-QM DN 10-32



Dimensions (continuous)

TypeL1 H1 H2 H3 a

(EN1092-2)Weight(kg)mm

DN50 230 170 174 280 165 14.2

DN65 290 220 172 330 185 38.0

DN80 310 225 177 335 200 45.0

DN100 350 240 187 350 220 57.0

H2

L1

a

H1

AB-QM DN 50-100

H3

AME 435 QM + AB-QM




H3

AME 55 QM + AB-QM DN 125

H3

AME 55 QM + AB-QM DN 150

TypeL1 H1 H2 H3 a Weight

mm (EN1092-2) (kg)

DN125 400 272 518 507 250 85.3

DN150 480 308 465 518 285 138

L1

H2

H1

aAB-QM DN 125 AB-QM DN 150

H2

H1

L1

a

20 VD.C6.Q6.02 Produced by Danfoss A/S © 04/2013


H3

AME 85 QM + AB-QM DN 200, 250

a

L1

H2

H1

AB-QM DN 200, 250

TypeL1 H1 H2 H3 a Weight

mm (EN1092-2) (kg)

DN200 600 434 483 618 340 219

DN250 730 430 533 708 405 342


Data heet Pressur p ontr alve A- N 125 · Diff. pressure3),4) ∆pQnom (∆pQhigh) kPa 16-400...

Documents

Transcript of Data heet Pressur p ontr alve A- N 125 · Diff. pressure3),4) ∆pQnom (∆pQhigh) kPa 16-400...