Key benefits l Ease of integration - valve size matches pipe size, resulting in reduced installation time and installation costs l Flexible design - ports can be configured to suit installation l Low pressure drop - compared to other valve types l Small physical size l Hand wheel allows manual adjustment of valve (optional on pneumatic valve) - simplified set up and maintenance Typical applications For engines, turbines, gearboxes and heat exchangers: l Charge air cooling l Secondary cooling systems l Fuel and lube oil preheating l Co-generation l Engine jacket water For refineries, chemical plants and oil reproduction: l Waste heat boilers l Product coolers l Product heaters l Product condensers Electric GG valve Pneumatic GG valve Now even more compact G valve compared with a typical equivalent competitor’s specification. Model G, Version G and Accessories Datasheet_GG_Temp_Control_Valve_Nov16_rev14 www.amot.com 3-Way Temperature Control Valve
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3-Way Temperature Control Valve - AMOT page 5 3-Way Temperature Control Valve - Model G, Version G Electro-Pneumatic System The electro-pneumatic valve system combines both electric
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Key benefits lEase of integration - valve size matches pipe size, resulting in reduced installation time and installation costs
l Flexibledesign-portscanbeconfigured to suit installation
lLow pressure drop - compared to other valve types
lSmall physical size
lHand wheel allows manual adjustment of valve (optionalonpneumaticvalve)-simplifiedset up and maintenance
Typical applications For engines, turbines, gearboxes and heat exchangers:
lCharge air cooling
lSecondary cooling systems
lFuel and lube oil preheating
lCo-generation
lEngine jacket water
For refineries, chemical plants and oil reproduction:
lWaste heat boilers
lProduct coolers
lProduct heaters
lProduct condensers
Electric GG valve
Pneumatic GG valve
Now even more
compact
G valve compared with a typical equivalent competitor’sspecification.
3-Way Temperature Control Valve - Model G, Version G
AMOT G valves are 3-way control valves consisting of a heavy duty rotary valve and either a quarter turn electric or pneumatic actuator.Thevalvesprovideahighdegreeof accuracy and repeatability for accurate temperature control and are equally accurate inmixingordivertingserviceoverawideflowrange.
The heavy duty rotor design provides tight temperature control without high maintenance requirements.Thesystemisavailableinthreestandardcontrolconfigurations:electric;pneumatic;andelectro-pneumatic,offeringflexibilityformostrequirements.Designed
for high vibration service, the AMOT G valves arequalifiedtoLloyd’sMarineRequirementsforshipboardservice.Valvescanbedirectlymountedto reciprocating machinery, such as diesel engines,withoutvibrationisolation.Theheavyduty actuators are specially reinforced to provide vibrationresistance.
The standard valves are suitable for a variety offluidssuchaswater,water/glycol,seawater,lubricatingandhydraulicoils.Optionalbodymaterials are available for services involving syntheticorfireresistantoils,deionizedwaterandammoniaorfreoninoil.
Applications
Overview
Charge Air Temperature ControlThe intercooler is used to cool high temperature turbochargerair.
InthisapplicationtheGValveregulatestheflowof cooling water through an intercooler, increasing efficiency,enhancingperformanceandhelpingtomeettoday’senvironmentalrequirements.
Diverting ApplicationsJacket water cooling in diverting applications regulates the outlet coolant water temperature fromadieselorgasengine.Thevalveeithersends water to a cooler or bypass loop, accurately maintainingthetemperature.
The temperature is normally measured at the outletfromtheheatsource.
Mixing ApplicationsLubricating oil temperature control is normally configuredinamixingapplicationcontrollingthereturntemperaturetotheheatload.Thetemperature is normally measured as close as possibletothesumpreturn.
3-Way Temperature Control Valve - Model G, Version G
Electric System
The electric actuator is a rugged, compact and lightweight quarter turn actuator having enclosure protectiontoIP65.
The actuator is powered by an electric motor drivingaworm-typegearbox.Thewormgearboxpreventsreversedriveduetofluidforces.Itisfittedwithmanualoverrideasstandard,enablingvalveoperationwithoutpower.
Athermalcutoutisfittedpreventingoverheating.Limit switches at each end of stroke disconnect motorpowerwhenendstrokeisreached.Thesecanalsobeusedforremoteindication.
Seepage15formoreinformationontheelectricactuator.
GG ValvePIDController8071/2D,IP67enclosure
For the electric valve, the actuator of the G valve assembly uses an electric motor which rotates in either direction in response to the ON-OFF signalsreceived.Themotordrivesagearboxconnected to the rotor shaft and turns the valve rotor clockwise or counter-clockwise, a maximum of90degrees.Attheendoftravel,limitswitchesare incorporated to isolate the electrical supply to the motor when the valve rotor has reached eitherendoftherotation.Afeedbackhallsensoris standard and provides position indication to the controlsystem.
Electric Valve
The electric valve system incorporates the use of an electrically actuated three-way control valve withanelectroniccontroller.The8071DPIDController can be either panel or wall mounted (seepage18formoreinformation).Thesystemis completed with a temperature sensor type 8060 (seepage18fordetails).
The electric G Valve system is simple to install with standard four core cable, and provides more accurate measurement and control than typical pneumaticallyoperatedsystems.
Temperature Probe 8060
System Types
Electric GG Valve
page5Datasheet_GG_Temp_Control_Valve_Nov16_rev14
3-Way Temperature Control Valve - Model G, Version G
Electro-Pneumatic System The electro-pneumatic valve system combines both electric and pneumatic technology, consisting of a pneumatically actuated three-way control valve with an electro-pneumatic converter, type 8064A.Seepage19formoredetails.
The probe sends a resistance signal to the electronic controller, which in turn sends a 4 to 20mAsignaltoanI/Pconverterthatconvertsthistoapneumaticsignal.
The electro-pneumatic system combines the features and functionality of the AMOT electronic controlsystemwiththefail-safeactionbenefitsofapneumaticallyactuatedvalve.
GG ValveElectro-Pneumatic Converter
8064A
Temperature Controller 8071D
Temperature Probe 8060
Pneumatic Valve The pneumatic valve uses a spring return pneumatic actuator and positioner to control the rotation of the valve in response to an input signal from a pneumatic or electro-pneumatic control system.Thepneumaticcontrolsystemsendsapneumaticsignalrangingfrom0.21to1.03bar(3to15psi)totheactuatortocorrectlypositionthevalveatthedesiredtemperaturesetting.Thepneumatic control system usually consists of a P+I pneumatic controller, sensor and the necessary air supplyconditioningequipment(regulators,filtersandwatertraps).
Pneumatic System The pneumatic valve system incorporates a pneumatically actuated three-way control valve with controller and integral temperature sensor, theSG80,whichcanbepanelorwallmounted.FormoreinformationontheSG80,seepage20.The pneumatic G valve system is ideal when there is a lack of electricity or when a fail-safe system is needed.
The pneumatic actuator is a rugged, quarter turn, double piston actuator operating on a scotch yoke principle.
Theactuatorisfittedwithspringreturnasstandardallowingfail-safeconfigurationifnecessary.Itisalsofittedwithavalvepositionerenablingaccurateandrepeatablemovement.See page 16 for more information on the pneumaticactuator.
l Low pressure drop - enables savings on either valve or pump size
l High accuracy providing better temperature control
Valve Body
page7Datasheet_GG_Temp_Control_Valve_Nov16_rev14
3-Way Temperature Control Valve - Model G, Version G
The unique construction of the AMOT G valve provides total flexibilitybyallowingyoutoselectthevalveportpositionsmostideallysuitedtomeetyourapplicationrequirements.Therearetwomaintypesofmodeofoperation:90°rotorthatallowseitherports1or3tobeselectedasthecommonport;and180°rotorthatrequiresport2tobethecommonport.Arrowindicates valve movement with increasing temperature or mA, asviewedfromabove(seediagram).Forelectricallyactuatedvalves, on loss of signal the actuator is set up by default to stopinitscurrentposition.
Electric actuator (switched live input)
Electric actuator direct acting(4-20mA input)
Electric actuator reverse acting(20-4mA input)
Cold position Hot position 4mA (cold) 20mA (hot) 20mA (cold) 4mA (hot)
3-Way Temperature Control Valve - Model G, Version G
The unique construction of the AMOT G valve providestotalflexibilitybyallowingyoutoselectthe valve port positions most ideally suited to meetyourapplicationrequirements.Therearetwomaintypesofmodeofoperation:90°rotorthatallows either ports 1 or 3 to be selected as the commonport;and180°rotorthatrequiresport2tobethecommonport.Arrowindicatesvalvemovement with increasing temperature or mA, as viewedfromabove(seediagram).
Pneumatic actuator direct acting Pneumatic actuator reverse acting
3 PSI (cold) 15 PSI (hot) No signal 15 PSI (cold) 3 PSI (hot) No signal
23
ed
oM
12
ed
oM
21 e
do
M3
2 e
do
M31
ed
oM
13
ed
oM
3
2
1
Modes of Operation - Pneumatically Actuated
page9Datasheet_GG_Temp_Control_Valve_Nov16_rev14
3-Way Temperature Control Valve - Model G, Version G
s s s s s sss s
80(3) 50(2) 7 14 20 26 33 39 46 52
100(4) 80(3) 19 35 51 67 83 99 115 131
150(6) 100(4) 29 54 79 104 129 154 179 204
200(8) 150(6) 66 122 178 235 291 347 403 459
200(8) 118 218 318 418 517 617 717 817
250(10)
300(12) 250(10)
350(14) 300(12)
400(16) 350(14)
450(18) 400(16)
Valve Sizing (Metric units)
Recommended maximum pressure drop
14 3 2
1 – Water
2 – ISO VG32
3 – ISO VG46
4 – ISO VG68
Valve selection curves for valves with90orotor.Forvalveswith180o rotormultiplypressuredropsby2.
AMOT type G valves are designed to produce minimal pressure drop.Thenormalrecommendationinsizingthevalvesistoselectapressuredropbetween0.01to0.3bar(0.15and 4.5psi).
Tousethegraphitisadvisedtousethefollowingmethod: 1. Startwithapressuredropof0.05baron theverticalaxis,readacrosstothecurve. 2. Followthislinedowntotheflowratesbelow untilyoufindthevalueclosesttoyourflowrate. 3. Followthelineacrosstothelefttodetermine suitablevalvesize. For stable control the valve should be selected so as to provide apressuredropwithfullflowofbetween0.01and0.3bar (0.15and4.5psi).
Standard High flow flow
Siz
e D
N (
inch
es)
Valve Flowrate Selection (Flowrate m3/hr)
CurrentlyonlyavailableinGEF/GPDversions. See Datasheet GEF_GPD_Temp_Control_Valve for data
AMOT type G valves are designed to produce minimal pressure drop.Thenormalrecommendationinsizingthevalvesistoselect apressuredropbetween0.15and4.5psi(0.01to0.3bar).
Tousethegraphitisadvisedtousethefollowingmethod: 1. Startwithapressuredropof 0.5psi on the vertical axis, readacrosstothecurve. 2. Followthislinedowntotheflowratesbelowuntilyoufindthevalueclosesttoyourflowrate. 3. Followthelineacrosstothelefttodeterminesuitable valvesize. For stable control the valve should be selected so as to provide a pressuredropwithfullflowofbetween0.15and4.5psi(0.01 and0.3bar).
CurrentlyonlyavailableinGEF/GPDversions. See Datasheet GEF_GPD_Temp_Control_Valve for data
Valve selection curves for valves with90orotor.Forvalveswith180o rotormultiplypressuredropsby2.
Viscosity:Findtheviscosityofthefluidinwhichthevalveistooperate.Theviscosityisnormallyexpressedincentistokes.WhereISOoilisused,the grade number is also the viscosity eg ISO VG46is46centistokesat40°C(104°F).
Viscositycorrection:Byusingthecorrectiongraphbelow,theflowcoefficientcorrectionfactorcanbeestablished.Thecorrectionfigureobtainedfromthe graph should then be multiplied by the original flowcoefficientwhichcanthenbeusedinthestandardvalvesizingformulae.
Engine oils
Oil cSt
SAE5W 6.8
SAE 10W 32
SAE 20 46
SAE 20W 68
SAE 30 100
SAE 40 150
SAE50 220
Gear oils
Oil cSt
SAE75W 22
SAE 80W 46
SAE85W 100
SAE90 150
SAE 140 460
SAE Oil Viscosities
Some approximate viscosities (cSt) of SAE oils at 40°C (104°F) are shown below, based on leading oilmanufacturers’publisheddata.
3-Way Temperature Control Valve - Model G, Version G
The G valve is designed to produce minimalpressuredrop.Thenormalrecommendation when determining the size of an AMOT G valve is a pressuredropbetween0.01and0.3bar(0.15and4.5psi).Note: Kv andCvvaluesareapplicableto90°rotorversionsonly.
Valve Flowrate
Size DN (in)
Standard flow
80 (3)
100 (4)
150 (6)
200 (8)
250 (10)
300 (12)
350 (14)
400 (16)
450 (18)
High flow
50 (2)
80 (3)
100 (4)
150 (6)
200 (8)
250 (10)
300 (12)
350 (14)
400 (16)
Kv 82 207 323 729 1296
Cv 96 242 378 851 1513
SeethetablebelowforexamplesofKvandCv:
Valve SizingValve Sizing Calculations
Pressure Drop
TheAMOTGValveisnotatightshutoffvalve.When used in a reasonably balanced pressure system there will be some small amounts of leakagebetweenports.Theactualamountofleakage will vary with the pressure difference
Valve Bypass Flowrates betweentheseports.ConsultAMOTforfurtherinformation if the application is sensitive to leakage rates or if high pressure differences are likelytooccur.
CurrentlyonlyavailableinGEF/GPDversions. See Datasheet GEF_GPD_Temp_Control_Valve for data
There are two other ways that this formula can be used to findtheflowinUSgallons/minuteorpressuredropofa valveinPSI:
ThebasicformulatodeterminetheKvofavalveis:
DpSGKv = Q
Q = Flow (m3/h)
Dp = Pressure drop (bar)
SG=Specificgravityoffluid
Kv=Valveflowcoefficient
ThebasicformulatodeterminetheCvofavalveis:
DpSGCv = Q
Q=Flow(USgallons/min)
Dp = Pressure drop (psi)
SG=Specificgravityoffluid
Cv=Valveflowcoefficient
There are two other ways that this formula can be used to findtheflowinm3/horpressuredropofavalveinbar:
3-Way Temperature Control Valve - Model G, Version G
TheAMOTactuator/valvepositionerisconfiguredto accept an industry standard 4-20mA position demand input signal, and uses this to operate internalsolidstateswitchingtodrivethemotor. The microprocessor based unit uses the signal from the contactless position sensor to accurately position the actuator, taking into account motor responsetimeandactuatorovershoot. The positioner is split into two parts, housed in the terminalbox.Thereisapowermodule,inwhichall high voltage circuits are fully encapsulated to withstandhighvibration,andacontrolboard.Thisdesignallowsforeasymaintenance.
Userconfigurationallows:
lThe input can be selected from 4-20mA, 0-20mA,0-5V,0-10Vand2-10Vbyswitches. l 4-20mA output, which shows actual valve position,canbeconfiguredtoretransmitthe demandinputsignal.
lAswitchallowsforeasyconfigurationof which end of stroke corresponds with a 4mAdemand.
lThe action on sensor fail can be selected from moving to either the 4mA or the 20mA positions,butisfactorysettonotmoving.
lThe deadband can be increased to aid performancewithnoisyinputsignals.
lWhen necessary, such as after maintenance, the actuator can be recalibrated at the touch ofabutton.
Electronic Positioner
Overview of Pneumatic Actuation
Key features and benefitslA rugged quarter turn, double piston, rack
and pinion pneumatic actuator with spring returnandvalvepositionerasstandard.
There are three LEDs on the terminal box on the side of the actuator, providing clear visual indication ofactuatorstatus.Twoalarmoutputsallowforremotefaultmonitoring.
Electronic Positioner
page17Datasheet_GG_Temp_Control_Valve_Nov16_rev14
3-Way Temperature Control Valve - Model G, Version G
06GG S D B S 32 EA B CA -AA Code DescriptionNominal Bore Size Comments
02GG 2Inch(DN50) High Flow Only03GG 3 Inch (DN80)04GG 4 Inch (DN100)05GG 5Inch(DN125) Standard Flow only06GG 6Inch(DN150)08GG 8 Inch (DN200)
Valve Flow Type (RefertoflowcoefficienttableforCv/Kvdata)S Standard Flow ValveH High Flow Valve
DFlange Class Flange Standard Flat / Raised Face
A PN6 EN1092 RaisedB PN10 EN1092 RaisedC PN16 EN1092 RaisedF 125lb(FlatFace) ASME Flat J 150lb ASME RaisedL 10K JIS FlatM 5K JIS Flat
Rotor TypeS StandardRotor
Cold Process Hot Process12 Port 1 Port 223 Port 2 Port 331 Port 3 Port 121 Port 2 Port 132 Port 3 Port 213 Port 1 Port 3
Power Supply Air Connection Manual overrideEA 100-120Vac50/60Hz -EB 200-240Vac50/60Hz -P1 - G1/4(1/4"BSPP)P2 - 1/4"NPTP3 - G1/4(1/4"BSPP)P4 - 1/4"NPT
Input SignalAB 4-20mAC 20-4mA1 3-15psi2 15-3psi
AA None
CAEA
Pne 00
-AA-***
Customer Special Options
Feedback Signal
None
Actuator Feedback Signal
Customer Special Code AssignedStandard Product
20-4mAPositionRetransmit
Not applicable for Actuator Control Input Signal codes B or C
Not Fitted
Fitted
Elec
Pneu
Valve Actuation Type Electric Actuator Power Supply Pneumatic Actuator Air Connections & Manual override
Fitted as Standard
Act
uat
or S
elec
tion
Example Code
4-20mAPositionRetransmit
On Increasing Temperature
Comments
Elec
Pne
Actuator Control Input Signal
Elec
tric
Relays,SwitchedLiveSupply
Val
ve B
ody
Sel
ecti
on
Rotor Type
Valve Flange Connection Standard and Class
Valve Body
Valve Size & Model
Valve Mode of Operation
Ductile Iron
Clockwise
Anticlockwise
Valve Flow Type
Body Material
Rotor Position Rotation Starting From Cold Position
How to OrderUsethetablebelowtoselecttheuniquespecificationofyourGvalve:
3-Way Temperature Control Valve - Model G, Version G
PID Valve Controllers 8071/8072D and Solid State Relays 47581L001
Key features and benefitslFully programmable PID-based control -allowseasysystemconfiguration
lUniversalinputs;RTD’s,thermocouple,orstandard 4-20mA signal gives maximum sys-temdesignflexibility
lCan be operated in manual mode - easy maintenance and set up
Accessories
Solid State Relay
47581L001
PID Controller 8072D
PID Controller 8071D
For further information and how to order these products see Datasheet_8071_2_D_47851.pdf
3-Wire PT100 Temperature Sensor - 8060Key features and benefitsl3wireRTDs-accuratetemperature
measurement
l Excellent long term stability
lGood linearity
lCan use standard 3-core cableTemperature Sensor
8060
For further information and how to order this product see Datasheet_8060_temp_sensor.pdf
page19Datasheet_GG_Temp_Control_Valve_Nov16_rev14
3-Way Temperature Control Valve - Model G, Version G
Solid State Relay Module - 8073C
Accessories
Relay Module
8073C
The8073CrelaymoduleincorporatestwosolidstaterelayswithterminationsinanIP67enclosure.The8073Cisdesignedtobeusedwiththe8071Dcontroller logic outputs to drive voltages for the electricallyactuatedGvalve.Featuresinclude:zero-crossing switching, relay and logic level inputs and IP67enclosure.
Interface with 8071D controller Interface with AC input signals
Typical Applications
Logic outputs
110/240 Vac
AC inputs
110/240 Vac
Key features and benefitslIP67enclosure
l AlternativetousingtwoSSRstype47581L001
lGood linearity
lCan use standard 3-core cable
For further information and how to order this product see Datasheet_8073C_SSR.pdf
Electro-Pneumatic Converter - 8064A
Electro-Pneumatic Converter - 8064A
Key features and benefitsl High vibration resistance - Lloyds 4G
lSuitable for longer pipe runs
lFully adjustable for optimised system operation
lATEXhazardousareacertification For further information and how to order this product see Datasheet_8064A_C_elect_pneu_converter.pdf