Basic Documentation

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Magnetic Valves
MXG461BSeriesModulating
ControlValve.
Specications
Electrical
Low-voltageUseOnly ................................................... Class2(SELV,PELV)
24 Vac
 OperatingVoltage ......................................................... 24Vac+20/-15%
 Frequency ............................................................................. 45to65Hz
 TypicalPowerConsumption ....................................................SeeTable1
 Standby ............................................................<1W(ValveFullyClosed)
 NominalApparentPower .................................................SeeSizingTable
 SuitableFuse.................................................................Slow,SeeTable1
24 Vdc
 OperatingVoltage ................................................................20to30Vdc
Functional Data of Actuator
Input
 PositioningSignalY .....................................0/2to10Vdcor0/4to20mA
  Impedance
   0/2to10Vdc ................................................................. 100kΩ//5nF
   0/4to20mA .................................................................240Ω//5nF
 ForcedControl
  Impedance .................................................................................22kΩ
  ClosingtheValve(ZconnectedtoG0) ........................ <1Vac;<0.8Vdc
  OpeningtheValve(ZconnectedtoG0) ........................ >6Vac;>5Vdc
  NoFunction(Znotwired) ............................PositioningSignalYActive
Output
 PositionFeedbackSignalVoltage ........................................0/2to10Vdc;
LoadResistance>500Ω
   Current.......................................................................0/4to20mA;
LoadResistance<500Ω
 StrokeMeasurement .................................................................Inductive
 Nonlinearity ................................................................. ±3%ofEndValue
Functional Data of Valve
 NominalPressure ......................................................... ANSI125(PN16)
 OperatingPressurep
e
max
1
............................................. 232psi(16bar)
 PressureDifferentialDp
v
max ..........................................SeeSizingTable.
 Leakage ........................................................A →ABMaximum0.05%Cv
B→ABDependsonApplicationData
(0.2%Cv)
 WaterTemperature
2
.........................................-4to248°F(-20to120°C)
 ValveCharacteristic
3
...................... EqualPercentageorLinear,Optimized
NeartheClosingPoint
Resolution ......................................................................................1:1000
 TypeofOperation ................................................................. Modulating
Position De-energized .........................................................A →ABClosed
Orientation ................................................................UprighttoHorizontal
Positioning Time ......................................................................<2seconds
Materials
 Body ...................................................................................... RedBronze
 CoverFlange .......................................................................... RedBronze
 Seat/InnerValve ................................................................ StainlessSteel
Packing
 NormalDuty ..................................................................... EPDM(O-ring)
Pipe Connections .........................................ScrewedFittings,Bronze/Brass
Electrical Connections
 CableEntries ...............................................3xM20x1.5orPG13.5/G1/2
 ConnectionTerminals ..........................ScrewTerminalsfor12AWGWires
 Min.Cross-sectionalArea
4
..................................................... 18ga.AWG
Max.CableLength .................................................. RefertoSizingTable.
Ambient Conditions
 Temperature
  OperationandStorage ....................................23to113°F(-5to45°C)
  Transport .....................................................-13to158°F(-25to70°C)
 Humidity .............................................................................. 5to95%RH
Agency Approvals .............................................................. IP31toIEC529
ConformstoCERequirements,UL873,
CertiedtoCanadianStandardC22.2No.24,C-TickN-474,
PED97/23/EC:Pressure-carryingParts,
Par.1,Section.2.1.4/Par.3,Section3,FluidGroup2
Flow Characteristics ....................................... EqualPercentageorLinear
Notes:
1
Testedat1.5xPN(24bar),similartoDIN3230-3
2
Formediumtemperatures<32°F(0°C),theZ366stemheatingelement
isrequired.
3
CanbeselectedviaDIPswitch.
4
Incaseofstrongvibrations,usehigh-exstrandedwires.