网盘力士乐材料.pdf
RE92012/04.00
RE92012/04.00
replaces:11.94
VariableDisplacementPumpA4VTG
fordrumdrivesonmobileconcretemixers
forclosedcircuits
Sizes56...90
Series3
Nominalpressure400bar
Peakpressure450bar
A4VTG...HW
IndexFeatures
Features1–variabledisplacementaxialpistonpumpofswashplatedesign
OrderingCode2...3forhydrostaticclosedcircuittransmissions
TechnicalData4–flowisproportionaltodrivespeedanddisplacementandis
PressureReliefValve5infinitelyvariable
Filtration5–outputflowincreaseswithswivelanglefrom0toitsum
value
HW-HydraulicControl,MechanicalServo6
–swivellingthepumpovercentresmoothlychangesthedirection
EP-ElectricalControl,withProportionalSolenoid6offlow
UnitDimensions,Size717–thepumpisequippedwithtwopressurereliefvalvesonthe
UnitDimensions,Size908highpressureportstoprotectthehydrostatictransmission
DimensionsforThroughDrives9(pumpandmotor)fromoverloads
PermissibleInputa