Pvg 100 Function; Pvg 100 With Open Center Pvpf - Danfoss PVG 100 Technical Information

Technical Information

PVG 100 function

PVG 100 with open center PVPF

10
PVG 100 Proportional Valve Group
When the pump is started and the main spools in the individual basic modules are in the neutral position,
oil flows from the pump, through connection P, across the pressure matching spool (11) to tank. The oil
flow led across the pressure matching spool determines the pump pressure (stand-by pressure).
When one or more of the main spools are actuated, the highest load pressure is fed through the shuttle
valve circuit (4, 7) to the spring chamber (10) behind the pressure matching spool, and completely or
partially closes the connection to tank. Pump pressure is applied to the opposite side of the pressure
matching spool. The pressure relief valve (1) will open should the load pressure exceed the set value,
diverting pump flow back to tank.
Optional PVPC with check valve option may be used in systems where it is necessary to operate the PVG
100 valve by means of the electrical remote control without pump flow.
For additional information about PVPC refer to the publication 520L0344.
Optional electrically actuated pilot shut off valve PVPP provides additional functional system safety by
removing pilot oil from the electrical actuation or hydraulic actuation system, disabling main spool
actuation. When the PVPP is used with the PVBZ P.O. check valve system it is possible to disable actuation
during mechanical actuation
520L0720 • Rev EB • Jan 2014