Pvpc With Check Valve - Danfoss PVG 16 Technical Information

Technical Information
PVG 16 Proportional Valve Group
PVP Inlet Module Accessories

PVPC with Check Valve

© Danfoss | December 2018
The PVPC external pilot pressure adapter with check valve is an accessory in the M-port available for PVP
inlet modules with integrated pilot pressure reduction valve (PPRV).
The PVPC with check valve enables an external pilot pressure supply through the PVPC adapter and the
PPRV, while also allowing the main pump to supply the PPRV through the P-gallery as a standard Open
Center PVP with PPRV.
PVPC with Check Valve
PVP with PVPC with check valve schematic
LS M
T
P
One application example for the PVPC with check valve is where it is a wanted feature to operate the
valve group by means of the PVE electrical actuators without pump flow.
When the external solenoid valve is opened, oil from the pressure side of the cylinder is fed via the PVPC
through the PPRV to act as the pilot supply for the PVE electrical actuators. This means that it is possible
to lower a load by means of the PVE electrical actuators without starting the pump.
The built-in check valve prevents the oil from flowing via the pressure adjustment spool to tank. With the
pump functioning normally the external solenoid valve is closed to ensure that the load is not lowered
due to the pilot supply oil flow requirement of approximately 1 l/min [0.25 US gal/min].
With a Closed Center PVP the external pilot oil supply can be connected to the pressure gauge
connection without the use of a PVPC plug.
Part numbers for Open Center/Closed Center PVPM
Part number
Thread
P
p
157B5600
G1/2"
157B5700
1/2-20 UNF
BC00000211en-000901 | 37