Pvpc Without Check Valve - Danfoss PVG-EX 32 Technical Information

Technical Information
PVG-EX 32 Proportional Valve Group
PVP Inlet Module Accessories

PVPC without Check Valve

36 | © Danfoss | June 2019
The PVPC external pilot pressure adapter without check valve is an accessory in the M-port available for
PVP inlet modules with integrated pilot pressure reduction valve (PPRV).
The PVPC without check valve cuts off the integrated PPRV to the PVE or PVH/PVHC in the valve group
and enables an external pilot pressure supply through the PVPC adapter.
PVPC without Check Valve
PVP with PVPC without check valve schematic
LS M
T
P
One application example for the PVPC without check valve is where it is a wanted feature to supply the
valve group with oil from a manually operated emergency pump without directing oil flow to the PPRV.
When the main pump is running in its normal operation mode, the oil is directed through the PVPC
adapter via the PPRV to the PVE electrical actuators.
When the main pump flow fails, the external shuttle valve ensures that the oil flow from the manually
operated emergency pump is used to pilot open the over-center valve and lower the load. The load is
only possible to lower when using the mechanical operating lever of the PVG work sections.
Part numbers for Open Center/Closed Center PVPM
Part number
Thread
P
p
157B5400
G1/2"
158X1000
1/2-20 UNF
BC290860493426en-000103