The PVG 100 Inlet LS relief valve (1) is specifically designed to ensure a constant margin pressure across
the main spool, providing demanded regulated flow during maximum load pressure conditions. This
relief adjustment is critical when there are two or more functions being operated together. An incorrectly
adjusted Inlet relief could result in a vast reduction in regulated flow from the adjacent functions that
operate at a lower load pressure. To accurately adjust the inlet LS relief, the pump standby pressure must
be known in addition to the maximum operating load pressure.
Example
Pressure comp pressure level
172 bar [2500 psi]
LS standby pressure requirement that delivers the desired flow
-20 bar [-290 psi]
Maximum load pressure requirement
152 bar [2210 psi]
Inlet relief pressure setting
152 bar [2210 psi]
An order form for Danfoss PVG 100 hydraulic valve is shown on the next page. The form can be obtained
from the Danfoss Sales Organization.
Both the module selection chart on the previous pages and the order form are divided into fields 0, 1-10,
11, 12, 13, a, b, and c.
Each module has its own field:
0:
Pump side module PVP
•
Plug for external pilot oil supply PVPC
•
Electrical unloading valve PVPE
•
Electrical pilot shut off valve PVPE
1-10: Basic valves PVB
13:
Main spool PVBS
a:
Mechanical actuator PVM
c:
Cover for mechanical actuation PVMD
Cover for hydraulic actuation PVH
Electrical actuators PVE
b:
Shock and suction valve PVLP
Suction valve PVLA
11:
End plate PVSI
Tank module PVT
Interface module PVTI
12:
Assembly kit PVAS
Please state
•
Code numbers of all modules required
•
Required setting (P) for pump side module
Standard and option assembly
The valve group is assembled the way the module selection chart shows if the code number for PVM is
written in field 'a', and the code number for PVMD, PVE or PVH in field 'c'.
Technical Information
PVG 100 Proportional Valve Group
PVG 100 order specification
©
Danfoss | May 2018
520L0720 | BC00000039en-US0502 | 69
