10
Parker Hannifin Manufacturing Germany GmbH & Co. KG
Pump & Motor Division Europe
Chemnitz, Germany
Axial Piston Pump
Series PV, series 47 and higher
Bulletin MSG30-3245-INST/UK
Installation manual
The length of the load sensing line can be up to
15 m. If the line is longer than 5 m it has to be
considered, that low environmental temperatures
and high fluid viscosity can have a negative influ-
ence to the compensator performance.
The line should be designed to avoid any signifi-
cant pressure drop.
Factory setting for the load sensing pressure dif-
ferential is 10 bar ± 1 bar. This adjustment should
only be changed in exceptional cases.
The adjustment is possible by turning the pilot
valve housing after loosening the lock nut.
Please refer to the setting instructions on page 8.
All compensators described in chapters 3 – 6
can be shipped with a directional control valve
for stand-by operation (compensator codes
ends with..W) or with a proportional pilot valve
for electrical pressure adjustment (compensator
code ends with ..K)
Compensator code ...MMW with directional
control valve code D1VW002K*JW for stand-by
operation (24 VDC, normally open)
Compensator code ...MMK with proportional
pressure pilto valve code PVACRES-*K35
8. Two spool load sensing compensator, codes ...MTP and ...MTK
interface NG6, DIN24 340 for pilot valve
pressure control stage
load sensing port
flow control stage
The two spool compensator, code ...MT* has
two separate compensator valves for flow (load
sensing) and pressure compensation.
The following port options are available for remote
pressure and load sensing compensators:
That results in a steeper pressure compensa-
tion curve, which can be beneficial in certain
applications.
The flow control stage has no integrated pilot
valve, because this would eliminate the effect of
the two spool control. The pressure stage has
no integrated pilot valve, because during flow
control the T port of the pressure compensator
is under control pressure. This would prevent the
pilot valve from opening.
With the adapter kit PVCCK.. the pressure
compensator can be made remote controlled.
On the topside interface any pressure pilot valve
can be mounted. See chapter 3 for requirements.
The factory setting of the flow compensator is
10 ± 1 bar, the adjustment for the pressure com-
thread and
port code
port thread
dimensions
1
G 1/4 BSPP
3
7/16-20 UNF
8
M14 x 1.5 ISO 6149-1