CPRV valve
P106274
Minimum charge pressure is the lowest pressure allowed to maintain a safe working condition in the
low side of the loop.
Maximum charge pressure is the highest charge pressure allowed which provides normal component
life. Elevated charge pressure can be used as a secondary means to reduce the swashplate response time.
The charge pressure setting listed in the order code is the set pressure of the charge relief valve with the
pump in neutral, operating with 5 gpm of charge flow. The charge pressure setting is referenced to case
pressure. Charge pressure is the differential pressure above case pressure.
LPV is designed for a maximum charge flow of 57 L/min [15 US gal/min].
Loop flushing valve
LPV pumps incorporate an optional integral loop flushing valve, which removes heat and contaminants
from the main loop.
LPV utilizes a special loop flushing spool design. On dual path systems, take special care to verify
acceptable performance.
Loop flushing valve
P106276
Neutral return mechanism
The neutral return mechanism mechanically returns the pump to zero displacement. A cam allows
precise zero displacement adjustment.
Maximum return force of the neutral return mechanism is 5.65 N•m [50 lbf•in]
W
Warning
Failure of the pump to return to neutral in the absence of control input will cause unintended
vehicle movement. Some control systems may require an additional neutral return mechanism to
overcome friction in the control linkage. Verify pump returns to neutral under all operating conditions
when the control is released.
Technical Information
LPV Axial Piston Pumps
Operation
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©
Danfoss | September 2017
520L0954 | BC00000044en-US0102