Cprv (Charge Pressure Relief Valve) - Danfoss LDT 21 Service Manual

Service Manual
LDT 21/24/32 Closed Circuit Axial Piston Transmission
Operations

CPRV (Charge Pressure Relief Valve)

10 | © Danfoss | June 2022
The charge pressure relief valve maintains charge pressure at a designated level above case pressure. The
charge pressure relief valve is a direct acting poppet valve which opens and discharges fluid to the
hydrostatic transmission case when pressure exceeds a designated level. For external charge flow the
CPRV is set according to below table. The charge pressure relief valve setting is specified on the model
code of the unit.
Charge Pressure Relief Valve settings for external charge supply
LDT Size
LDT21
LDT24
LDT32
LDT21 CPRV
Charge Pressure
Charge Pressure
Flow, l/min [US gal/min]
7.0 [1.9]
10.8 [2.9]
13.8 [3.6]
LDT24 CPRV
LDT32 CPRV
Charge Pressure
AX417167456877en-000101