PARKER PVP pump PVP2336BR2MP21 PV180R1K1T1NMMC D31FBE01CC1NF00 PCD00A-400 PQDXXA-Z10 R4R0359311B110 hydraulic Pump valve

The swash plate angle controls the output flow of the pump. Swash plate angle is generated by the hydraulic force of the pumping pistons and the mechanical force of the swash plate bias spring. Control of the pump’s outlet flow is obtained by over-riding the force of the pumping pistons and bias spring with the hydraulic force of the servo piston by means of internal porting. Pressure is connected from the outlet port to the servo piston via a compensator spool.