Hydraulic electro-proportional cartridge-style valves from Bosch Rexroth and HydraForce can provide variable output of hydraulic flow, pressure or direction or speed of linear or rotary motion of a hydraulic cylinder or motor. Proportional valves are equipped with solenoids that provide electrical input for the hydraulic response.
Multi-function directional control cartridge valves (HydraForce SPCL, HSPEC) with built-in load-sensing (HydraForce SPCL) and flow compensation (HydraForce HSPEC) reduce hydraulic space claim and improve system efficiencies by combining multiple functions in a single cartridge valve.
Bosch Rexroth cartridge-style proportional valves are available for flow rates from 5 to 150 lpm (1.3 to 40 gpm) and operating pressures from 210 to 350 bar (2900 to 5076 psi).
HydraForce electro-proportional valves are available for flow rates from 0 to 189 lpm (0-50 gpm) and operating pressures from 20-350 bar (300-5075 psi).