Proportional spool valve cartridge WVPPM42_150

Proportional spool valves M42x2

Pilot operated proportional spool valve in screw-in cartridge cons- truction. Precise spool fit, low leakage, long service life time. Spool made of hardened steel. The valve is controlled externally through a pilot pressure via the x and y connections. Without control, the piston is held in the central positon by a spring. Proportional to the pilot pressure, the spool opening and the valve volume flow increase. Thanks to the optimum spool form, sensitive movement processes are possible. For the control, Wandfluh proportional pressure valves (see register 2.3) and Wandfluh proportional amplifiers (see register 1.13) are available.

Proportional valves Proportional spool valve cartridge WVPPM42_150

Proportional spool valve
Screw-in cartridge construction

  • pilot operated
  • Qmax = 250 l/min
  • 1 volume flow level
  • QN max = 150 l/min
  • pmax = 315 bar


Proportional spool valves are perfectly suitable for demanding tasks due to the high resolution, large volume flow and low hyste- resis. The applications are in the industry as well as in the mobile hydraulics for the smooth control of hydraulic actuators. Some examples: control of the rotor blades of wind generators, forestry and earth moving machines, machine tools and paper production machines, simple position controls, robotics and fan control.