Cartridge Seat Valve series WS22G / O
Cartridge Directional Valves

Cartridge Seat Valve series WS22G / O

Pressure [bar]


Flow rate [L/min]


These two−stage 2/2 solenoid operated directional seat valves, series WS22G / WS22O, are size 16 high performance screw−in cartridges with an M42x2 mounting thread for cavity type EB, which conforms to ISO 7789. The main and pilot stages are both designed on the poppet/seat principle, and they are therefore virtually leak−free in both directions of flow (bidirectional seat−valve shut−off). De−energised closed” and de−energised open” functions are available. In addition, these solenoid operated seat valves can be supplied with a low−watt coil (nominal power consumption 8 W). The straightforward design delivers an outstanding price/performance ratio and good pressure/flow ratings. These screw−in cartridges are predominantly used in certain mobile and industrial applications where leak−tight shut− off functions are crucially important. Examples are where loads, tensions, or clamping forces must be held without leakage.

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  • With bidirectional seat−valve shut−off
  • No external pilot drain required
  • High flow values
  • Low watt” model (8 W) is available
  • High pressure wet−armature solenoids
  • The slip−on coil can be rotated, and it can be replaced without opening the hydraulic envelope
  • Various plug connections and voltages are available
  • All external parts zinc plated, chromited (CrVI−free)
  • Can be fitted in a line−mounting body
  • Can be fitted in stack−mounting bodies

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