High-response proportional directional valves, pilot operated


Pilot operated proportional directional valves with on-board electronics (OBE)

The onboard electronics (OBE) has a standard 7-pin connector for command, spool feedback, and 24V power. Overlapped spools have a spring centered fail-safe position. 4WRKE is normally used for open loop applications where higher repeatability is more important, also for lift, transfer, or clamping applications.


  • Size 25
  • Porting pattern to ISO 4401-8; NFPA T3.5.1M R1; ANSI B93.7 D09
  • Controls direction and magnitude of flow by analog command
  • Spool position feedback on main stage for low hystersis
  • Overlapped spool
  • Integrated amplifier

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