Walvoil SD4 Monoblock Valves


The Walvoil SD4 valve is a compact, robust and low-cost valve used in open-centre and closed-centre hydraulic systems. Common applications of this one-section valve are wood splitters, small dumpers, small‑sized tractors and workshop presses.

Features of the SD4 include:

  • Main pressure release valve
  • No check valve
  • Potential for manual, electric on/off and pneumatic controls
  • 16mm (0.63 inches) interchangeable spools
Key technical details:
  • Nominal flow rating: 45 litres/minute (12 US gallons/minute)
  • Maximum pressure: 250 bar (3600 psi)
  • Number of sections: 1

Download the Walvoil SD4 technical catalogue >>>

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