Valves - Directional Controls - Check Valve - Pilot Operated





The PCV16 is a pilot operated, hydraulic check valve for use in blocking or load holding circuits. The valve allows flow from port "b" to port "a", while normally blocking flow in the opposite direction. Flow will be allowed from "a" to "b" when pressure is applied to port "x". The valve has 3.6:1 pilot ratio, so at least 28% of the load pressure held at port "a" is required at port "x" to open the valve


  • Hardened seat for long life and low leakage.
  • Optional sealed pilot piston.
  • Optional spring ranges.
  • Check section is serviceable as a cartridge.
Pressure Ratings
Pressure rating:
  • 241 bar (3500 psi)
Pilot ratio:
  • 3.6:1
Check valve spring value:
  • 1.7 bar (25 psi) Standard for seal codes "n" and "v"
  • 4.1 bar (60 psi) Standard for seal codes "ns" and "vs" (sealed piston)
Temperature Ratings
Operating fluid temperature:
  • -40 to 120 °C (-40 to 248 °F)
Flow Ratings
Maximum internal leakage:
  • 0.25 ml/min (5 drops/min) A to b at 241 bar (3500 psi)
  • 245 ml/min (15 in³/min) B to x without sealed piston, at 241 bar (3500 psi)
Flow performance:
  • See graph
Unit weight:
  • 1.95 kg (4.30 lb)


Cartridge ( CV16-20 ): Weight: 0.29 kg (0.63 lb); Steel with hardened work surfaces. Zinc-plated exposed surfaces; Buna N O-rings and polyester elastomer back-ups standard.

Pilot Piston: Hardened Steel.

Standard Ported Body : Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ; consult factory.

Seal kit:
  • SK16-2N-T Buna
  • SK16-2V-T Viton