HYPD10-40 (Three Way Pilot Directional Valve)

A cartridge-style 3-way pilot-operated spool-type external-vent directional valve.


On no remote pilot signal at ①, the valve allows flow from ③ to ② bi-directional, while flow is blocked at ④, spring chamber vent-to-atmosphere, which is internally O-ring sealed from the cartridge flow paths.

On remote pilot signal at ①, the valve shifts to open ③ to ④, while blocking flow at ②. Because of the vented spring chamber, the cartridge may be fully pressurized at any port without affecting required pilot pressure.



Max. operating pressure:

240 Bar


See pressure drop vs. flow graph

Internal leakage:

82 cc/min.max. at 207 bar

Pilot pressure required:

To spool crossover 7.6 bar (110psi)

To full spool shift 8.6 bar (125psi)


(-40℃ to +120℃) with NBR material seals


Mineral-based fluids with viscosity of 7.4 to 420 cSt.


HY10-4, see page H.1.4

Body material:

6061-T6 Aluminum alloy rated to 207 bar, steel & ductile iron rated to 350 bar


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