HYPD10-34 (Two Way Pilot Directional Valve, Normally Closed)

A cartridge-style 2-way pilot-operated spool-type external-vent directional valve.


Unpiloted, the valve blocks flow from ③ to ② bidirectionally.

V is a 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 ② to ③ bidirectionally. 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 full spool shift:

For 4.1bar spring: 4.7bar

For 7.6bar spring: 8.6bar


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


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


HY10-3, 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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