HYPD10-41 (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 ④, while flow is blocked at ②.

On remote pilot signal at ①, the valve shifts to open from ③ to ②, while blocking flow at ④.

Since ④ is common to the spring chamber, pressure on ④ will directly (1:1) affect the pilot pressure required, and must always be added to the bias spring value.



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 - 4.1 bar (60psi) spring: 4.7 bar (68.2psi)

- 7.6 bar (110psi) spring: 7.6 bar (110psi)

To full spool shift - 4.1 bar (60psi) spring: 5.2 bar (75psi)

- 7.6 bar (110psi) spring: 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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