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Operation:
The valve blocks flow from ② to ① flow path until an operator pulls the shaft outward.
Note: pressure at port ① will directly act on the spool and spring. Port ① is intended to be a tank port only. The bias spring allows for up to 12.4 bar (180psi) back-pressure at ① before the valve will open. A unique 90° rotation lock is optional for positive “open” position holding.
The valve resets to spring return-to-close with a 90° turn from the locked-open position.
Specifications
Max. operating pressure: |
207 Bar |
Flow: |
See pressure drop vs. flow graph |
Internal leakage: |
5 Drops/min.max. at 207 bar |
Temperature: |
(-40℃ to +120℃) with NBR material seals |
Fluids: |
Mineral-based fluids with viscosity of 7.4 to 420 cSt. |
Cavity: |
HY10-2, see page H.1.3 |
Body material: |
6061-T6 Aluminum alloy rated to 207 bar, steel & ductile iron rated to 350 bar |