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Operation:
The valve prevents flow from ① to ② until the set crack pressure at ① is achieved.
The poppet then unseats allowing flow from ① to ② protecting the circuit from over pressurization.
Specifications
Operating pressure: |
250 Bar |
Standard spring ranges: |
40 to 270 bar |
Reseat pressure: |
80% of crack pressure (crack pressure at 0.95 lpm/ 0.25 gpm) |
Flow: |
See pressure drop vs. flow graph |
Internal leakage: |
5 Drops/min. Max. to 80% of nominal setting |
Temperature: |
(-30℃ to +120℃) with NBR material seals |
Fluids: |
Mineral-based fluids with viscosity of 7.4 to 420 cSt. |
Cavity: |
HY08-2, see page H.1.2 |
Body material: |
6061-T6 Aluminum alloy rated to 207 bar, steel & ductile iron rated to 350 bar |