HYRV08 (Cartridge Direct Acting Relief Valve)

Description:
A cartridge-style direct-acting poppet-type relief valve.

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

 

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