HYRV10-20 (Cartridge Direct Acting Relief Valve)

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


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



The valve blocks flow from ① to ② until sufficient pressure is present at ① to force the poppet from its seat.



Operating pressure:

228 Bar

Standard spring ranges:

3.45 to 41.38 bar; preset: 21 bar

10.34 to 82.76 bar; preset: 41 bar

17.24 to 158.62 bar; preset: 80 bar

17.2 to 248.2 bar; preset: 124 bar

Reseat pressure:

90% of crack pressure (crack pressure at 0.95 lpm/ 0.25 gpm)


See pressure drop vs. flow graph

Internal leakage:

5 Drops/min. Max. to 80% of nominal setting


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


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


HY10-2, see page H.1.3

Body material:

6061-T6 Aluminum alloy rated to 207 bar, steel & ductile iron rated to 350 bar


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