Relief valve arrangement

Details Relief valve arrangement Relief valve arrangement

1983-08-19

1985-02-26

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

251 634, F16K 1706

Patent

active

045012911

ABSTRACT:
Relief valve arrangement comprising a pressure limiting relief valve, the pressure setting thereof can be switched by an auxiliary piston between two or more ranges so that the control pressure, which is obtained by a pilot valve, can be within a region, which can be controlled accurately.

REFERENCES:
patent: 2944564 (1960-07-01), Pettey
patent: 3017897 (1962-01-01), Seguenot
patent: 4019713 (1977-04-01), Kalb

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