Pressure control valve assembly

Details Pressure control valve assembly Pressure control valve assembly

1979-12-27

1981-06-30

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137494, F16K 1706

Patent

active

042757584

ABSTRACT:
A pressure control valve assembly for controlling the fluid pressure in an external fluid circuit at a predetermined or required pressure equal to or smaller than the set pressure comprises a valve housing having a movable valve seat member supported therein for axial movement relative to the valve housing, a valving member having a valve or poppet element normally seated against the movable valve seat member and closing a discharge path, a primary biasing spring for biasing the poppet element against the movable valve seat member and a set pressure adjustment exerting an axial pushing force on the movable valve seat member. By the operation of the set pressure adjustment, the valve assembly can be set to operate at a required pressure and in this condition, the movable valve seat member is held in a state of equilibrium.

REFERENCES:
patent: 2667893 (1954-02-01), Kupiec
patent: 3578018 (1971-05-01), Dillon
patent: 3744515 (1973-07-01), Inoue
patent: 4074695 (1978-02-01), Weirich

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