Pressure responsive valve assembly

Details Pressure responsive valve assembly Pressure responsive valve assembly

1981-07-20

1983-04-05

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

251285, 251327, F16K 31126

Patent

active

043789323

ABSTRACT:
A pressure responsive valve assembly which comprises a housing having an upper part and a lower part. A fluid coupling with an inlet and an outlet is contained in the lower housing part and a fluid passageway extends between and connects the inlet to the outlet. A gate is slidably mounted within the lower housing part and movable between a closed position in which the gate extends across the passageway and blocks fluid flow between the inlet and outlet, and an open position in which the gate opens at least a portion of the fluid passageway. The actuation of the gate is controlled by a pressure responsive diaphragm which permits the gate to move to its open position only when the pressure from an external pressure line falls below a predetermined amount.

REFERENCES:
patent: 2001318 (1935-05-01), Spence
patent: 2399301 (1946-04-01), Spence
patent: 2425284 (1947-08-01), Spence
patent: 2815187 (1957-12-01), Hamer
patent: 4054156 (1977-10-01), Benson

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