Pressure responsive diaphragm control valve

Details Pressure responsive diaphragm control valve Pressure responsive diaphragm control valve

1989-01-19

1990-04-03

Chambers, A. Michael

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

251367, F16K 31145

Patent

active

049133977

ABSTRACT:
A diaphragm control valve including a casing having an opening in one side. A cylindrical pipe mounted in a coaxial relation to the casing, and having a valve seat at one end. A flexible diaphragm is symmetrically mounted in the casing in a spaced relation to the valve seat and has a diameter larger than the diameter of the valve seat. A cover is provided on one end of the casing to form a pressure chamber on one side of the diaphragm. Air is admitted under pressure into the chamber to move the diaphragm toward the valve seat to control the flow of fluid through the casing. A seal is provided between the cover and casing to seat the diaphragm into the casing.

REFERENCES:
patent: 3083943 (1963-04-01), Stewart, Jr. et al.
patent: 4699137 (1987-10-01), Schroeder

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