Gate valve

Details Gate valve Gate valve

1977-01-31

1978-03-28

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Gate

251328, F16K 3316

Patent

active

040811743

ABSTRACT:
A gate valve for high and low pressure service conditions. Flanges extend from side edges of the gate member, the width of the gate member through the flanges being substantially identical to the diameter of the cylindrical valve chamber in the valve body. A relief is provided on either side of the valve chamber and so positioned that the flanges are received therein when the gate member is in the closed position, whereby the gate member is not guided in the closed position to eliminate any possible binding thereof. A cylindrical recess is formed in the wall of the valve chamber encircling each inlet and outlet opening, the recesses being concentric, and a valve seat is received in each recess. Each valve seat is provided with a bore therethrough coaxial with the flow passage and comprises a cylindrical portion received within its respective recess and an enlarged portion within the valve chamber in abutment with and supported from wedging by the adjacent surface of the valve chamber and presenting a planar surface adjacent the surface of the gate member.

REFERENCES:
patent: 2954044 (1960-09-01), Volpin
patent: 3032310 (1962-05-01), Hansen
patent: 3768774 (1973-10-01), Baugh

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