Tilted seat diaphragm valve

Details Tilted seat diaphragm valve Tilted seat diaphragm valve

1994-07-22

1997-07-08

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 45, 251118, 251126, F16K 31385, F16K 31126

Patent

active

056452640

ABSTRACT:
Flow control valve with round tilted valve seat and pivotally mounted matching spherical valve plug for leak tight shut off with generous Mfg tolerances and low pressure drop. Method shown for automatically limiting bleed flow during valve open and automatically restricting bleed flow at near valve close position to slow valve closing.

REFERENCES:
patent: 2936780 (1960-05-01), Pratt
patent: 2953248 (1960-09-01), Troland
patent: 3103338 (1963-09-01), Marmo
patent: 3379406 (1968-04-01), Greer
patent: 3476353 (1969-11-01), Stampfli
patent: 3544062 (1970-12-01), Murray
patent: 3666235 (1972-05-01), Scott
patent: 4301992 (1981-11-01), Karbo
patent: 4336918 (1982-06-01), Karbo
patent: 4477051 (1984-10-01), Ben-Yehuda
patent: 5269333 (1993-12-01), Richmond

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