Diaphragm valve

Details Diaphragm valve Diaphragm valve

1994-01-24

1995-01-03

Walton, George L.

Valves and valve actuation

Reciprocating valve

Diaphragm

251229, 251265, 251284, 74 25, 74 8915, 744248VA, F16K 716

Patent

active

053779568

ABSTRACT:
A diaphragm valve includes a valve body accommodating an axial valve stem and housing a weir-type valve seat which cooperates with a diaphragm operated by a hand wheel for regulating a flow of fluid through the weir. A screw nut extends axially between the valve body and the hand wheel for limiting a closing lift of the diaphragm by impacting on the valve body. The screw nut is connected in form-fitting manner with the hand wheel so as to follow a displacement of the valve stem when turning the hand wheel for opening and closing of the valve.

REFERENCES:
patent: 2585667 (1952-02-01), Meador
patent: 2784934 (1957-03-01), Paulius, Jr. et al.
patent: 2977981 (1961-04-01), Jarrett
patent: 3148861 (1964-09-01), McFarland, Jr.
patent: 3631882 (1972-01-01), White, Jr.
patent: 3633874 (1972-01-01), Veugelers et al.
patent: 4014514 (1977-03-01), Priese et al.
patent: 4051865 (1977-10-01), Cocking et al.
patent: 4505451 (1985-03-01), Jonas
patent: 5106055 (1992-04-01), Phillips
patent: 5112027 (1992-05-01), Hanyu et al.

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