Metal diaphragm valve

Details Metal diaphragm valve Metal diaphragm valve

1989-08-04

1990-09-04

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Diaphragm

251368, 137550, F16K 716

Patent

active

049538268

ABSTRACT:
A metal diaphragm valve comprises a valve cage, a metallic valve seat integral with the valve cage, a metal diaphragm having a peripheral edge portion supported in a liquid-tight manner by the valve cage and a central portion facing the valve to touch and leave the seat, a drive member for opening and closing the metal diaphragm, and a diaphragm pressing member interposed between the drive member and the metal diaphragm and adapted to press the diaphragm against the valve seat at a uniform sealing pressure.

REFERENCES:
patent: 1069067 (1913-07-01), Huxford
patent: 2236253 (1941-03-01), Testori
patent: 2856148 (1958-10-01), Heathcote et al.
patent: 4828219 (1989-05-01), Ohmi et al.

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