Valves and valve actuation – Reciprocating valve – Diaphragm
Patent
1979-12-12
1982-03-16
Rosenthal, Arnold
Valves and valve actuation
Reciprocating valve
Diaphragm
137375, F16K 712
Patent
active
043197370
ABSTRACT:
A diaphragm valve has a body defining a fluid passageway and, in the wall of the body, an opening in communication with the fluid passageway. A diaphragm for controlling fluid flow through the passageway extends across the opening and its periphery is clamped between the body and a bonnet secured to the body. Around the opening in the body is a diaphragm seating formed by two flat surfaces inclined relative to each other so as to be divergent. The bonnet is also provided with a diaphragm seating which comprises two flat surfaces inclined relative to each other so as to converge at the bottom end of the bonnet. The diaphragm seating is such as to provide a straight-through fluid passageway which, at each end of the body, is of circular section, these sections being joined by an elliptical or substantially elliptical section.
REFERENCES:
patent: 1992043 (1935-02-01), Saunders
patent: 2236253 (1941-03-01), Testori
patent: 2605991 (1952-08-01), Kaye
patent: 2725211 (1955-11-01), Boteler
patent: 2988322 (1961-06-01), Anderson
patent: 3103342 (1963-09-01), Boteler
patent: 3310280 (1967-03-01), Boteler
patent: 3426999 (1969-02-01), Toinet
patent: 3811649 (1974-05-01), Press et al.
patent: 3918495 (1975-11-01), Abrahams
Rosenthal Arnold
Waterfield Engineering Limited
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