Valves with lenticular or spherical closing member

Details Valves with lenticular or spherical closing member Valves with lenticular or spherical closing member

1980-12-15

1983-08-23

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Butterfly

251315, 251DIG1, F16K 506

Patent

active

043999760

ABSTRACT:
The invention relates to an improvement to valves with lenticular or spherical closing member mounted for pivoting in a valve body with interposition of a circular tight seal.
Downstream of the closing member, the valve body is provided with a bore inside which is removably mounted an annular member against which rests the tight seal, and which has a spherical part adopting the corresponding shape of the closing member, the said annular member comprising vent-holes.
The invention finds a useful application in the production of valves.

REFERENCES:
patent: 2676782 (1954-04-01), Bostock et al.
patent: 3394914 (1968-07-01), Nagasato
patent: 3522930 (1970-08-01), Richards et al.
patent: 3937441 (1976-02-01), Baumann
patent: 4172584 (1979-10-01), Legris
patent: 4226258 (1980-10-01), Nakanishi

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