Shut-off valve

Details Shut-off valve Shut-off valve

1978-07-31

1981-01-13

Schwadron, Martin P.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

137559, 13761411, 251185, F16K 1302, F16K 2500

Patent

active

042443938

ABSTRACT:
The present invention concerns a shut-off valve comprising a valve body with at least two flow ports, two shutters and a turning shaft. Said shutters are placed opposite each other on an annular spring which forms the lower part of the turning shaft and by means of which the shutters are pressed against and carried along the inner surface of the valve body, or housing, closing simultaneously said two flow ports. The spring is further braced against the bottom of the valve body, or its tensioning device, in the axial direction of the turning shaft.

REFERENCES:
patent: 1724016 (1929-08-01), Godfrey
patent: 2075460 (1937-03-01), Parker
patent: 3854497 (1974-12-01), Rosenberg
patent: 4073471 (1978-02-01), Lehtinen

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