Slide valve for pipelines

Details Slide valve for pipelines Slide valve for pipelines

1979-03-08

1981-07-14

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

With positive reduction

251174, 92 44, F16K 2500

Patent

active

042782368

ABSTRACT:
A valve housing is adapted to be built into a pipeline, and a valve plate is movable into a valve-closing position in the housing. A displaceable sealing member provides a seal between the valve plate and the housing. At least one spring tends to displace the member into sealing position, and at least one pressure-medium actuated bellows is arranged, upon receiving the pressure medium, to displace the member away from sealing position.

REFERENCES:
patent: 3130963 (1964-04-01), Stegner
patent: 3266525 (1966-08-01), Wolter
patent: 3741522 (1973-06-01), Frohlich

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