Ball valve

Details Ball valve Ball valve

1982-01-18

1983-08-23

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Ball valve

F16K 506

Patent

active

043999778

ABSTRACT:
A ball valve comprising a housing having inlet and outlet ports provided a fluid passageway therethrough, a rotatable closure member disposed within the housing and interposed between the inlet and outlet ports for providing alternate open and closed positions for the valve, a rotatable valve stem secured to the closure member for moving the closure member between the open and closed positions therefor, a valve seat removably secured to the housing and engagable by the closure member in the closed position thereof, and a removable sealing member provided for the valve seat to substantially preclude leakage of fluid around the closure member in the closed position of the valve.

REFERENCES:
patent: 2839266 (1958-06-01), Kaiser
patent: 2963262 (1960-12-01), Shafer
patent: 3570811 (1971-03-01), Kruschik
patent: 3937441 (1976-02-01), Baumann
patent: 4150811 (1979-04-01), Condit

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