Valves and valve actuation – Rotary valves – Ball valve
Patent
1991-03-22
1991-12-31
Fox, John C.
Valves and valve actuation
Rotary valves
Ball valve
251367, F16K 506
Patent
active
050765426
ABSTRACT:
Ball-cock made of plastic parts with a spherical shut-off element in a housing with at first end a nesting place for a sealing ring and at the other end an end flange with also a nesting place for a sealing ring, said end flange having a radially projecting peripheral rib snapping into a peripheral groove near the second housing end in the inside wall thereof, housing flange and end flange being each provided with a short cylindrical end stub sealingly accommodated in an outer housing of which the inside end wall determines a nesting place for one of the sealing rings, and which at the other end is shut off by an end flange determining a nesting place for the other sealing ring.
REFERENCES:
patent: 4697787 (1987-10-01), Pelleboer
Lodder Bernhard
Ottens Jan
Fox John C.
Jaskiewicz Edmund M.
Nederlandse Industriele Maatschappij Nefit B.V.
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