Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1980-08-18
1982-08-03
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
251174, 251315, 251316, F16K 4300, F16K 520
Patent
active
043423302
ABSTRACT:
An improved ball-type valve apparatus adapted for use in flowlines which provide a straight through flow path which minimizes flow turbulance and flow resistance in either direction through the valve housing. The ball is rotated by a crank between the open and closed positions for controlling flow through the valve. Oppositely facing seat rings engage the ball on opposite sides to provide a dual redundant sealing system with the primary seals located at the upstream seat with the secondary seal formed at the downstream seat. An access plug retains the ball in the valve housing and is secured with the valve housing by a segmented locking ring. When the plug is removed from the housing maintenance or assembly access to the ball, seat rings and their retaining means without disturbing the connections of the valve housing in the flowlines is provided.
REFERENCES:
patent: 3036590 (1962-05-01), Knox
patent: 3134396 (1964-05-01), Bredtschneider
patent: 3157190 (1964-11-01), Allen
patent: 3647179 (1972-03-01), Scaramucci et al.
patent: 3771545 (1973-11-01), Allen
patent: 3838844 (1974-10-01), Arn
patent: 4262691 (1981-04-01), Kacal
patent: 4266566 (1981-05-01), Kacal et al.
Keithahn Julian D.
Wieveg Raymond
Dodge, II John H.
Hydril Company
Walton George L.
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