Gate valve rotating disc

Details Gate valve rotating disc Gate valve rotating disc

1975-11-10

1977-03-22

Schwadron, Martin P.

Fluid handling

With repair, tapping, assembly, or disassembly means

With provision of alternate wear parts

251230, 251326, F16K 4300

Patent

active

040130908

ABSTRACT:
A gate valve having a flow passage therethrough is provided with a valve stem movable disc having an opening permitting fluid flow through the passageway when in register therewith and interrupting fluid flow when the disc is in a valve closed position. The disc is provided with a removable cylindrical plug mating with ring-like seats on opposite sides of the disc surrounding and coaxial with the flow passageway. Ratchet teeth on the plug engage a detent to rotate it through a predetermined arc each time the gate valve is closed.

REFERENCES:
patent: 2977975 (1961-04-01), Allen
patent: 2977976 (1961-04-01), Allen
patent: 2977977 (1961-04-01), Pennington
patent: 3472271 (1969-10-01), Allen
patent: 3614061 (1971-10-01), Fitzpatrick
patent: 3871616 (1975-03-01), Taylor

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