Key for operating ball valves

Details Key for operating ball valves Key for operating ball valves

1982-08-26

1984-11-06

Schwadron, Martin P.

Valves and valve actuation

Detachable actuator

Rotary valve

403359, 403380, F16K 3100

Patent

active

044808143

ABSTRACT:
A rectangular steel key on the control stem for operating the cast iron ball of a ball valve, wherein the key is provided with two large cylindrical steel joint pieces which are idly fitted onto the two ends of the key, and which are inserted into corresponding cylindrical cavities in the seat present in the pivot of the ball.

REFERENCES:
patent: 1135731 (1915-04-01), Smyser
patent: 1878569 (1932-09-01), Zolleis
patent: 3155368 (1964-11-01), Shafer
patent: 3586357 (1971-06-01), Orain
patent: 3760836 (1973-09-01), Albanese

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