Adjustable valve linkage

Details Adjustable valve linkage Adjustable valve linkage

1988-03-08

1989-06-06

Walton, George L.

Valves and valve actuation

Lost motion between actuator and valve

Overload release

74581, 248670, 248674, 25112901, 251250, 137315, F16K 3104, F16K 3154, F16K 4300

Patent

active

048364975

ABSTRACT:
A valve actuator mechanism for supplying a selectively adjustable close-off force to an associated valve. The mechanism comprises a means for urging the valve plunger into engagement with the valve seat with a predetermined initial force and resistive means for generating a resistive force such that the close-off force is less than the initial by a predetermined amount. The resistive force can be selectively adjusted also.

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patent: 4549446 (1985-10-01), Beeson
patent: 4633897 (1987-01-01), Effenberger

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