Valve construction

Details Valve construction Valve construction

1978-03-13

1980-07-08

Cline, William R.

Valves and valve actuation

Hermetic flexible wall seal for actuator

251 614, F16K 4110, F16K 31365

Patent

active

042113873

ABSTRACT:
A valve assembly for controlling the flow of fluids, particularly corrosive fluids, wherein a valve actuator is sealingly shielded within a bellows assembly from contact with such fluid. A top portion of the bellows assembly is fixedly positioned with respect to the valve body and the actuator contacts a lower plug portion of the bellows assembly which serves to open and close a valve passage upon longitudinal movement of the actuator with respect to the valve body. A flexible pleated portion of the bellows assembly permits extension and contraction thereof in unison with the actuator's movement.

REFERENCES:
patent: 2925987 (1960-02-01), Priesmeyer
patent: 3251575 (1966-05-01), Campbell et al.
patent: 3399695 (1968-09-01), Stehlin
patent: 3528087 (1970-09-01), Perkins
patent: 3675891 (1972-07-01), Reynolds et al.
patent: 3884446 (1975-05-01), Erickson
patent: 3904174 (1975-09-01), Giese

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