Stop-check valve

Details Stop-check valve Stop-check valve

1988-10-06

1989-12-19

Chambers, A. Michael

Valves and valve actuation

Lost motion between actuator and valve

Check valve with external opening and closing means

251187, 251203, F16K 3144

Patent

active

048877921

ABSTRACT:
A stop-check valve includes inside a valve body a swing check valve disc and a contacting projection. A vertically mounted valve rod provided with a handwheel and having at the lower end a structure of a cylindrical contact portion is further included. The contact portion is vertically movable in coupling arrangement with the valve rod and capable of contacting with the contacting projection on the valve disc.

REFERENCES:
patent: 1645785 (1927-10-01), Wilson
patent: 2999666 (1961-09-01), Sjogren
patent: 3334858 (1967-08-01), Hay

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