Pressure relief device for vessels

Details Pressure relief device for vessels Pressure relief device for vessels

1986-01-13

1987-06-23

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Pop valves

13751629, 137541, F16K 1704

Patent

active

046745300

ABSTRACT:
A pressure relief device (28) removably secured to a pressure vessel (10) has a valve closure (83) including an inner valve plate (84) and an outer cover (96) thereover. A spindle (68) is secured separately to valve plate (84) and cover (96), and springs (80, 82) positioned below a tapered plug (54) urges valve closure (83) to a closed position. An elastomeric O-ring (108) between plate (84) and cover (96) forms the primary seal and may be removed and replaced while valve plate (84) remains in a seated closed position.

REFERENCES:
patent: 1665394 (1928-04-01), Willoughby
patent: 1774690 (1930-09-01), Willoughby
patent: 2517858 (1950-08-01), Farris
patent: 2599622 (1952-06-01), Folmsbee
patent: 2787127 (1957-04-01), Benz
patent: 2821991 (1958-02-01), Marx
patent: 2834374 (1958-05-01), Klinkenberg
patent: 3035604 (1962-05-01), Portis
patent: 3422840 (1969-01-01), Bryant
patent: 4350176 (1982-09-01), Lace

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