High presssure fluid emergency shutoff valve

Details High presssure fluid emergency shutoff valve High presssure fluid emergency shutoff valve

1991-05-06

1991-11-26

Nilson, Robert G.

Fluid handling

Destructible or deformable element controlled

137461, F16K 1700

Patent

active

050675117

ABSTRACT:
An emergency shutoff valve for closing the upstream end portion of a high pressure fluid conductor in the event of unintentional closing the downstream end portion of the conductor is formed by a valve body interposed in the upstream end portion of the high pressure fluid conductor. The valve body contains a valve seat and a normally open valve for seating on the seat and interrupting fluid flow through the valve body in response to fluid pressure above a predetermined value in the conductor. The valve includes a stem slidably supported by and projecting, at one end portion, outwardly of the body. A top plate is secured to the body by posts in axial spaced relation with respect to the valve stem for supporting a pressure collapsible rod-like pin axially interposed between the top plate and the valve stem.

REFERENCES:
patent: 4240458 (1980-12-01), Huff
patent: 4724857 (1988-02-01), Taylor
patent: 4727903 (1988-03-01), Sturgis
patent: 4787409 (1988-11-01), Taylor

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