High presssure fluid emergency shutoff valve
OwnerJulian S. Taylorinventor
Life of this patent
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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.
Claims5
A high pressure fluid flow line emergency shutoff valve, comprising:
- a valve body having an inlet port and an outlet port forming a fluid passageway interposed in the flow line;
- a valve seat intersecting the fluid passageway;
- normally open valve means movably supported by said body for movement toward said valve seat and closing the fluid passageway;
- and,
- axially collapsible pin means for normally biasing said valve means toward a fluid passageway open position and releasing said valve means for seating on said valve seat in response to a predetermined value of fluid pressure in the fluid passageway.
Dependencies are inferred from the claim text.