Accession Number : ADD006940

Title :   Self-Restricting Shutoff Valve.

Descriptive Note : Patent Application,


Personal Author(s) : Struessel,David A

Report Date : 12 Dec 1979

Pagination or Media Count : 12

Abstract : This report describes a self-restricting shutoff valve for use with a fluid leak detector to prevent excessive loss of fluid in event of a high flow-rate leak. A valve spool within a valve body is spring-biased to a partial flow position and is maintained in an opened position by fluid pressure. Upon loss of fluid system pressure, springs move the valve spool to a position to restrict fluid flow through the valve body. When sufficient loss of fluid occurs, a fluid leak detector actuates a pilot valve so that system fluid moves the valve spool to a closed position. (Author)

Descriptors :   *Patent applications, *Valves, Fluid flow, Pressure, Springs, Shutdowns, Self operation, Flow rate, Detectors, Hydraulic equipment, Rupture, Inventions

Subject Categories : Pumps, Filters, Pipes, Tubing, Fittings & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE