Girard Equipment, Inc.

Joseph Petrarca

Michael A Fernandez

Chris Lynch

Tim Girard

Glen Harm

Timothy P Girard

John LaFave

A pressure relief valve (), having: an upper housing () defining a housing internal chamber () and comprising at least one window () between the upper housing chamber and the atmosphere; a lower housing () comprising a housing opening (); a pallet () disposed within the housing internal chamber; and a pair of nested springs () disposed within the housing internal chamber and configured to bias the pallet toward the lower housing and thereby form a seal () between the housing opening and the housing internal chamber. When the pressure in the housing opening is at a full discharge pressure that is greater than and within fourteen percent of the start-to-discharge pressure, the pair of nested springs is configured to permit the pallet to travel a sufficient distance to expose a flow area of the at least one window that is at least greater than a flow area () of the housing opening.

Super high flow pressure relief vent

A spring capture assembly is provided for securing a compression spring of a spring-biased mechanism, such as a spring-biased pressure relief valve, to permit disassembly of the mechanism without risk of damage or injury associate with rapid resiling of the spring from a compressed state. The assembly includes a tool, a housing having an opening for admitting passage of the tool and capturing the spring at one end, a spring retainer, and a compression spring mounted within the housing and captured at one end by said housing and toward an opposite end by the spring retainer. The tool is adapted for mating with the spring retainer and the housing to compress the spring therebetween. The spring capture assembly may be incorporated into a pressure relief valve for venting pressure and/or vacuum from a pressure vessel. Provided also is a method for disassembling a spring-biased mechanism including a spring capture assembly.

Spring-capture assembly for a spring-biased mechanism and pressure relief valve including same

A valve includes a housing configured to interengage with a container, a first and second poppets axially movable between open and closed positions, a first seal between the first poppet and the housing, a second seal between the first poppet and the second poppet, and first and second resilient members disposed within the housing and urging the first and second poppets toward the closed position.

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Sparta, NJ, United States of America

Joseph Petrarca