Force transferring pressure relief device

  • US 8,915,260 B2
  • Filed: 09/09/2005
  • Issued: 12/23/2014
  • Est. Priority Date: 09/09/2005
  • Status: Active Grant
First Claim
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1. A pressure relief device for a system containing a pressurized fluid, comprising;

  • a main valve body including an axial passageway defining an inlet port, an outlet port, and a fluid flowpath between the inlet and outlet ports;

    a valve plug positioned to seal the inlet port of the main valve body;

    a force transmission component connected to the valve plug, the force transmission component comprising a curved protrusion member;

    an activation component installed between the protrusion member and a mounting surface, the activation component configured to prevent axial movement of the valve until a predetermined pressure is exerted on the valve; and

    a piston slidably housed within the relief device between the protrusion member and the activation component, the piston having a first end and a second end, wherein the first end and second end are exposed to environmental pressure;

    wherein the force transmission component only transfers an axial force acting on the valve plug to the activation component through the curved protrusion member and piston.

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