Pressure relief device

Details Pressure relief device Pressure relief device

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 17/40 (2006.01) F16K 15/06 (2006.01)

Patent

CA 2620576

A pressure relief device is disclosed for a system containing a pressurized fluid. The device includes a main valve body (12) having inlet (20) and outlet flow (26) ports and a valve plug (52) positioned to seal the flowpath of the pressurized fluid between the inlet port and the outlet port of main valve body. A force transmission component (72) is connected to the valve plug and an activation component (86) is installed between the force transmission component and a mounting surface. The activation component is configured to prevent axial movement of the valve plug until a predetermined pressure is exerted on the valve plug. The force transmission component more efficiently transfers the output force acting on the valve plug to the activation component .

La présente invention se rapporte à un dispositif limiteur de pression destiné à un système contenant un fluide sous pression. Le dispositif selon l'invention comprend un corps de soupape principal (12) possédant des orifices d'écoulement d'entrée (20) et de sortie (26), et un clapet de soupape (52) placé de manière à bloquer l'écoulement du fluide sous pression entre l'orifice d'entrée et l'orifice de sortie du corps de soupape principal. Un élément de transmission de force (72) est relié au clapet de soupape, et un élément d'activation (86) est disposé entre l'élément de transmission de force et une surface de montage. L'élément d'activation est adapté de manière à empêcher le mouvement axial du clapet de soupape jusqu'à ce qu'une pression prédéterminée soit exercée sur le clapet de soupape. L'élément de transmission de force transfère plus efficacement la force de sortie s'exerçant sur le clapet de soupape à l'élément d'activation.

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