Valve having high pressure and low pressure seals

Details Valve having high pressure and low pressure seals Valve having high pressure and low pressure seals

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 5/06 (2006.01) F16K 1/226 (2006.01) F16K 1/26 (2006.01) F16K 1/44 (2006.01) F16K 3/02 (2006.01) F16K 5/20 (2006.01)

Patent

CA 2749374

A valve having high and low pressure seals. The valve has a housing in which is mounted a valve closing member having a sealing surface which faces an opening in the housing. A low pressure seal surrounds the opening and is biased into contact with the sealing surface. A high pressure seal also surrounds the opening. Pressure in the valve pushes the closing member against the low pressure seal, which moves toward the opening until the closing member contacts the high pressure seal.

La présente invention concerne une soupape comprenant des joints haute pression et basse pression. La soupape comprend un logement dans lequel est monté un élément de fermeture de soupape comprenant une surface d'étanchéité qui fait face à une ouverture dans le logement. Un joint basse pression entoure l'ouverture et est sollicité pour entrer en contact avec la surface d'étanchéité. Un joint haute pression entoure également l'ouverture. La pression dans la soupape pousse l'élément de fermeture contre le joint basse pression, qui se déplace en direction de l'ouverture jusqu'à ce que l'élément de fermeture entre en contact avec le joint haute pression.

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