Check valve assembly

F - Mech Eng,Light,Heat,Weapons – 15 – B

Patent

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Details

F15B 13/01 (2006.01) A01B 63/10 (2006.01) F15B 11/042 (2006.01) F15B 11/044 (2006.01) F15B 21/14 (2006.01)

Patent

CA 2269645

The present invention relates to a check valve and a valve system involving a check valve designed in such a way that a topping piston (92) can be placed against a main taper (72) to eject same from the valve seat (76). The main taper (72) is designed in such a way that it present no surface variations, and the topping piston (92) can be actuated through a pilot valve (10) so that the ejection of the pilot valve (10) may be controlled by the valve seat.

La présente invention porte sur un système de soupape anti-retour et un système de soupape mettant en oeuvre un système de soupape anti-retour conçu de telle manière qu'un piston champignon (92) peut être mis en place contre un cône principal (72) pour éjecter ce dernier de son siège de soupape (76). Le cône principal (72) est réalisé de telle façon qu'il ne présente aucune différence de surface, et le piston champignon (92) peut être actionné par l'intermédiaire d'une soupape pilote (10), en sorte que l'éjection de la soupape pilote (10) peut être commandée par le siège de soupape.

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