A non-return valve

Details A non-return valve A non-return valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 15/03 (2006.01) F16K 15/04 (2006.01) F16K 15/06 (2006.01)

Patent

CA 2689462

The present invention relates to anon-return valve (1) for a liquid piping system, comprising a valve housing (2) and a valve member (3), which is movable between a first position, in which a flow path is blocked, and a second position, in 5 which the flow path is unblocked. The non-return valve (1) comprises a non-return valve attachment (6) comprising a housing (7), a piston assembly (9, 10) and an energy storing means (11), the piston assembly being axially movable in relation to said housing (7) between a first active position, 10 and a second position. In said second position the fluid pressure of said liquid drives the piston assembly against the action of the energy storing means (11) away from said first position, such that the valve member (3) is movable into said second position of the valve member (3).

La présente invention concerne un clapet anti-retour (1) pour un système de canalisation de liquide, comprenant un boîtier de clapet (2) et un élément de clapet (3), qui peut être déplacé entre une première position, dans laquelle un trajet d'écoulement est bloqué, et une seconde position dans laquelle le trajet d'écoulement n'est pas bloqué. Le clapet anti-retour (1) comprend une fixation de clapet anti-retour (6) comprenant un boîtier (7), un ensemble piston (9, 10) et un moyen de stockage d'énergie (11), l'ensemble piston étant mobile axialement par rapport au dit boîtier (7) entre une première position active et une seconde position. Dans ladite seconde position, la pression hydraulique dudit liquide entraîne l'ensemble piston à l'encontre de l'action du moyen de stockage de fluide (11) loin de ladite première position de telle sorte que l'élément de clapet (3) peut être déplacé dans ladite seconde position de l'élément de clapet (3).

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