Valve element

A - Human Necessities – 62 – C

Patent

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Details

A62C 35/08 (2006.01) A62C 13/64 (2006.01) A62C 35/68 (2006.01) A62C 37/08 (2006.01)

Patent

CA 2479767

Valve element, comprising a main body, at least one inlet and at least one outlet, a passage connecting the inlet and outlet, at least one burst disk (rupture disk) or equivalent, which, when unbroken, closes the passage from inlet to outlet, and a piston element provided with a piercing element or the like for piercing the burst disk. The piston element is provided with a passage for a pressure medium, said passage extending axially through the piston element from one first side to one second side, that the piston element is provided with a second burst disk or equivalent which, when unbroken, closes the passage provided in the piston element.

L'invention concerne un élément de soupape (10) comprenant un corps principal, au moins une entrée (101) et au moins une sortie (102), un passage reliant l'entrée et la sortie, au moins un disque de sécurité (disque de rupture) (13) ou analogue, qui, lorsqu'il n'est pas rompu, obture un passage allant de l'entrée à la sortie, et un élément de piston (15) comprenant un élément perceur (14) ou analogue destiné à percer le disque de sécurité. L'élément de piston (15) comprend un passage (17) destiné à un support de pression, ce passage s'étendant axialement à travers l'élément de piston à partir d'un premier côté vers un second côté. Cet élément de piston est également équipé d'un second disque de sécurité ou analogue qui, lorsqu'il n'est pas rompu, obture le passage (17) ménagé dans l'élément de piston.

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