Liquid purge valve

F - Mech Eng,Light,Heat,Weapons – 16 – T

Patent

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Details

F16T 1/20 (2006.01) E21B 34/06 (2006.01) F16K 31/26 (2006.01) F16L 55/07 (2006.01) F16T 1/24 (2006.01) F16T 1/30 (2006.01) F17D 3/14 (2006.01)

Patent

CA 2657215

A liquid purge valve (20) comprising a housing (24) for sealingly fitting at an uppermost end of a substantially vertical pipe, an outlet tube (26) extending from the housing and projecting into the pipe, an outlet port (28) fitted with a sealing boundary (30) and sealable by a sealing member (32) pivotally secured within the housing so as to pivotally displace between a closed and an open position, a biasing member (50) biasing the sealing member into its open position, and a mass (60) articulated to the sealing member and extending downwards into the pipe. The mass applies a force at an opposite direction of the biasing member such that the resultant force acting on the sealing member determines its position such that when water level rises within the pipe the sealing member displaces into the open position.

La présente invention concerne un clapet (20) de purge de liquide qui comprend un corps (24) destiné à s'ajuster de manière étanche au niveau d'une extrémité supérieure d'un tuyau sensiblement vertical, un tube de sortie (26) s'étendant depuis le corps et s'insérant dans le tuyau, un orifice de sortie (28) comportant une limite d'étanchéité (30) et pouvant être hermétiquement fermé par un élément d'étanchéité (32) fixé pivotant dans le corps de manière à pivoter entre une position fermée et une position ouverte, un élément de sollicitation (50) qui sollicite l'élément d'étanchéité en position ouverte et une masse (60) articulée relativement à l'élément d'étanchéité et s'étendant vers le bas dans le tuyau. La masse applique une force au niveau d'une direction opposée de l'élément de sollicitation de sorte que la force résultante s'exerçant sur l'élément d'étanchéité détermine sa position afin que lorsque le niveau d'eau monte dans le tuyau, l'élément d'étanchéité se déplace en position ouverte.

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