Drain valve for a warewasher

A - Human Necessities – 47 – L

Patent

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Details

A47L 15/42 (2006.01) B65D 90/58 (2006.01) F16K 3/02 (2006.01)

Patent

CA 2270554

A drain valve (10) for controlling the flow of water from a source of standing water to a drain, the drain valve comprising: a valve body (17), an inlet (11) in said valve body connectable to said source, an outlet (12) in said valve body connectable to a drain, a fluid passageway (13) through said valve body running from said inlet to said outlet, a cavity in said valve body intersecting said passageway, a gate disposed in said cavity, said gate being movable between an open position wherein water can flow through said passageway to a closed position wherein the flow of water through said passageway is blocked, a water supply line (39) for supplying water under pressure to said cavity on one side of said gate, and a water supply valve for controlling the flow of water from said supply line to said cavity, whereby when said water supply valve (36) is open, water flows into said cavity and moves said gate from said open position to said closed position and when said water supply valve is closed, said gate returns to said open position.

L'invention concerne une soupape de vidange (10) permettant de réguler l'écoulement d'eau allant d'une source d'eau stagnante à un dispositif de vidange, la soupape de vidange comprenant: un corps (17) de soupape, une entrée (11) dans ledit corps de soupape pouvant être reliée à ladite source, une sortie (12) dans ledit corps de soupape pouvant être reliée à un dispositif de vidange, un conduit (13) de fluide traversant ledit corps de soupape entre ladite entrée et ladite sortie, une cavité dans ledit corps de soupape coupant ledit conduit, un clapet placé dans ladite cavité, ledit clapet pouvant être déplacé entre une position ouverte, dans laquelle l'eau peut s'écouler dans ledit conduit, et une position fermée, dans laquelle l'écoulement d'eau dans ledit conduit est bloqué, un tuyau (39) d'amenée d'eau permettant d'amener de l'eau sous pression dans ladite cavité par un côté dudit clapet et une soupape (36) d'alimentation en eau permettant de réguler l'écoulement d'eau dudit tuyau d'amenée à ladite cavité. Lorsque ladite soupape d'alimentation en eau est ouverte, l'eau s'écoule dans ladite cavité et déplace ledit clapet de ladite position ouverte à ladite position fermée, et lorsque ladite soupape d'alimentation en eau est fermée, ledit clapet revient dans ladite position ouverte.

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