Frost-resistant hydrant

E - Fixed Constructions – 03 – B

Patent

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Details

E03B 9/06 (2006.01) E03B 9/10 (2006.01)

Patent

CA 2211042

A frost-resistant hydrant includes a conduit or body tube (42') connected with a fluid source, a valve (58'), an actuator stem (300) connected with the valve, and a flow-through stem defined by a fluid passage through the valve and the actuator stem. The valve preferably includes a ceramic disk stack rotatable between an open position and a closed position. A combination back-flow preventer and vacuum breaker is positioned in the flow-through stem. The actuator stem (300) has a rotation limit enabling the valve to move between fully open and closed positions within 90 degrees. A cartridge body (52') incorporating the valve (58') includes an anti-rotation key engaging the conduit and fixing the rotational position of the valve cartridge (52') relative to the conduit (42').

Prise d'eau résistant au gel comprenant un conduit ou corps tubulaire (42') relié à une source de fluide, un clapet (58'), une tige de commande (300) reliée au clapet et une tige de circulation définie par un passage de fluide à travers le clapet et la tige de commande. Le clapet inclut de préférence un empilement de disques céramiques rotatifs entre une position ouverte et une position fermée. Un dispositif anti-retour combiné à un casse-vide est placé dans la tige de circulation. La tige de commande (300) est pourvue d'une limite de rotation permettant au clapet de se déplacer entre les positions complètement ouverte et complètement fermée dans un intervalle de 90 degrés. Un corps de cartouche (52') incorporant le clapet (58') inclut une clé anti-rotation venant en contact avec le conduit et fixant la position angulaire de la cartouche (52') contenant le clapet par rapport au conduit (42').

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