Water heater shut off device with water pressure delay line

Details Water heater shut off device with water pressure delay line Water heater shut off device with water pressure delay line

F - Mech Eng,Light,Heat,Weapons

24

H

F24H 9/20 (2006.01)

Patent

CA 2371001

A water supply shut off system includes a water pressure delay device which delays the transmission of any apparent change in water pressure between the input and the output side of the valve to the control input of the valve. This delay allows the input and output pressures to have a chance to generally equalize without falsely tripping the device. The water supply shut off system can also include a thermal expansion/contraction device that allows thermal expansion and contraction of a fluid medium, such as water, when the shut off device is used with a device to be protected such as a hot water heater.

Il s'agit d'un système d'interruption de l'alimentation en eau comprenant un dispositif à retard de pression d'eau dont la fonction est de retarder la transmission de toute variation apparente de la pression d'eau entre l'entrée et la sortie du robinet et la tige de commande du robinet. Ce retard accorde un délai suffisant pour que les pressions d'entrée et de sortie s'égalisent sans que cela n'entraîne la fermeture inopinée du dispositif. Le système d'interruption de l'alimentation en eau peut aussi comprendre un dispositif de dilatation/contraction thermique dont la fonction est de permettre la dilatation et la contraction du liquide (p. ex. de l'eau) si le système d'interruption de l'alimentation est utilisé avec un appareil à protéger, tel qu'un chauffe-eau.

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