KCD-HB50 is a pressurized water heater, which is always filled with water in normal use. In normal use, the water inlet valve is always open. When the water outlet valve is opened, hot water is squeezed out by the pressure of cold water. When it is not used, the water outlet valve can be closed without closing the water inlet valve.
Extended data:
The water inlet and outlet principle of electric water heater is as follows:
Tap water enters the bottom of all electric water heaters, and all the original hot water in the water tank is pressed out from the top by tap water pressure.
Because the density of hot water is smaller than that of cold water, it always floats on the upper part of the inner container after heating. After the cold water enters from the bottom, the hot water is squeezed out from the opening of the water outlet pipe at the upper part of the inner container, so the hot water can be squeezed into the water outlet pipe and come out from the water outlet nozzle for people to use.
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