Water heater selector valve

Temperature range:49---54C

When coming water is below 49,it will flow out from cold port.When abouve 54,flow from hot port.

When between 49--54C,it will flow from both ports.

Normally it is applied in solar heater+gas/electric water heater system.When sun shine is short and water temp from solar geyser is not hot enough, the water will be deverted to the second step heater,such as gas or electric heater for second heating.

For detailed information,pls see the following picutre: