Automatic water tank for compact non-pressure solar water heater

This is a kind of small water tank which installed on the top of the main water tank, there is a ball valve inside, cold water loading from the samll tank to the main tank.

It is our patent design.

For the semi-auto non-pressure swh, the cold water loaded directly to the main tank, so when the main tank is full, they you must close the cold water inlet valve by hand.

Fitted with automatci small water tank, when the main tank is full, then the ball valve can close the cold water inlet itself, you don't need to do it by hand.

Profit:: can stop the cold water inlet itself

Defect: can't take much more pressure, only 0.3Mpa

when you use hot water, cold water will be loaded at the same time, the water temperature will be mixed and lower slowly.