Feature:
1. Material of mainfold: Aluminum
2. Frame: Zinc coating
3. Vacuume tube: 58*1800mm. With heat pipe. No water in the tube no dirty, prevent frost
4. Woring pressure: 0.6Mpa.
5. It can use as usual when one tube damaged.

The principle of pressue solar water heater
1. The collector applies the fourth generation of solar collector_heat pipe vacuum collector, to transfer the solar power to heat energy.
2. When the temperature of TC ( the temperature of the collector) is higher than that of TR( the temperature of the water tank), the controlling device will start the circulation pump.
3. During the working of circulation pump, when the temperature difference is less than a set  point, the circulation pump will stop...
5. When TR (the temperature of the water tank) reaches the highest of set point. The controlling device will close the circulation pump.
6. The electrical heating device will make the temperature of the water tank stay at a set point