Detailed Product Description

This non-pressurized sun power water heating , other name non-pressurized solar energy heating.

this products price is very economic. there are including three part.

Part 1 :the vacuum tube

1)material is borosilicate glass 3.3, Diameter 47mm with leng 1500mm or 58mm with leng 1800.all glass double layer coaxial. outer tube thickness is from 1.6mm to 2.0mm, and the inner tube thickness about 1.6mm, the diameters have 37mm, 47mm, 58mm.

2) we can do 10tubes , 12 tubes, 15 tubes, 18tubes,20 tubes, 24 tubes,30 tubes and 36 tubes each sun power heating according to capacity.

3) the inner tube coated by solar selective coating, which absorbers solar energy and converts it into thermal energy for water heating,

d) this vacuum tube can endure the freezing -48 centigrade and resistance 25 mm-40mm hail.

Part 2: the tank

1)the outer tank material can be select colored , enamel, stailness, fluorine, carbon steel freely.

2)the inner tank material is SUS304-2B stailness steel with anticorrosion.

3)canpcity endure 30L-360L.

Part3: the Bracket

1 this unpressurized sun power bracket material have Galvanized steel, aluminium alloy, and stailness steel.

2 this Bracket high can be adjust according the angle of the solar irradiation.

The unpressurized system is based on the natural circulation-thermosiphon phenomenon, it's the most cost-effectiveness and environmentally friendly way to hardness solar energy for hot water applications, which is unsurpassed by any other solar thermal products, for its most high efficiencym, low cost,simple structure and easy installation.

We are chinese manufactory, so we can supply the best price in the good qualit.hope you are interested in them, let me detail our some rules:

1 Moq is 80sets.

2 shipping item:FOB SHANGHAI

3payment by 100%.30% as deposit.

4packing:out of foam and carton.

If you have any question, welcome your inquiry.