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Working Principle
1.The selective coating of the evacuated tubes converts solar energy into heat energy and transfers the heat to heat pipes by aluminum fins.
2.The liquid in the heat pipe (copper pipe) changes into vapor which rises to the condenser.
3.The heat then passes through the heat exchanger and The vapor becomes liquid, returning to the bottom of the heat pipe.
4.This transference of heat into the liquid creates a continuous circulation as long as the collector is heated by the sun.  


Feature
1.No water flowing inside the vacuum tube, no afraid of the freezing  winter and break, use it for a long life time.
2.The frame can be installed on the flat roof or inclined roof, easier and faster.
3.Design for the pressurized  system, link the collectors to operate center  hot water supply system.
 
 
Technical Parameters: 
Manifold(interior): Red copper 
Manifold(exterior): Aluminum alloy 
U Pipe: Diameter 8mm & thickness 0.6mm /red copper 
Aluminium fin: 1600/1300 mm full length 
Insulation layer: Pu foam/rockwood 50mm 
Vacuum tube: 58*1800mm/47*1500mm SS-CU-AIN/ALN coating 
Bracket: Aluminum alloy 1800/1500mm 0-50 degree 
Hail resistance: 25mm Max pressure: 6 bar Anti-freezing: > -35 degree Daily efficiency: ≥ 55%