Description:

1.  Frame of the collector: Aluminium profile powder coated for maximum protection in seaside areas.

2.  Absorbing surface:  Aluminium surface with blue titanium high selective treatment with high absorption and low emission (α=95%, ε=4%), laser welded on the copper water frame.

3.   Transparent cover: Security-Tempered solar glass with Antireflective coating, for maximum protection against extreme weather conditions and temperature changes, maximum solar transmittance and minimum solar reflection.

4.   Header of water frame: Copper tubes Ø22, which is welded to the serpentines with hard silver solder. Each water frame is tested at the pressure of 15 bars. Headers are punched with upper expansion for perfect fitting with the serpentines and minimum pressure drop in the collector.

5.   Meander: Double serpentine, Copper tube in diameter Ø8mm.

6.   Thermal insulation: 50mm thick layer of prepressed mineral wool special for solar panels for minimum thermal loss. Thermal conductivity: 0=0.035 W/m°K (EN 13162) and heat capacity 0.84 kJ/kgK.

7.   Back cover: Aluzinc 0,4mm thick. Aluzinc stands for aluminium and zinc, fused in almost equal proportions, as a coating for the steel sheet that is coated with a silvery spangle composed of Aluminium (55%), Zinc (43,4%) and a touch of Silicon (1,6%). Great mechanical strength and 7 times more resistant to corrosion than common galvanized steel.

8.   Sealing materials: For perfect waterproof finish and proper ventilation of collectors casing, all materials used (EPDM, polyurethane sealant, silicon air vents and silicon header flanges) resist to extreme weather conditions and temperature changes.