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Apricus Solar Co., Ltd.

China Manufacturer with main products: Solar Water Heater, Solar Collector, Evacuated Tube, Heat Pipe, Heat Dissipator

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Evacuated Tubes


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Place of Origin: China

Specifications

Evacuated tubes are the absorber of the solar water heater. They absorb solar energy converting it into heat for use in water heating. Evacuated tubes have already been used for years in Germany, Canada, China and the UK. There are several types of evacuated tubes in use in the solar industry. Apricus collectors use the most common "twin-glass tube".

Length(nominal):1500mm/1800mm

Outer tube diameter:58mm

Inner tube diameter:47mm

Glass thickness:1.6mm

Thermal expansion:3.3x10-6 oC

Material:Borosilicate Glass 3.3

Absorptive Coating:Graded Al-N/Al

Absorptance:>92percentage (AM1.5)

Emittance:less than 8percentage (80oC)

Vacuum:P<5x10-3 Pa

Stagnation Temperature:over200oC

Heat Loss:less than0.8W/ ( m2oC )

 Maximum Strength:0.8MPa

Service Process

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