- Contact Person : Ms. Bai Allen
- Company Name : Haining Longfei Collector Tube Co., Ltd.
- Tel : 86-573-87887388
- Fax : 86-573-87887666
- Address : Zhejiang,haining,yuanhua town,haining city
- Country/Region : China
- Zip : 314416
Evacuated solar collector tube
solar evacuated tube collector parameter
Configuration | Gold purple solar collector tube | |
Glass thermal expansion coefficient | 3.3×10-6/°C | |
Diameter of outer tube | 58mm | |
Length of outer tube | 1600mm | 1800mm |
Diameter of inner tube | 47mm | 47mm |
Length of inner tube | 1565mm | 1765mm |
Thickness | 1.6mm | |
Transmittance of cover tube | 0.91 | |
Solar selective absorbing coating | Golden purple tube | |
Solar absorptance(AM1.5) | 0.9 | |
Emittance(80°C) | 0.05 | |
Stagnation Temperature | ≥200°C | |
Heat loss coefficient | ≤0.65 | |
Impact resistance | Withstand hailstone of 25 mm in diameter | |
Strength(pressure tested) | 1MPa | |
we do business on the basis of honesty, responsibility!And we accept small orders with an eye to our future business.
This is our Certificate:
Free samples will be sent on request.
Evacuated solar collector tube
