Two-Ends-Open evacuated tube is double vaccum all glass tube, cold air blowed into at one end, heated by solar energy, hot air blowed out at the other end.
Data sheet of Hot Air solar collector (with Two-Ends-Open evacuated tube).
Model | AIR-20 | AIR-30 |
Dimensions | 1600*1867*160 mm | 2400*1867*160 mm |
Aperature area | 3 m2 | 4.5 m2 |
Air flow | 15 m3/h | 20 m3/h |
Weight | 45 kg | 65 kg |
Both sides open tube | Φ58*1800 mm | Φ58*1800 mm |
Tube quantity | Two-Ends-Open vacuum tube, 20 tubes | Two-Ends-Open vacuum tube, 30 tubes |
Tube material | High borosilicate glass 3.3 | High borosilicate glass 3.3 |
Frame material | Galvanized steel | Galvanized steel |
Insulation | Polyurethane 30mm | Polyurethane 30mm |
Hail resistance | 25 mm | 25 mm |
Working fluid | Air, water | Air, water |
Application | Air heating, room heating, desalination, drying, hot water | Air heating, room heating, desalination, drying, hot water |




