70mmx1900mm heat pipe vacuum tube
70mmx1900mm heat pipe vacuum tube 1.10 year garantee 2.USD15.5.00/PC 3.TT or LC 4.MOQ: 10 PCS
China Hitek Solar Co., Ltd.
vacuum tube
Certificate:EN-1295/Solar keymark/DIN/SRCC
Warranty: 10years
| absorber material | Aluminium | |
| thickness of aluminium absorber | 0.60mm | |
| width of aluminium absorber | 62mm | |
| surface treatment | SS-ALN/CU | |
| absorptance | ≥96% | |
| emittance | ≤5% | |
| heat transfert fluid content (L) | 0.884L | |
| flow pattern | Serial | |
| diameter absorber tubes (mm) | 70mm | |
| no. of absorber tubes | 10 | |
| distance between absorber tubes (mm) | 30mm | |
| dimension of the header (mm) | 14*75mm | |
| length of tube | 1848mm | |
| Transparent cover | 2.0mm Borosilicate galss 3.3 | |
| glass thermal expansion (/°C) | 3.3x10-6°C | |
| vacuum (Pa) | ≤5×10-4Pa | |
| stagnation temperature (°C) | >250°C | |
| freezing resistance | >-35°C | |
| hail resistance (diameter) | 35mm | |
| max. operating pressure (bar) | 8bar | |
| allowed heat transfer fluid | Water-glycol | |
| nominal flow rate per collector | 80L/h | |
| pc/carton | 10pcs tube/ctn |
| carton size (mm) | Tube: 1890mm*508mm*228mm |
70mmx1900mm heat pipe vacuum tube
