Ordinary Solar Evacuated Tube advantage
work in overcast days in cold weather,tubes can be installed &replaced individually,OEM
Price Terms:FOB,CIF,EXW
Payment Terms: T/T,Western Union,MoneyGram,L/C
Minimum Order: Negotiatable
Delivery Port: Customized
Contact Supplier
Packaging Detail: Carton box
Delivery Detail: 3 working days for sample 7 working days for 20' & 40' container
Ordinary Solar Evacuated Tube Data
| Length | 1500mm | 1800mm |
| Outer Tube Diameter | 47mm | 58mm |
| Inner Tube Diameter | 37mm | 47mm |
| Weight | 1.3kg | 2.2Kg |
| Glass thickness | 1.6mm | 1.6mm |
| Material | High Borosilicate glass 3.3 | High Borosilicate glass 3.3 |
| Absorptive coating | Graded Al/N/Al | Graded Al/N/Al |
| Vacuum Degree | P<5*10 -3 Pa | P<5*10 -3 Pa |
| Thermal Expansion | 3.3*10 -6 /°C | 3.3*10 -6 /°C |
| Insolation Temperature | >200°C | >200°C |
| Pipe Material | Red Copper | Red Copper |
| Absorptance | >93% | >93% |
| Emittance | <8% | <8% |
| Heat loss | <0.8W/(m2°C) | <0.8W/(m2°C) |
| Maximum Strength | 0.8Mpa | 0.8Mpa |
| Resist Hailstone | 30m/s | 30m/s |
| Resist cold | Ø 28mm | Ø 28mm |
| Resist wind | 30m/s | 30m/s |
| Start-up Temperature | <=25°C | <=25°C |
| Series Type | Integration of industry, trade, |
Specification
Since Evacuated glass tube technology was invented, solar energy can be changed to heat energy efficiently throughout all four seasons. Solar exposure can be turned to heat regardless ambient temperature of the collectors. Longquan solar Collectors using German design in the tubing and Sydney University coating technology for the absorbing surface.
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