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Metal Glass Heat Tube
2018/12/26 22:01:29 Viewers:
- BrandSunpark
- Type70x1900,70x2100
Introduction
Features:
1).This is Full Vacuum Tube with Direct Flow Pipe.
2).High heat efficiency, 15% higher efficiency than normal vacuum tube.
3).The direct flow pipe is made up by two concentric single-wall-tubes.
4).Cold water follows through the inner tube from upside down and flows out to the collector from the bottom through the space between the inner & outer tube,
taking the heat made by the absorber
5).It could be installed at any angle, even horizontally, while normally heat pipe tube should be installed at 30°-90°
Detail of specifications:
| Type | DF 70/1700 | DF 70/1900 |
| Weight | 2.29 kg | 2.55 kg |
| Installation angel | 0° – 90° | |
| Dimension | Ø70 mm x 1700 mm | Ø70 mm x 1790 mm |
| Heat pipe | Inner copper pipe: Ø 8 mm,Outer copper pipe: Ø 15 mm | |
| Absorber material | Copper;Thickness: 0.6 mm | |
| Selective coating | SS-AlN-CU;Absorptance: a > 0.92;Emittance: ε < 0.08 | |
| Glass tube | material :Borosilicate glass, Thickness: 2 mm | |
| Vacuum | < 10-8 bar | |
| Min. ambient temp. | -50°C | |
| Stagnation temp. | 300°C | |
| Resistance to hail | Ø35mm | |
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