Model: | 58*47*1800 |
---|---|
Brand: | AT |
Origin: | Made In China |
Category: | Metallurgy , Mining & Energy / New Energy / Solar Energy |
Label: | solar tubes , solar collector tube , vacuum tubes |
Price: |
US $2.28
/ pc
|
Min. Order: | 500 pc |
Live Chat: | Last Online:16 Jul, 2014 |
Feature:
1 Quality warranty :15 years
2. Quickly thermal collecting efficiency.
3. It works fine under cold weather and area.
Three kind of solar collector:
1.Common :evacuated collector tubes.
2. High-efficiency: Three-target evacuated collector tubes: blue and black-golden
3. High-efficiency: Three-target evacuated collector tubes: dark-blue,purple-golden (purple and golden)
Solar evacuated collector tubes technical data:
Dimension |
Φ47 |
Φ58 |
Material of tubes |
3.3 high borosilicate |
3.3 high borosilicate |
Glass expansion ratio |
3.3±0.1X10-6 k-1 |
3.3±0.1X10-6 k-1 |
Outer diameter of tubes |
Φ47±0.7 |
Φ58±0.7 |
Inner diameter of tubes |
Φ37±0.7 |
Φ47±0.7 |
Thickness of glass |
1.6±0.15 |
1.6±0.15 |
Transmittance |
≥0.89 |
≥0.89 |
Selective coating |
SS-CU-AL-N/AL |
SS-CU-AL-N/AL |
Adsorptivity |
≥0.86(AM1.5) |
≥0.86(AM1.5) |
Emissivity |
≤0.080(80±5) |
≤0.080(80±5) |
Vacuum degree |
≤5.0 X 10-3Pa |
≤5.0 X 10-3Pa |
Collecting performance under sunshine |
≥190m2/kw |
≥190m2/kw |
Hailstone resistance |
25mm |
25mm |
Start up fast and collect solar energy fully
Unique super pure copper surface,allowing lower reflection and minimal heat loss.
High level vacuum ensure operation under cold weather.
Long time warranty to 15 years