Product:Vacuum tube
Model Number:
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Description: Shentai Vacuum tube：All-glass evacuated solar collector tubes
High heat-collecting effciency:The vacuum magnetic- controlled sputtered aluminum nitrogenaluminum selective absorption coating has a solar absorptance≥0.93,a heat emittance≤ 6%,a low heat loss,and a good thermal-retention effect.
Good weather-resistance:It has a good all-year thermal efficiency and is able to withstand the front impact by the hail of a diameter below 25mm and a pressure 0.6MPa.
Long service life:ensures a service life of 15 years for the evacuated tube.
◆ Properties of all-glass evacuated solar collector tubes
| Item |
Measured value |
Specification in Chinese state standard |
| ptance of the solar selective absorbing coatings |
α≥0.931 |
α≥0.86(AM1.5) |
| Hemisphere emittance |
ε≤0.06 |
ε≤0.09(80±5℃) |
| Solar radiance exposure using sun as medium |
H≤ 2.639MJ/m2 |
H≤ 3.8MJ/m2 |
| ation parameter using air as medium |
Y≥240m2.℃ /Kw |
Y≥175m2.℃ /Kw |
| Average heat loss coefficient |
ULT≤ 0.78W/m2.℃ |
ULT≤ 0.9W/m2.℃ |
| Model |
Outer diameter/inner diameter(mm) |
Length(mm) |
Package |
| 1 |
58/47 |
2000 |
Carton |
| 2 |
58/47 |
1800 |
Carton |
| 3 |
58/47 |
1500 |
Carton |
| 4 |
47/37 |
1200 |
Carton |
| 5 |
47/37 |
1500 |
Carton |
| 6 |
47/37 |
1800 |
Carton |
| 7 |
47/37 |
1900 |
Carton |
◆ Three target vacuum pipe
New intervene film technology:utilize copper,aluminum and titanium three target film technology.
High heat efficiency:12% higher than common vacuum pipe Anti aging and attenuation:common vacuum pipe will be aged and attenuated in high temperature and shining condition (250℃).Three target vacuum pipe can bear 400℃,the life of the pipe is extended greatly.
Excellent heat preservation feature:Three target vacuum pipe utilize super fine copper mirror,hot water is available in not under minus 30 ℃ condition.The inner pipe cleaning and gas discharge has strictt procedure,vacuum layer is pure without impurity.Vacuum degtrr is high and heat loss is 65%.less than common vacuum pipe,frost crack will never happen.
Tag:Solar Water Heater,
Solar Collectors,
Flat solar collector
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