- Contact Person : Mr. Ma Edwin
- Company Name : Haining City Baoguang Heat Collection Tubes Co., Ltd.
- Tel : 86-573-87860877
- Fax : 86-573-87860677
- Address : Zhejiang,Email us: edwin4cnbg(at)hotmail.com,# 4 Yuanhua Industrial Zone,Haining City, Zhejiang 314416.China
- Country/Region : China
- Zip : 314416
solar collector tube
BAOGUANG Solar collector tube,widely used on both compact solar water heater and pressured heating systems.
Solar vacuum tube features:
1) Use material of borosilicate 3.3 glass.
2) Heat collector tube adopts magnetron sputtering coating technology3) Sediment gradual change selectivity absorbing coat (Cu/Ss- AL-ALN) has very high absorptivity and very low emissivity for sun ray.a) Sun absorptance: α≥0.93 (AM1.5)b) Emission ratio: ε≤0.06 (80+5°C)c) Temperature of open bask: ts≥220M2°Cd) Pressure of vacuum interlayer: p≤5 x 10-3Pae) Radiant exposure of close bask: H≤3.8MJ/sq.mf) Average heat waste coefficient: UIt≤.90W/ (M2°C)4) Can resist impact of hail 25mm and is suitable for cold area in winter
Heat pipe:
Item | Technical data |
Heat conduction coefficient | >99% |
Heat conduction speed | >200mm/s |
Axial temperature difference | 1-2/m |
Starting temperature | 20 |
Starting speed | 2min |
Working temperature range | 30~300 |
Life time | More than 10years |
wall thickness | 0.7mm |
solar collector tube
