Qingdao Shagang Solar Equipment Coperation

Company Description

VACUUM SOLAR TUBE is Qingdao Shagang Solar Equipment Coperation leading products.
The company strives to become a professional manufacturer and  supplier of excellent rough tubes,vacuum heart-collecting tubes and solar power hearts.And in 2005,Through ISO9001:2000and ISO14001:2004 system authentication.
Features as follow:
1.Structure All-glass-coaxial double-layer tubes
2.Outer Tube thickness 1.6mm ,Inner tube thickness 1.6mm .
3.Material of coating :Al N/Al N-SS/Cu .
4.Absorptance 0.94~0.96 Emittance 0.04~0.06 .
5.Transmittance of Outer Tube : 0.91 .
6.Stagnation temperature (height) : 270~300C .
7.Bearing hailstone ability : hailstone diameter 25mm
8.Pressure-endure ability 1MPa