1.provide different sizes of solar tubes. 2.fifteen years experience to produce. 3.there are 300 productlines in the factory.

Characteristics

Vacuum tubes assimilate the advanced 12 layers of spattering deposition of trivalent technology,high borosilicate glass,gradual change of ALN/AIN-SS/CU selective complex absorptive coating.Ang these make vacuum tubes have high performance of absorptance and low reflection ratio.Through the interlayer,vacuum has a unique effect of thermo,with its temperature up to 380°C of idle sunning,performing a strong heating ability.

Technical Parameters

1)     Structure  all glass concentric dual tube geometer

2)     Glass material   borosilicate glass

3)     Coating: Grated SS-C/CU

4)     Absorptance  >0.92

5)     Emittance <0.08(80°C)

6)     Vacuum  <5×10-3 Pa

7)     Stagnation  >230m2. °C/KW

8)     Average heat loss  <0.6w/m2. °C

9)     Lifetime  >15 years

Type	Diameter(mm)	Length(mm)
47*1500mm	47	1500
58*1800mm	47	1800

Solar Collector Vacuum Tube