Solar Vacuum Tube

Specifications

high borosilicate glass,gradual change of ALN/AIN-SS/CU selective complex absorptive coating.

New Tri-element Vacuum Tube
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