solar thermal vacuum tube home system

solar thermal vacuum tube energy
1. ISO900:2000, CE certificate
2.high absorption,low emission
3.Available in various size

solar vacuum tube,solar collector

-----offer OEM service/15years lifetime


Using three targets in DC magnetron sputtering technology based on the reaction, rare metals, improve the target, vacuum coating structure of working temperature can reach 500 degrees Celsius, service life is longer. Compared with common vacuum tubes, this product has high temperature, high absorptivity of 96% (heat), low loss (4%) can be low to the advantages in alpine environment,REGA thermal effect also significantly.
At the same time, the international leading microwave purple golden vacuum technology and craft, in 49 ° C for 50 minutes of strict exhaust, automatic getter evapotranspiration process, heat loss. Vacuum for 15 years, maintain gas molecules to avoid tube heat insulation, significantly.

Tube structure
All-glass double deck co-axial structure
Glass material
High borosilicate 3.3 glass
Outer tube diameter and glass thickness
Ø47±0.7mm Glass thickness 1.6±0.15mm
Ø58±0.7mm Glass thickness 1.6±0.15mm
Ø70±0.7mm Glass thickness 2.0±0.15mm
Inner tube diameter and glass thickness
Ø37±0.7mm Glass thickness 1.6±0.15mm
Ø47±0.7mm Glass thickness 1.6±0.15mm
Ø58±0.7mm Glass thickness 1.6±0.15mm
Tube length
800mm,1200mm,1500mm,1600mm,
1800mm,1900mm,2000mm,2100mm etc
Coating material
Sediment method
Absorptivity
Emission ratio
CU/SS-ALN(H)/SS-ALN(L)/ALN
Three Target magnetron sputtering plating
Absorptivity:α =0.93~0.96 (AM1.5) Emission: ε=0.04~0.06(80°C±5°C)
Vacuum degree
P≤5.0X10 -3 (PA)
Stagnation temperature (temperature inside of empty evacuated tubes)
260~300 °C
Average heat loss
ULT 0.4~0.6 W/(m2 *°C)
Hail resistance
Ø25 mm
Pressure-endure
1MPa