purple target solar vacuum Tube in New style

1. High efficience performance
2. Certificate:CE,ISO,CCC
3. OEM provide
4. Good quality



We are a manufacturer about solar vacuum tube in zhejiang in1998 .So our product have a big promote and the
absorptivity could arrive 0.96 higher than
National standards
then our company is only an hour away from shanghai.
Excellent performance of absorbing, but low heat loss, Especially adapted to sever cold regions,(super heat preservation).
This is purple ,we have two color for three-target solar tubes-blue and purple

1.
Excellent resistance of burst.
2. Excellent resistance of corrosion, long life span ( up to 15 years)
3. Reducing the fouling on the tube wall, keeping water clean.
This is the detail of solar tube in our company

Tube structure
Borosilicate 3.3 glass
External pipe diameter and thickness
Φ=47±0.7mm &=1.6mm
Φ=58±0.7mm &=1.6mm
Φ=70±0.7mm &=1.6mm
Internal pipe diameter and thickness
Φ=37±0.7mm &=1.6mm
Φ=47±0.7mm &=1.6mm
Φ=58±0.7mm &=1.6mm
Tube lenghth
from 1.2 to 2.1
Sediment method
Three-Targets magnetron sputtering plating
Absorptivity
0.93-0.96(AM1.5)
Emittance
<=7.5%(75-80°C)
Stagnation parameter
200-240
Average heat loss
0.65-0.75

Evacuated tubes are aligned in parallel, the angle of mounting depends upon the latitude of your location. In a North South orientation the tubes can passively track heat from the sun all day. In an East West orientation they can track the sun all year round