high quality solar water heater/ solar collector tube

single target solar collector tube:
1.High efficiency,high quality.
2.ensure operation in winter
3.15years' warranty for tub

we do business on the basis of honesty, responsibility!
Solar Vacuum Collector Tube:
1.High efficiency,high quality.
2.ensure operation in winter
3.15years' warranty for tube
4.accept small orders with an eye to our future business.

Solar Vacuum Collector Tube technology:
Material apply for high 3.3 borosilicate glass
Models Φ47/Φ58/Φ70
Structure all-glass-coaxial double-layer tubes
outer tube diameter 47±0.7mm &=1.8mm
58±0.7mm &=1.8mm
70±0.7mm &=2.0mm
inner tube diameter 37±0.7mm &=1.8mm
47±0.7mm &=1.8mm
58±0.7mm &=2.0mm
Length: 800/1200/1500/1600/1800/1900/2000/2100mm.
Absorptance 0.93~0.96
Emittance 0.04~0.06(80°C ±1.5°C)
Transmittance of outer tube 0.91
Stagnation temperature(height) 280~300°C
Pressure-endure 1Mpa
Stable advanced coating up to 380

We can also provide products as your request.