1.High solar-thermal conversion and low heat loss 2.Stable advanced coating up to 380 3.warranty to 15years 4.MOQ:10 pieces

High quality solar vacuum tubes :

1.High solar-thermal conversion and low heat loss2.Stable advanced coating up to 380 °C 3.Long time warranty to 15years

4.High level vacuum ensure operation under cold weather

Length	1800mm
Outer tube diameter	58mm
Inner tube diameter	47mm
Material	Borosilicate Glass 3.3
Absorptive coating	AL-N/AL  CU-SS-N/AL
Absorptance	≥ 0.93
Vacuum	P ≤ 5*10
Stagnation temperature	≥ 250 °C

 

 

high quality solar glass vacuum tubes