Changzhou Longquan Solar is an experienced and trustable manufacture in producing various solar products.such as solar water heater,solar collector,and vacuum tube.Perfect quality and good service are guaranted!
Specifications:
3.3 high boron silicone glass tube
Selective coating of vacuum tube: Al-N/Al or SS-CU- Al-N/Al
25mm hailstone resistance
Tube diameter:
Outer: 47 or 58mm
Inner: 37 or 47mm
Length of vacuum tube: 1,500 or 1,800mm
Thickness of glass tube: 1.6mm
Copper pipe length: 1,500 or 1,700mm
Copper pipe diameter: 8mm
Evacuated tube are the absorber of the solar water heater This type of tube is chosen for it's reliability, performance and low manufacturing cost