solar vacuum tube(Certification:ISO9001-2000)

solar glass vacuum heat collection tube. 1.Certification:ISO9001-2000 2.High efficiency and reasonable price 3.Specifications

glass vacuum heat collection tube,solar heat collecting tube ,evacuated tube solar collector

1.Vacuum Tube

   1).External pipe diameter :47mm/58mm/70mm

       Internal pipe diameter:37mm/47mm/58mm

   2).Thickness:1.6mm/2.0mm

   3).Length:1500mm/1600mm/1700mm/1800mm/1900mm/2000mm/2100mm

   4).Material:high borosilicate 3.3 glass.

   5).Pass The Quality Supervision and Inspection

 2.HuaLi Solar Collector Features

   1).Highly efficient absorber ,daily average efficiency over 50%

   2).Can be used all years round in the climate

   3).Low heat loss

   4).Stable coating plating technology

   5).High heat resistanceand high cold resistance.

(Certification:ISO9001-2000)

solar vacuum tube(Certification:ISO9001-2000)