Specification:
Absorption rate : 91% min
Heat radiation rate: 8%max (100 oC)
Vacuum degree: 5X10 -3pa
Stagnation temperature: 200 oC and >250 oC
Structure: All-glass concentric dual tube geometry
Glass material: Borosilicate glass 3.3
*Type I.:
Outer tube diameter and Thickness: dia.125mm, thickness.3mm
Inner tube diameter and Thickness: dia.110mm, thickness.3mm
Tube Length: 1800mm or upon buyer’s request
Life time: 15 years
Hailstone resistance: 2.5 cm dia.
Contact email: sonnecorp@yahoo.com.cn
