Solar Heat Pipe

Length                      1800mm

Outer tube diameter  58mm

Inner tube diameter  47mm

Glass thickness        1. 6mm

Thermal expansion  3. 3X10-6℃

Material                     borosilicate glass 3. 3

Absorbing coating      Graded Al-SS-CU

Absorptance              > 92%

Emittance                  < 8%

Vacuum                      P< 5X10-3 Pa

Stagnation temperature > 200℃

Heat loss                      0. 6~0. 7W/(m². ℃)

• vacuum tube
• Solar Collector
• Solar Water Project