solar heater tube to syria
Product Detailed
solar heater tube to syria
CE ISO9001
best quality testing
solar heater tube to syria
Specifications(single layer)
| ||
Structure | All-glass double-tube structure | |
Glass material | Borosilicate glass 3.3(Li nuo) | |
thickness | 1.6mm
| |
diameter | Outer tube | 70/58/47mm |
Inner tube | 58/47/37mm | |
Length | 2100/2000/1800/1500mm | |
Solar absorbing layer | Structure | AL/ALN |
Coating method | 1 target magnetron sputtering coating | |
Absorption ratio | 0.90~0.91 | |
Emission ratio | 0.09~0.10 | |
Vacuum tightness | 5.0×10-3Pa | |
heat loss | 0.6~0.7W/(m².°C) | |
Resist Hail | Φ25mm | |
Resist cold | -20°C | |
Resist high temperature | 250 °C | |
Life | 15 years | |
Warranty | 6 years |