Heat Pipe Vacuum Tube Solar Vacuum Tube With Heat Pipe Heat Pipe Solar Vacuum Tube

Solar Water Heater Accessories Three Elements Heat Pipe Vacuum Tube for Pressurized Solar Collector 58*1800

1). Structure: all glass concentric dual tube geometer
2). Glass material: borosilicate glass
3). Absorptance: >0.92
4). Emittance: <0.08 (80°C)
5). Vacuum: <5*10-3 Pa
6). Stagnation >230m2.°C/KW
7). Average heat loss: <0.8w/ m2.°C
8). Lifetime >15years
Type
Tri-element
Normal (Blue)
Length
1500mm/1800mm
1500mm/1800mm
Outer Tube Diameter
47mm/58mm
47mm/58mm
Internal Tube Dia
37mm
37mm
Weight
1.4kg/2.0kg
1.4kg/2.0kg
Glass Thickness
1.6mm/2mm
1.6mm/2mm
Material
Borosilicate glass 3.3
Borosilicate glass 3.3
Absorptive Coating
Grade ALN/AIN-SS/CU
Grade ALN/AL
Vacuum degree
P≤5.0*10-3 Pa
P≤5.0*10-3 Pa
Thermal Expension
3.3*10-6/ºC
3.3*10-6/ºC
Insulation
>200ºC
>200ºC
Absorptance
>95%
>93%
Emittance
4-6%
5-7.5%
Heat loss
0.4-0.6W/(m2 ºC)
0.6-0.8W/(m2 ºC)
Maximum strength
0.8Mpa
0.8Mpa
Resist cold
-35ºC
-35ºC
Resist hailstone
Φ25mm
Φ25mm
Resist wind
30m/s
30m/s
Start-up temperature
≤25ºC
≤25ºC
A perfect combination of the vacuum tube and the heat pipe.
1). Higher heat efficiency: advanced heat transferring style of the heat pipe, excellent selective absorb coating and perfect combination with high vacuum heat preservation.
2). Wide applicable range: as the SUNTASK heat pipe has less heat can be started quickly even under cloudy fine day and collect heat effectively. It can work normally even -30 below degree. As no water in the vacuum tube, it can effectively prevent lowing of heat efficiency due to frost cracking or scaling.
3). Each individual tube can work independently, and the whole machine can still work if individual tube is damaged. The service life of the heat pipe can be longer than 15 years.
4). The unique connection between the heat pipe and the vacuum tube can ensure both sealing and replace of damaged glass vacuum tube.