heat pipe vacuum tube
1. testing equipment imported from Germany
2. automated production mode
3. high quality, low price
heat pipe vacuum tube
CCC, CE, ISO9001 Certificate
Features
It can withstand pressure of tap water when it works
Without incrusting, long usage life
One or several glass tubes broken will not fluence system work
Tubes can be laid for long time under the sun without water in the tank
No worry about being frozen because there is no water running inside the tubes when working
Specification
Structure: Two concentric borosilicate glass tubes
Material: Borosilicate glass 3.3, heat pipe
Outer tube diamete: Φ58
Inner tube diameter: Φ47
Length: 58-1800mm
Coating: Triple-target
Glass thickness: 1.6mm/1.8mm/2.0mm
Vacuum degree: P<5*10-3Pa
Thermal expansion: 3.3*10-6/°C
Insolation temperature: >200°C
Absorptance: >93%
Emittance: <5%
Heat loss: <0.8W(m2°C)
Maximum strength: 0.8Mpa
Resist cold: -35°C
Resist hail: 25mm/30mm/35mm
Resist wind: 30m/s
Start-up temperature: <=25°C
Lifetime: 15 years
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