Product Name: Transition heat-pipe tube
Price: US$
Detail: Type 2 (Glass-Metal) tubes consist of a single glass tube. Inside the tube is a flat or curved aluminium plate which is attached to a copper heat pipe or water flow pipe. The aluminium plate is generally coated with Tinox, or similar selective coating. These type of tubes are very efficient but can have problems relating to loss of vacuum. This is primarily due to the fact that their seal is glass to metal. The heat expansion rates of these two materials. Glass-glass tubes although not quite as efficient glass-metal tubes are generally more reliable and much cheaper

Technical data table

Model tape
TT47
TT58

Length
1500mm
1800

Outer tube diameter
47mm
58mm

Inner tube diameter
37mm
47mm

Glass thickness
1.5mm
1.5mm

Glass Material
Borosilicate Glass 3.3
Borosilicate Glass 3.3

Absorptive Coating
AL/N/AL
AL/N/AL

Absorption coefficient
>92%
>92%

Emission coefficient
<8%
<8%

Vacuum
P<5x10-2Pa
P<5x10-2Pa

Stagnation Temperature
>220
>220

Net weight
1.53kg
2.77kg

Model tape
TT47
TT58

Length
1500mm
1800

Outer tube diameter
47mm
58mm

Inner tube diameter
37mm
47mm

Glass thickness
1.5mm
1.5mm

Glass Material
Borosilicate Glass 3.3
Borosilicate Glass 3.3

Absorptive Coating
AL/N/AL
AL/N/AL

Absorption coefficient
>92%
>92%

Emission coefficient
<8%
<8%

Vacuum
P<5x10-2Pa
P<5x10-2Pa

Stagnation Temperature
>220
>220

Net weight
1.53kg
2.77kg