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Feature:
High efficiency heat focus vacuum tube is made by the newest nanotechnology ,its absorb floor is made from copper, stainless steel and aluminium by the 12 -floor spatter plating technology. High boron silicon glass is chosen. By the gradually ss-c/cu selective complex coat, the vacuum tube have the high absorptance and low reflectance. The vacuum tube have the heat preservation effect because of its vacuum interlayer and its temperature can be up to 350ˇăC.
Specification:DY-VT A:
|
Length |
1500mm |
1800mm |
|
Outer tube diameter |
47mm |
58mm |
|
Inner tube diameter |
37mm |
47mm |
|
Weight |
1.3kg |
2.2kg |
|
Glass thickness |
1.6mm |
1.6mm |
|
Material |
Borosilicate Glass 3.3 |
Borosilicate Glass 3.3 |
|
Absorptive coating |
Graded A1/N/A1 |
Graded A1/N/A1 |
|
Vacuum degree |
P<5*10 -3 Pa |
P<5*10 -3 Pa |
|
Thermal expansion |
3.3*10 -6 /ˇăC |
3.3*10 -6 /ˇăC |
|
Insolation Temperature |
>200ˇăC |
>200ˇăC |
|
Absorptance |
>93% |
>93% |
|
Emittance |
<8% |
<8% |
|
Heat loss |
<0.8W/(m2ˇăC) |
<0.8W/(m2ˇăC) |
|
Maximum strength |
0.8Mpa |
0.8Mpa |
|
Resist cold |
-35 ˇăC |
-35 ˇăC |
|
Resist hailstone |
25mm |
25mm |
|
Resist wind |
30m/s |
30m/s |
|
Start-up temperature |
<=25ˇăC |
<=25ˇăC |