|
Length (nominal)
|
1500mm /1800mm
|
|
Outer tube diameter
|
58mm
|
|
Inner tube diameter
|
47mm
|
|
Glass thickness
|
1.6mm
|
|
Thermal expansion
|
3.3x10-6 oC
|
|
Material
|
Borosilicate Glass 3.3
|
|
Absorptive Coating
|
Graded Al-N/Al
|
|
Absorptance
|
>92% (AM1.5)
|
|
Emittance
|
<8% (80oC)
|
|
Vacuum
|
P<5x10-3 Pa
|
|
Stagnation Temperature
|
>200oC
|
|
Heat Loss
|
<0.8W/ ( m2oC )
|
|
Maximum Strength
|
0.8MPa
|
Evacuated vacuum tubes are the absorber of the solar water heater.
| Delivery Time: | 15 days |
| Package: | carton |
| Minimum Order Quantity: | 1 Set/Sets |
| Payment Terms: | T/T,L/C at sight |
| Port: | Shanghai |
| Pipe Material: | Glass |
| Type: | Vacuum Solar Collector |
| Brand Name: | ejaisolar or OEM |
| Place of Origin: | Zhejiang China (Mainland) |