SFVA series - All-glass Evacuated Solar Collector Tube
All-glass evacuated solar collector tubes perform very well in overcast conditions as well as low temperatures
| Place of Origin |
China |
Model Number |
SFVA |
| Price Terms |
FOB, CIF |
Brand Name |
Sunlight |
| Payment Terms |
T/T, L/C |
Minimum Order |
10 PCS |
| Supply Ability |
120,000pcs/month |
Delivery Lead Time |
20 days |
| Features: Technical Specifications |
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 /°C |
3.3*10 -6 /°C |
Insolation Temperature |
>200°C |
>200°C |
Absorptance |
>93% |
>93% |
Emittance |
<8% |
<8% |
Heat loss |
<0.8W/(m2°C) |
<0.8W/(m2°C) |
Maximum strength |
0.8Mpa |
0.8Mpa |
Resist cold |
-35 °C |
-35 °C |
Resist hailstone |
Ø 25mm |
Ø 25mm |
Resist wind |
30m/s |
30m/s |
Start-up temperature |
<=25°C |
<=25°C |
Item No. |
Specification |
Diameter of solar tube |
Length of solar tube |
SFVA4715 |
Ø47mm |
1.5M |
SFVA5818 |
Ø58mm |
1.8M |
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