| Payment Type: | L/C,T/T,D/P |
|---|---|
| Incoterm: | FOB,CFR,CIF |
| Min. Order: | 100 Bag/Bags |
| Delivery Time: | 15 Days |
Basic Info
Model No.: 47*1500mm
Application: Water Heater, Solar Thermal, Air Conditioning System
Pipe Material: Glass
Pressurized: Non-Pressure
Product Description
Three-target solar vacuum tube
- Key component of solar collector and solar
water heater
- Coating material: Al-N/Al or SS-Al/N/Cu.
Specification
|
Absorbance rate after coating (AM1.5) |
α% |
≥94.5 |
|
Absorbance rate after evacuating (AM1.5) |
α% |
≥ 93.5 |
|
Emission rate after coating (80±5 °C) |
α% |
≤ 6 |
|
Emission rate after evacuating (80±5 °C) |
α% |
≤ 6.5 |
|
Stagnation parameter |
m² °C/kW |
≥ 240 |
|
Solar radiance exposure |
MJ/m² |
≤ 3.0 |
|
Average heat loss coefficient |
W/(m²°C) |
≤ 0.70 |
|
Selective coating material |
AL-N/AL, SS-AL-N/Cu |
|
|
Impact resistance |
Steel Ball Test: Steel ball with diameter of 30 mm fall on the evacuatedtube vertically from 450 mm height. |
|
|
Vacuum degree |
Pa |
≤ 3X10-3 |
|
Pressure |
Mpa |
0.6 |
|
Transparent (AM1.5) |
≥ 0.89 (ISO9806-1: 1994) |
|
Contact Person: Guo
Phone：86-531-88729112
Fax：86-531-88729223
Address: No. 30766 East Jingshi Road,Jinan,Shandong
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