Shandong, China
Business Type:
Type of Ownership:
Foreign joint venture
OEM/ODM Service
Sample Available
Overseas Agent / Branch
Russian / Spanish / German / Japanese / Korean Speaker

All Glass Evacuated Tube, Solar Vacuum Tube, Glass Tube manufacturer / supplier in China, offering Three Target Solar Evacuated Glass Vacuum Tube, Blue Titanium Project Flat Panel Solar Collector, Swimming Pool Air Source Heat Pump and so on.

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Supplier Homepage Products Solar Vacuum Tube Three Target Solar Evacuated Glass Vacuum Tube

Three Target Solar Evacuated Glass Vacuum Tube

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Purchase Qty. / Reference FOB Price
100-999 piece US $3
1,000+ piece US $2
Payment Terms: L/C, T/T
Application: Water Heater, Solar Thermal, Air Conditioning System
Pipe Material: Glass

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Product Description

Three Target Solar Evacuated Glass Vacuum Tube
Three-target solar vacuum tube
- Key component of solar collector and solar water heater
- Coating material: Al-N/Al or SS-Al/N/Cu.


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)

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