High Strength Evacuated Tube for Solar Collector

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1. The high strength evacuated tube for solar collector uses the standard 3.3 high quality borosilicate glass.
2. It has a low coefficient of heat loss.
3. This product achieves good performance and price ration.
4. We can guarantee a 15years warranty.
5. This high strength evacuated tube for solar collector achieves high efficiency.

Technical Specification

Tube structure		All-glass double-tube co-axial structure
Glass material		Borosilicate glass 3.3
Outer tube diameter and glass thickness		Φ=47±0.7mm thickness=1.6mm ±0.15mm Φ=58±0.7mm thickness=1.6mm ±0.15mm Φ=70±0.7mm thickness=2.0mm ±0.15mm
Inter tube diameter and glass thickness		Φ=37±0.7mm thickness=1.6mm ±0.15mm Φ=47±0.7mm thickness=1.6mm ±0.15mm Φ=58±0.7mm thickness=1.6mm ±0.15mm
Tube length		1200mm,1500mm,1600mm, 1800mm, 1900mm ,2000mm , 2100mm
Absorber coating	Coating material	Cu/SS-AIN
	Sediment method	Three targets magnetron sputtering plating
	Absorptivity	a:≥0.93(AM1.5)
	Emittance	ε≤6.5% (80℃±5℃)
Vacuum degree		P ≤5.0×10-3 Pa
Transmittance of glass tube		T:≥0.89(AM1.5 ISO9806-1:1994)
Stagnation parameter		Y :200~240 m2℃/kw
Average heat loss		ULT≤0.65W/(m2,℃)
Hail resistance		Φ25 mm
Pressure-endure		0.6 Mpa

Related Names
Vacuum Tube for Solar Collector | High Temperature Resistant Evacuated Tube | Solar Water Heating System Components

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