1.Standard 3.3 high-boron-silicon glass-pipe
2.Low coefficient of heat loss
3.Good performance & price
4.15years warra
2.Low coefficient of heat loss
3.Good performance & price
4.15years warra
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Structure
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All-glass double-tube co-axial structure
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Glass material
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High borosilicate 3.3 glass
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External pip diameter and thickness
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Φ=47±1.0mm§=1.6mm±0.2mm
Φ=58±1.0mm§=1.8mm±0.2mm
Φ=70±1.5mm§=2.2mm±0.3mm
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Internal pip diameter and thickness
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Φ=37±0.8mm§=1.4mm±0.2mm
Φ=47±1.0mm§=1.6mm±0.2mm
Φ=58±1.0mm§=1.8mm±0.2mm
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Pipe length
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950mm 1500mm 1600mm 1700mm
1800mm 1900mm 2000mm 2100mm
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Absorptive coating property
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Structure
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Cu/SS-ALN(H)/SS-ALN(L)/ALN
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Sediment method
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3 target magnetron sputtering plating
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Specific absorption
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As =0.93~0.96 (AM1.5)
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Emission ratio
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εh =0.04~0.06 (80±5)
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Vacuum tightness
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P≤5.0×10-3Pa
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Idle sunning property parameters
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Y=260~300 m2.C/KW
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Solar irradiation for obtaining a preset water temperature
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H≤4.7MJ/m2(Φ58)
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H=3.7~4.2 MJ/m2
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H≤3.7MJ/m2(Φ47)
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H=2.9~3.2 MJ/m2
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Average heat loss coefficient
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ULT=0.4~0.6W/(m2.)
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