Normal solarvacuum tube ：Its membrane layer at bottom is typically made of aluminum. Absorption layer and antireflective layer is compound of Nitrogen and aluminums ion.， which bears high thermal cond
Normal solarvacuum tube ：Its membrane layer at bottom is typically made of aluminum. Absorption layer and antireflective layer is compound of Nitrogen and aluminums ion.， which bears high thermal conductivity . And the membranous layer is about 0.3 micron.
Normal solar vacuum tube is very popular among solar tubes because it not only owns the mature production process, but also has the competitive prices.
Specification：
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Structure |
All-Glass Double Tube Co-Axial Structure |
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Glass Material |
High Borosilicate 3.3 Glass |
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External Pipe Diameter & Thickness |
dia.=47±0..5mm &=1.6mm, dia.=58±0.5mm &=1.6mm, dia.=70±0.5mm &=2.0mm, |
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Internal Pipe Diameter & Thickness |
dia.=37±0.7mm &=1.6mm, dia.=47±0.7mm &=1.6mm, dia.=58±0.7mm &=2.0mm, |
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Pipe Length |
800,1200,1500mm, 1600mm, 1800mm, 1900mm, 2000mm，2100mm |
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Absorptive Coating Property |
Structure |
Cu/SS-ALN(H)/SS-ALN(L)/ALN |
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Sediment Method |
Three Layer Magnetron Sputtering Plating |
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Specific Absorption |
as=0.93~0.96(AM1.5) |
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Emission Ratio |
0.04~0.06(80°C±5°C) |
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Vacuum |
P≤5.0×10-3Pa |
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Idle Sunning Property |
Y= 260 ~ 300m²°C/KW |
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Solar Irradiation for Obtaining a Preset Water Temperature |
H≤4.7 MJ/ m²(dia.58) |
H=3.7~4.2 MJ/ m² |
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H≤3.7 MJ/ m²(dia.47) |
H=2.9~3.2 MJ/ m² |
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Average Heat Loss Coefficient |
Ult=0.4~0.6W/( m².°C) |
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Pressure-Endure Ability |
0.6Mpa |
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Hail-Endure Ability |
30mm |
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Lifetime |
15years |
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Copyright © 2015 Haining Mayca Solar Energy Technology Co.,Ltd.
Professionally manufactures solar water heater,solar collector. All rights reserved.
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