Solar Vacuum Tube

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Solar vacuum tube

Solar vacuum tube can be classified into three categories according to the crafts: Normal Solar Vacuum Tube, Three Layer Solar Vacuum Tube and Purple Golden Solar Vacuum Tube.Comparing with Normal Sol

    1. Detailed information

    Solar vacuum tube can be classified into three categories according to the crafts: Normal Solar Vacuum Tube, Three Layer Solar Vacuum Tube and Purple Golden Solar Vacuum Tube.

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    Comparing with Normal Solar Vacuum Tube, Purple Golden Solar Vacuum Tube has the different membrane structure, which contains Infrared-reflection layer, Absorbance layer and Anti-reflection layer. What’s more, there are two layers in Absorbance layer, which contributes to the higher absorptive ratio and lower emission ratio. It has the very excellent efficiency of absorbing the heat.

    Purple Golden Solar Vacuum Tube is made on the basis of Three Layer Solar Vacuum Tube, the difference lies in the color of coating material on outside tube. Besides, the time of metallic-membrane plating is comparatively longer than others, the chemical compound in the absorption layer keeps very pure, which invariably leads to the high absorption rate.

    Specification:

    Structure All-Glass Double Tube Co-Axial Structure
    Glass Material High Borosilicate 3.3 Glass
    External Pipe Diameter & Thickness
     
    dia.=47±0..5mm  &=1.6mm,    dia.=58±0.5mm  &=1.6mm,
    dia.=70±0.5mm  &=2.0mm,  
     
    Internal Pipe
    Diameter & Thickness
    dia.=37±0.7mm  &=1.6mm,    dia.=47±0.7mm  &=1.6mm, dia.=58±0.7mm  &=2.0mm,
    Pipe Length
    800,1200,1500mm, 1600mm, 1800mm, 1900mm, 2000mm,2100mm
    Absorptive Coating Property Structure Cu/SS-ALN(H)/SS-ALN(L)/ALN
    Sediment Method Three Layer Magnetron Sputtering Plating
    Specific Absorption as=0.93~0.96(AM1.5)
    Emission Ratio 0.04~0.06(80°C±5°C)
    Vacuum P≤5.0×10-3Pa
    Idle Sunning Property Y= 260 ~ 300m²°C/KW
    Solar Irradiation for Obtaining a Preset Water Temperature H≤4.7 MJ/ m²(dia.58) H=3.7~4.2 MJ/ m²
    H≤3.7 MJ/ m²(dia.47) H=2.9~3.2 MJ/ m²
    Average Heat Loss Coefficient Ult=0.4~0.6W/( m².°C)
    Pressure-Endure Ability 0.6Mpa
    Hail-Endure Ability 30mm
    Lifetime 15years

     

    Solar hot water system

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    Professionally manufactures solar water heater,solar collector. All rights reserved.

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