Solar Vacuum Tube

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Three layer solar collector tube

Three layer solar collector tube: high thermal efficiency, more durable for low temperature and high temperature. Its membrane layer at bottom is typically made of copper. Absorption layer and antiref

    1. Detailed information

    Three layer solar collector tube: high thermal efficiency, more durable for low temperature and high temperature. Its membrane layer at bottom is typically made of copper. Absorption layer and antireflective layer is compound of Nitrogen and aluminum, adding some component of stainless steel. Comparing to the general tubes, it maintains more efficient in heat preservation. Meanwhile, the chemical compound in the absorption layer is more pure than normal solar vacuum tube, thus possessing the more efficient 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

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

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