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You are here: Home > Products > Solar Vacuum Tube

Three Target Vacuum Tube

Vacuum Tube Characteristics: Vacuum tubes assimilate the advanced 12 layers of spattering deposition of trivalent technology, high borosilicate glass, gradual change of ALN/AIN-SS/CU selective complex absorptive coating.Ang these make vacuum tubes have high performance of absorption and low...

    Detailed description

    Vacuum Tube

    Characteristics:

    Vacuum tubes assimilate the advanced 12 layers of spattering deposition of trivalent technology, high borosilicate glass, gradual change of ALN/AIN-SS/CU selective complex absorptive coating.Ang these make vacuum tubes have high performance of absorption and low reflection ratio. Through the interlayer, vacuum has a unique effect of thermo, with its temperature up to 380℃ of idle sunning, performing a strong heating ability.

    Technical Parameters:

    Tube structure

    All-glass double deck co-axial structure

    Glass material

    High Borosilicate 3.3 glass

    Outer tube diameter and glass thickness

    φ47±0.7mm; Glass thickness 1.6±0.15mm


    φ58±0.7mm; Glass thickness 1.6±0.15mm


    φ70±0.7mm; Glass thickness 1.6±0.15mm

    Inner tube diameter and glass thickness

    φ37±0.7mm; Glass thickness 1.6±0.15mm


    φ47±0.7mm; Glass thickness 1.6±0.15mm


    φ58±0.7mm; Glass thickness 1.6±0.15mm

    Tube length

    800mm, 1200mm, 1500mm, 1600mm, 1800mm, 1900mm, 2000mm, 2100mm, etc

    Absorption coating property

    Coating material

    CU/SS-ALN(H)/SS-ALN(L)/ALN


    Sediment method

    Three target magnetron spattering plation


    Absorptive ratio

    a=0.92-0.96(AM1.5)


    Emission ratio

    e=0.04-0.06 (80℃±5℃)

    Vacuum degree

    P≤5.0x10-3 (PA)

    Stagnation temperature (temperature inside of empty evacuated tubes

    260-350℃

    Average heat loss

    ULT0.4-0.6W/(㎡*℃)

    Hail resistance

    φ30mm

    Pressure-endure

    1Mpa


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