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    Hot sale 58mm * 1800mm solar vacuum tube

    Hot sale 58mm * 1800mm solar vacuum tube
  • Category:
    Solar Vacuum Tube
  • Browse number:
    449
  • Release time:
    2019-04-17 14:44:56
  • INQUIRY

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Technical data:


Model


58×1800


58x2100


47×1500


70×2100


Structure


Three goals


Outer tube diameter


58±0.7 mm


58±0.7 mm


47±0.5 mm


70±0.7 mm


Inner tube diameter


47±0.7 mm


47±0.7 mm


37±0.5 mm


47±0.7 mm


Outer tube thickness


1.6 ± 0.15 mm


1.8±0.15 mm


1.6 ± 0.15 mm


2.0±0.15 mm


Inner tube thickness


1.6 ± 0.15 mm


1.8±0.15 mm


1.6 ± 0.15 mm


1.8±0.15 mm


Tube length


1800±5 mm


2100 ± 5 mm


1500±5 mm


2100 ± 5 mm


Coating material


Copper, aluminum, stainless steel


Absorption rate


≥0.92


Emissivity


≤0.06


vacuum


Less than 5.2×10-4Pa


Outer tube transmittance


0.92


Stagnation temperature (height)


270~300°C


Heat loss coefficient


Less than 0.5 w / (m2 * ° C)


Carrying hail ability


30 mm steel ball, 450 mm high


Pressure resistance


1MPa


20GP / 40GP / 40HQ load


Seven thousand three thousand four hundred eighty


2,480, 4,460


Four thousand seven hundred and fifty thousand five hundred and fifty


Three thousand eight hundred and sixty thousand one thousand eight hundred


 


Hot sale 58mm * 1800mm solar vacuum tube in 2018


benefit:


1. The vacuum of the middle layer is 5.2x10-4, which effectively reduces the heat loss, guarantees the heat loss rate of 0.04-0.06, and guarantees the service life of 15 years.


2. The transmission performance is good (the transmission rate is increased by 5%) and it has self-cleaning function.


3. Using metal copper as the bottom metal layer, the absorption is strong, the heat loss is low, the heat loss rate is 50% lower than the ordinary vacuum tube, ULT≤0.5W/(m2·°C)


4. Fully automatic vacuum tube production line, advanced and strict testing process to ensure the overall quality is stable.


5. Stainless steel aluminum nitride in the absorption layer has high thermal stability, even if the glass melts, the coating will not fall off; stainless steel ions are used instead of aluminum, so that it has good high temperature resistance, aging, weakening and stagnation performance.


6. The proprietary technology developed by itself breaks the limits of graded coatings from -400 to 400.


RELATED PRODUCTS

  • 400-155-0538
  • xinyuan171171@163.com
  • Dawenkou Solar Energy Industrial Park, Taian City, Shandong Province
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