Solar Water Heater Part, Solar Vacuum Tube

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Vacuum Tube

• Model Number:
  interma-011
  
  
• Description:
  Product specialty:
  Apply for two layers 3.3 high borosilicon glass tube
  The two layers glass tube, with same axis is vacuumized between them, the vacuum degree can reach 5x10-2Pa.
  Coated with AL/N/AL selective absorbing coating material
  High absorbing efficiency: The vacuum magnetic -control sputtering selective absorptive coatings on the heat-collecting plates has a high absorption coefficient of more than 93%, and the emission coefficient around 6%.
  Long life: The life span can reach 15 years.
  High practicability: Able to endure impact of hail less than 25mm in diameter with high heat efficiency throughout the year.
  Technical data table:
  Model type Φ47x1.5m Φ58x1.8m
  Outside-tube diameter Φ47 Φ58
  Inner-tube diameter Φ37 Φ47
  Wall thickness 1.5mm 1.5mm
  Length 1.5mm 1.8mm
  Outside-tube diaphaneity 0.92 0.92
  Selective absorbing coating AL/N/AL AL/N/AL
  
  Absorbing coefficient 0.93 0.93
  Reflective coefficient 0.06 0.06
  Vacuum degree P≤5x10-2Pa P≤5x10-2Pa
  The highest temperature 250 250
  Anti-impact capability ≤Φ25mm (hail) ≤Φ25mm (hail)
  
• More Photo:
  
  
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