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single target vacuum tube

single target vacuum tube
single target vacuum tube
CategoriesSolar Vacuum Tube
AlbumView larger image
ModelILVT Series
TypeVacuum Solar Collector
ApplicationWater Heater
Pipe MaterialGlass
applicationhot water heating by sunpower
Unit PriceUS $ 2.3-5 / set
FOB portShanghai/Ningbo
Terms of PaymentWestern Union, T/T
Update Time2020-04-05
Detail Information

Technical Parameters



  All-glass double-tube co-axial structure

  Glass material

  High borosilicate 3.3 glass

  External pipe diameter and thickness

  Φ=47±0.7mm  &=1.6mm,  Φ=58±0.7mm  &=1.6mm,  

  Φ=70±0.7mm &=2.0mm

  Internal pipe diameter and thickness

  Φ=37±0.7mm &=1.6mm,  Φ=47±0.7mm  &=1.6mm,  

  Φ=58±0.7mm &=1.6mm

  Pipe length

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

Absorbing coating property



 Sediment method

  Single target magnetron sputtering plating

 Specific  absorption


 Emission ratio


  Vacuum tightness


  Idle sunning property parameters


 Solar irradiation   for obtaining a   preset

water   temperature





  Average heat loss coefficient



Working Principle

All-glass solar vacuum tube, connecting with water tank or manifold, when it works, cold water flows down into the vacuum tube, and there it is heated with solar energy absorbed by the coating outside of inner vacuum tube, the solar will be absorbed efficiently by the coating with little loss of heat because of the vacuum between the inner and outer glass tubes, and when cold water becomes hot, hot water will rise up to water tank or manifold because of the larger proportion to cold water, cold water again flows into solar vacuum tube for another heating process.


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