Haining Tong Hua Import & Export Co., Ltd.
Main products:LED light,solar water heater,Energy saving light,Solar machinery,pvc panel/floor
Contact Us
  • Contact Person : Ms. Gao Cindy
  • Company Name : Haining Tong Hua Import & Export Co., Ltd.
  • Tel : 86-573-87832229
  • Fax : 86-573-87832227
  • Address : Zhejiang,Haining,Room 0705#, China Commerce Building, No. 100, Worker Road
  • Country/Region : China
  • Zip : 314400

Three Target Solar Vacuum Tube

Three Target Solar Vacuum Tube
Product Detailed
heat pipe evacuated tube 1.long lifetime for 15 years 2.pressurized 3.certification:CE,ISO9001 4.copper pipe in the tube

Three Target Solar Vacuum Tube


Using high borosilicate 3.3 glass, the thickness and diameter of the raw material reach the national standard.The time of sputtering plating is up to 45 mimutes, the retia is at least 12 layers.Advanced vacuumizing craftwork, strictly exhausting under 450 centigrade temerature of 60 minutes, the vacuum tube can be 5*10-4 Pa.High absorptivity and low emittance.Inteference film technology replaces traditional gradual-changed film technology.The gradual-changed film is a low retia adopted by many manufacturers  so far.But the inteference film is a best vacuum tube coating  which has the newest plating technology and the best effect of absorptance sun energy in the current world.Having three "highs".they are high temperature resistance,high cold resistance and high heat efficiency(contrast to the single target vacuum tube ,its absorptivity has improved 5%~7%)In the event of same capacity and sunshine,it can output more and hotter water than single target vacuum tube.The coating won't fall down,not run,not aging,don't be afraid of idle sunshine,antidecrease.Also it can resist super cold,product hot water normally under -30 centigrade.

Technical Parameter:


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 &=1.6mmdia.=70±0.5mm &=2.0mm

Inter Pipe Diameter & Thickness

dia.=37±0.5mm &=1.6mm  dia.=47±0.5mm &=1.6mmdia.=58±0.5mm &=1.6mm

Pipe Length


Absorptive Coating Property

StructureSediment MethodSpecific AbsorptionEmission Ratio


Single Layer Magnetron Sputtering Platingas=0.92~0.96(AM1.5)0.01~0.03(80°C±5°C)


P 2.0*10-3Pa

Idle Sunning Property


Solar Irradiation forObtaining a Preset Water Temperature

H 4.7MJ/(DIA.58)  H=3.7-4.2MJ/H 3.7MJ/(DIA.47)  H=2.9-3.2MJ/

Average Heat LossCoefficient


Pressure-Endure Ability


Hail-Endure Ability




Three Target Solar Vacuum Tube

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