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

Heat Pipe For Solar Water Heater

Heat Pipe For Solar Water Heater
Product Detailed
Heat pipe vacuum tube 1)High absorbance 2)Resist the frozen weather 3)Long life

Heat Pipe For Solar Water Heater  


1) High heat effectiveness: higher than all glass solar vacuum tube by 15%

2) heat pipes    conduction: successfully prevents the defects of tube breakage and low power output caused by water fouling and deposits or dust and sand

3) Prevents the tube from being easily broken caused by volume expansion when water freezes in the frigid season

4) Low thermal capacity makes the tube start up quickly

5) Energy output within only 2 minutes of sunshine

6) Insulation temperature can reach 250degrees, average heat efficiency can still be more than 50%; even under 50degrees

7) High efficient selective absorptive coatings and vacuum heat insulation technology ensure the tube has higher heat output in cloudy weather and in moist areas, especially in winter

8) Solar collecting plate is sealed inside a high quality borosilicate glass tube with 5 x 10-3Pa of vacuum, to stop corrosion; even in moist conditions



Metal-glass evacuated solar collector tube consists of a triple target coating tube and aflat or curved aluminum plate inside attached to a copper heat pipe.



Technical Parameter:


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

500mm 850mm 1200mm 1500mm 1600mm 1700mm 1800mm 1900mm 2000mm  2100mm

Absorptive coating property



Sediment method

3 target magnetron sputtering plating

Specific absorption


Emission ratio


Vacuum tightness


Idle sunning property parameters

260~300 m².°C /KW

Solar irradiation for obtaining a preset water temperature

H≤4.7MJ/ m²(Φ58)

H=3.7~4.2MJ/ m²

H≤3.7MJ/ m²(Φ47)

H=2.9~3.2MJ/ m²

Average heat loss coefficient


Resistant Hail


Life aged

15 years

Heat Pipe For Solar Water Heater

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