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Solar Vacuum Tube (with heat pipe)

FOB Price: Get Latest Price
Min.Order Quantity: 5 Piece/Pieces
Supply Ability: 100000 Piece/Pieces per Month
Port: shanghai
Payment Terms: L/C,T/T
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Quick Details

Place of Origin:
ZHE,Zhejiang, China China (Mainland)
Vacuum Solar Collector
Solar Thermal
Brand Name:

Packaging & Delivery

Packaging Detail: Standard Export Packing
Delivery Detail: 15 days


Solar vacuum tube
.Competitive price and good quality
.5-15 years warranty
.OEM availabl

Solar vacuum tube working principle:
1. On heat-pipe collector, the condenser zone of the heat-pipe is inserted to the copper sleeves which are distributed on the water pipe averagely.
2. After the solar energy is absorbed by the vacuum tubes, it is transferred to the heat-pipe through the aluminum fin.
3. Heated by the energy, the medium in the heat-pipe is working and transferring the heat energy to the condenser zone.
4. When water or other medium in the water pipe flows across the copper sleeves, they would bring the energy and be heated.
5. The heated water or other medium makes water in the tank hotter and hotter by walking across the coils in the tank.

Solar vacuum tube features
1. Higher heat efficiency: Advanced heat transferring style of the heat pipe, excellent selective absorbent coating and perfect combination with high vacuum heat preservation
2. Wide applicable range: As the heat pipe has less heat capacity, it can be started quickly even under cloudy fine day and collect heat effectively. It can work normally even -30 below degree. As no water in the vacuum tube, it can effectively prevent lowing of heat efficiency due to frost cracking or scaling
3. Each individual tube can work independently, and the whole machine can still work if individual tube is damaged. The service life of the heat pipe can be longer than 15years.
4. The unique connection between the heat pipe and the vacuum tube can ensure both sealing and replace of damaged glass vacuum tube.


Solar water heat pipe specification:

Flow type

Heat pipe

Heat pipe material

T2 copper

Heat pipe size

Top condenser: Ø14* 1mm;    

Body: Ø8* 0.7mm

Tube diameter

φ47/1500mm or φ58/1800mm

Solar vaccum glass tube

High boron-silicon

Coating of absorber on glass tube

Al-N-Al,Copper,Stainless steel

fins around heat pipe

long Aluminum(1.68m)

Thickness of vacuum tube(mm)




Heat transfer liquid

Water, Anti-freeze Fluid (Water-Glycol)

Max working temp


Thermal Expansion

3.3x106° C


> 92%(AM1.5)


< 8% (80° C)

Heat Loss

< 0.8W / (m² ° C)

Maximum Strength


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Haining Sunfull Solar Technology Co., Ltd., located in Haining City, Zhejiang Province, is a hi-tech enterprise which is specialized in the research and manufacture of solar vacuum tubes, solar water heaters and solar collectors. With advanced technology and comprehensive facilities, we have reached an annual production capacity of 70,000 solar water heaters.

Our company has passed the certification of ISO9001:2000 international quality management system, and acquired CE and CCC approval on ... View detail

Basic Information

Product/Service (We Sell): Solar Water Heater,Vacuum Tube  
Number of Employees: 51 - 100 People  

Trade & Market

Main Markets: Western Europe
North America
Eastern Asia
Mid East
Southeast Asia
South America
Total Annual Sales Volume: US$2.5 Million - US$5 Million  
Export Percentage: 91% - 100%  

Factory Information

Number of Production Lines: 3  
Number of R&D Staff: 5 - 10 People  
Number of QC Staff: 5 - 10 People  
Contract Manufacturing: OEM Service Offered  

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How It Works

China (Mainland) | Manufacturer | Contact Details
Experience: Established 2009 , 2 years OEM

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