Gold Member Since 2006
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Zhejiang Shentai Solar Energy Co., Ltd.

Vacuum Tube Solar Water Heater, Evacuated Tube Solar Water Heater, Vacuum Tube Solar Geyser manufacturer / supplier in China, offering Vacuum Tube Solar Water Heater for South Africa (ST36-180), Non Pressure Solar Hot Water, Home-Use Solar Water Heater and so on.

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Supplier Homepage Product Non Pressure System Vacuum Tube Solar Water Heater for South Africa (ST36-180)

Vacuum Tube Solar Water Heater for South Africa (ST36-180)

FOB Price: US $329 / SET
Min. Order: 1 SET
Min. Order FOB Price
1 SET US $329/ SET
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Production Capacity: 5000sets/Month
Transport Package: Standard Carton Box or Wooden Box or Wooden Pallet
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: ST36-180
  • Pressure: Unpressurized
  • Collector Components: Glass Vacuum Tube
  • Assistant Tank Is Optional: 5L
  • Controller Is Optional: Tk-8A Can Feeding Water Automatic
  • Specification: ST15, 18, 21, 24, 30, 36-180
  • HS Code: 8419191000
  • Structure: Compact Type
  • Interior Material: Stainless Steel
  • Certification: CE, ISO9001, SABS
  • Electric Heater Is Optional: 1500W or 2000W
  • Trademark: SUNTASK
  • Origin: China
Product Description
Vacuum Tube Solar Water Heater for South Africa (ST36-180)


1. Designed for South Africa
2. Inner tank: SUS304 Stainless Steel, 0.4mm
3. Outer tank: PVDF 0.4mm
4. Frame: Galvanized steel, 1.5mm
5. Capacity: 150-360L
6. Heat preservation: 60-72h
7. Hail resistance: 25mm
Non-pressure solar water heater optional accessories
1. Assistant tank: 5L
2. Controller: TK-8A Can Feeding Water Automatic
3. Electrical heater: 1.5 /2 KW


1. Solar water heater system of all glass evacuated tube collector integrated with storage tank, are ideal for use in houses and other applications where cheap, reliable hot water supply is required. They are simple, economic and practical.
2. As the specific gravities of hot water and cold water are different, cold water goes downward and hot water goes upward.
3. When cold water in evacuated tubes is heated, it becomes lighter and goes to the water tank, while cold water in the tank goes down to the evacuated tubes
4. Through this circulation, the cold water in the water tank will be gradually heated.


Super Anti-erode outer tank: Outer tank is made by PVDF. Best anti-erode material. Especially for the seaside area, such as East South Asia etc.
Feeding water automatic: With special design, feeding water automatic, and ensure the outlet water as stable temperature.

1. Cheap and reliable solution, Simple structure, Easy installation
2. High efficiency
3. Withstands water pressure no more than 0.1MPa
4. Operated without any power supplying
5. Electric heater can be used as back up in rainy days
6. Hot water can be used directly, or can be used as a pre-heated
Storage Tank
Inner Tank SUS304-2B food grade stainless steel
Inner Tank Thickness 0.4mm
Outer Tank PVDF 0.4mm which is good at anti corrosion
Insulating Layer Polyurethance Foam 50mm
Vacuum Tube
Material of the glass tube Borosilicate glass
Absorptive Coating Grade ALN/AIN-SS/CU
Length of Outer Tube 1800mm
Length of Inner Tube 1755mm
Outer Tube Diameter 58mm
Inner Tube Diameter 47mm
Glass Thickness 1.6mm
Distance between two tubes  75mm
Thermal Expension 3.3*10-6/ º C
Absorption coefficient  95 ±  1 %
Thermal emsision coefficient 5  ±  1 %
Vacuum P ≤ 5.0*10-3 Pa
Stagnation Temperature >200 ° C
Average heat loss <0.8w/ m2. ° C
Maximum strength 0.8Mpa
Resist hailstone Φ 25mm
Resist wind 30m/s
Support Frame
Material Galvanized Steel 
Thickness 1.5mm
Angle 45 ° /38 ° /25 °
Lifetime 15 years

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