Zhejiang, China
Business Type:
Manufacturer/Factory & Trading Company
Year of Establishment:
Annual Revenue:
7.51 Million USD
Main Markets:
South America, Europe, Africa
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Solar Geyser, Vacuum Tube Solar Geyser, Vacuum Tube Solar Water Heater manufacturer / supplier in China, offering Suntask123 Low Pressure Vacuum Tube Solar Geyser (ST), Flat Plate Solar Hot Water Heater (SPH) for Overheating Protection, Solar Hot Water Systems (A9H Model) and so on.

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Supplier Homepage Products Non Pressure System Suntask123 Low Pressure Vacuum Tube Solar Geyser (ST)

Suntask123 Low Pressure Vacuum Tube Solar Geyser (ST)

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $95/ Piece
Production Capacity: 5000sets/Month
Transport Package: Cartons /Wooden Pellet /Wooden Box
Payment Terms: L/C, T/T, Western Union
Max. Capacity: >200L
Structure: Compact Type
Pressure: Unpressurized
Interior Material: Stainless Steel
Collector Components: Glass Vacuum Tube
Composition: Tank Insulation

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Basic Info

Model NO.: ST
Certification: CE, ISO9001, CCC
Vacuum Tubes: 58mm X 1.8m
Outer Tank: PVDF, 0.4mm
Inner Tank: SUS304 Non Pressurized, 0.4mm
Bracket: Galvanized Steel, 1.5mm
Assistant Tank Is Optional: 5L
Electric Heater Is Optional: 1500W /2000W
Controller Is Optional: Tk-8A Can Feeding Water Automatic
Warranty: 3 Years
Trademark: Suntask / OEM
Specification: ST10, ST15, ST20, ST30
Origin: China
HS Code: 8419191000
Suntask123 Low Pressure Vacuum Tube Solar Geyser (ST)

Suntask Low Pressure Solar Geyser design uses evacuated tube and advanced heat retention technology, providing rich hot water.


Storage Tank
Inner TankSUS304-2B food grade stainless steel
Inner Tank Thickness0.4mm
Outer TankPVDF, 0.4mm
Insulating LayerPolyurethance Foam 50mm
Vacuum Tube
Material of the glass tubeBorosilicate glass
Absorptive CoatingGrade ALN/AIN-SS/CU
Length of Outer Tube1800mm
Length of Inner Tube1755mm
Outer Tube Diameter58mm
Inner Tube Diameter47mm
Glass Thickness1.6mm
Distance between two tubes 75mm
Thermal Expension3.3*10-6/ºC
Absorption coefcient 95± 1 %
Thermal emsision coefcient5 ± 1 %
VacuumP≤5.0*10-3 Pa
Stagnation Temperature>200°C
Average heat loss<0.8w/ m2.°C
Maximum strength0.8Mpa
Resist hailstoneΦ25mm
Resist wind30m/s
Support Frame
MaterialGalvanized Steel 
Lifetime15 years
Magnesium Bar1"
Assistant Tank5 liter
Electric Heater1/2", 1500W /2000W
ControllerSR609C /TK-8A 
Spare tubes58*1800mm


1) For full container we provide 1% free vacuum tubes and free OEM logo by silk-screen print.
2) Installation manual
3) Extra spare parts like bolts and gaskets


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

Suntask123 Low Pressure Vacuum Tube Solar Geyser (ST)
Suntask123 Low Pressure Vacuum Tube Solar Geyser (ST)
Suntask123 Low Pressure Vacuum Tube Solar Geyser (ST)

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