Stainless steel storage tanks are containers made primarily of stainless steel (primarily 304, 316L, etc.) and are used for storing, mixing, reacting, or transporting a variety of materials. Their core advantages lie in their excellent corrosion resistance , high strength and toughness , ease of cleaning and sterilization , excellent sealing , and long service life . This makes them the equipment of choice for numerous industries, including food, beverage, pharmaceutical, chemical, and water treatment.
The choice of stainless steel material is crucial and directly related to the corrosion resistance and service life of the tank. Common materials are as follows:
SUS 304 / 06Cr19Ni10 |
Suitable for general water, food, wine, milk, weakly corrosive chemicals, etc. |
SUS 316L / 022Cr17Ni12Mo2 |
Applicable to seawater, strong acid, strong alkali, chemicals and medicines containing chloride ions or halogens, etc. |
SUS 321 / 06Cr18Ni11Ti |
Has better resistance to intergranular corrosion and is suitable for certain specific corrosive environments |
Duplex stainless steel |
Expensive, mostly used in extremely harsh chemical and marine environments |
Inner wall surface treatment |
According to the hygiene requirements (such as GMP, FDA), the inner wall of the tank can be mechanically polished (such as 400#, 600# mirror polishing) or electrolytic polishing |
Ⅲ. Common sizes of Steel Structure Workshop
The size range of stainless steel storage tanks is very flexible and can be customized according to needs. Usually divided by volume:
Classification |
Volume range (cubic meters) |
Diameter/length examples (for reference only) |
Common forms |
Small storage tanks |
0.1 - 5 m³ |
Diameter 0.8-1.8m, height 1.5-2.5m |
Vertical flat bottom/conical bottom, horizontal |
Medium storage tanks |
5 - 50 m³ |
Diameter 2.0-3.5m, height 3.0-6.0m |
Vertical vault, horizontal vault |
Large storage tanks |
50 - 200 m³ |
Diameter 4.0-6.0m, height 6.0-10.0m |
Vertical vault with insulation jacket |
Extra large storage tanks |
200 m³ and above |
The diameter can reach more than 10m and the height can exceed 15m |
On-site assembly, large vertical vault |
Examples of common standard sizes (vertical):
Diameter φ1200mm × Height 1800mm ≈ Volume 2m³ (2000L)
Diameter φ1500mm × Height 2500mm ≈ Volume 4.4m³ (4400L)
Diameter φ2000mm × Height 3000mm ≈ Volume 9.4m³ (9400L)
Note : The specific size and capacity can be customized according to the customer's actual site and needs .
________________________________________IV. Main Application
Stainless steel storage tanks are widely used due to their corrosion resistance, easy cleaning and low maintenance costs:
Food and beverage industry |
Storage and fermentation tanks (beer, wine, soy sauce, vinegar), milk tanks, juice tanks, syrup tanks, drinking water tanks, food raw material intermediate storage tanks |
Pharmaceuticals and Bioengineering |
Purified water storage tanks , injection water storage tanks , liquid preparation tanks, fermentation tanks (antibiotics, vaccines), clean storage tanks |
Chemical Industry |
Storage of various acids, alkalis, alcohols, organic solvents, chemical intermediates, etc. |
Water treatment and environmental protection |
Pure water, ultrapure water storage, softened water tanks, reverse osmosis (RO) system raw water/product water tanks, dosing tanks and intermediate water tanks in sewage treatment processes |
Brewing and dairy industry |
Wine and whiskey aging tanks, milk receiving and temporary storage tanks |
Energy and Power |
Desalted water tanks in nuclear power plants, ultrapure water storage in the solar energy and semiconductor industries |
In summary :
Stainless steel storage tanks are essential infrastructure for modern industry. When selecting a tank, consider its material, structure, size, and configuration based on factors such as the nature of the stored material (corrosiveness) , process requirements (pressurization, mixing, or insulation) , sanitation requirements , and installation site to ensure it meets production needs safely, efficiently, and economically.
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