I. Classification by Material and Applications
(1) SUS304 Stainless Steel Water Tank
SUS304 stainless steel contains about 8% nickel, offering excellent corrosion resistance and oxidation resistance. Its food-grade safety standard makes it the most widely used type. In the field of domestic drinking water, such as water supply systems for residential communities, schools, and hospitals, SUS304 tanks ensure clean and uncontaminated water quality. In the food processing industry, they are used to store raw water and finished water, meeting hygiene requirements and ensuring food safety. Some laboratories with high water quality requirements also use such tanks to store experimental water.

(2) SUS316 Stainless Steel Water Tank
SUS316 stainless steel adds molybdenum to the 304 base, further enhancing corrosion resistance, making it particularly suitable for high-corrosion environments such as coastal areas and chemical plants. In desalination projects in coastal cities, SUS316 tanks can store desalinated freshwater and are less prone to corrosion over long-term use. In chemical enterprises storing acidic, alkaline wastewater, or corrosive chemical solutions, tanks made of this material effectively resist erosion and ensure storage safety.
(3) SUS444 Stainless Steel Water Tank
SUS444 stainless steel is a ferritic stainless steel with excellent chloride ion corrosion resistance and relatively low cost. In centralized heating systems in northern regions, it can be used to store softened water, preventing tank damage due to chloride ion corrosion in water. Some industrial circulating cooling water systems also use such tanks to reduce equipment maintenance costs.

II. Classification by Shape and Applications
(1) Square Modular Stainless Steel Water Tank
Square modular tanks are assembled on-site from standard stamped panels and can be customized in size according to actual needs, offering high flexibility. Large commercial complexes, office buildings, and other structures often use square modular tanks in rooftop water supply systems to maximize rooftop space and meet high water demand. Industrial water storage in factory workshops can also be customized based on workshop layout to improve space utilization.
(2) Cylindrical Stainless Steel Water Tank
Cylindrical tanks have uniform stress distribution, stable structure, relatively simple manufacturing process, and lower cost. In small-scale water supply projects in rural areas, cylindrical tanks are popular due to their easy installation and maintenance. In locations with high aesthetic requirements, such as villas and resorts, the simple appearance of cylindrical tanks blends well with the surrounding environment, fulfilling water storage functions without compromising aesthetics.
(3) Special-Shaped Stainless Steel Water Tank
Special-shaped tanks are custom-made non-standard tanks designed for unique spaces or specific usage needs. In architecturally distinctive buildings such as museums and exhibition halls, special-shaped tanks can be installed to fit the building structure, combining water storage functionality with architectural aesthetics. They are also used in special vehicles like ships and aircraft to adapt to limited and irregular space layouts.

III. Classification by Usage and Applications
(1) Domestic Drinking Water Tank
Domestic drinking water tanks are primarily used to store water for residents' daily lives and adhere to strict hygiene standards. In addition to the previously mentioned locations like residential communities and schools, these tanks play a key role in urban secondary water supply facilities by regulating water pressure and storing water volume, ensuring stable water supply for residents.
(2) Fire Protection Water Tank
Fire protection water tanks provide water for firefighting systems during emergencies and are a critical component of building fire safety facilities. High-rise buildings, commercial centers, factories, and other venues must install fire protection water tanks in accordance with fire safety regulations to ensure sufficient water capacity for firefighting needs, safeguarding lives and property in critical moments.
(3) Industrial Stainless Steel Water Tank
Industrial stainless steel water tanks are used in various industrial production processes. In electronic chip manufacturing, they store high-purity deionized water to meet the stringent water quality requirements of precision production processes. In brewing and beverage production, they store raw water and finished water to ensure product quality stability. In solar water heating systems, they serve as heat storage tanks, storing heated water for user consumption.