Welded Stainless Steel Water Tanks large capacity for industrial

Application Scenarios

1.Water Supply for Civil Buildings

– Secondary pressurized water supply for high-rise residential communities, overhead domestic water tanks on rooftops, and underground clean water tanks

– Storage of daily drinking water for hotels, office buildings, schools, hospitals and apartments

– Daily water replenishment and pressure-stabilizing water storage systems for homestays and commercial complexes

2.Special Use for Fire Protection Systems

– Overhead fire water tanks of buildings, underground fire cisterns, and supporting water tanks for integrated pump-tank units

– Long-term fire water storage for sprinkler systems and hydrant systems, complying with the national standard GB50974 for fire water supply

– Complete sets of fire water storage equipment for industrial parks, logistics parks and factories

3.Food, Beverage & Pharmaceutical Industries

– Raw water and finished purified water storage for purified water plants and mineral water factories

– Process water storage tanks for wine brewing, dairy production and condiment manufacturing

– Storage of pharmaceutical purified water and medical clean water, meeting safety standards for food-contact materials

4.Industrial Water Storage

– Circulating cooling water, boiler makeup water and expansion water tanks for central air conditioning systems

– Storage of mildly corrosive media for electroplating and chemical industries (316L stainless steel recommended)

– Intermediate clean water tanks for power plants, mines and sewage treatment plants

5.Special Environmental Applications

– Projects in coastal cities with heavy salt spray (316L material resists chloride ion corrosion)

– Anti-freezing insulated water tanks and constant-temperature hot water storage tanks for cold northern winters

– Temporary water supply for agricultural irrigation, photovoltaic power stations and construction sites in the wild

– Water storage tanks for seawater desalination and rainwater recycling systems

parameter list：

Detailed Parameter Range

Common sizes of standard modular stamping panels: 1000×1000mm, 1000×500mm, 500×500mm

Effective volume: Customizable freely from 1m³ to 2000m³

Normal overall height: 1m ~ 6m; plate thickness is configured hierarchically according to water pressure gradient

Working pressure: Normal pressure range 0.01~0.15MPa

material quality：

1.Main Material Options & Applicable Environments

1.SUS304 (1.4301) Food-grade Stainless Steel 【Global Standard Configuration】

Compliant with national standards: GB4806.9-2023 national standard for food-contact metallic materials and GB/T17219 drinking water hygiene standard. Nickel content ≥8%, chromium content ≥18%. Suitable for inland tap water, domestic water, ordinary fire-fighting water and conventional industrial clean water. Non-standard inferior 201 stainless steel is prohibited.

2.SUS316L (1.4404)With molybdenum element added, it features strong resistance to chloride ions, seawater, saline-alkali water and mild acid-base corrosion. Specially applied in coastal cities, islands, chemical wastewater and seawater desalination projects.

3.SUS444 Super Ferritic Stainless Steel

With ultra-high corrosion resistance, it is widely used in high-salinity sewage and geothermal high-temperature water environments.

2.Auxiliary Supporting Materials

– External support frame: National standard hot-dip galvanized channel steel

– Flanges, pipe fittings and bolts: Made of the same stainless steel material as the main tank body

– Insulation layer: 50~100mm thick integral polyurethane foam, externally covered with color steel plates or stainless steel protective cladding

3.Manufacturing Process Treatment

The inner wall welding seams are pickled, passivated and polished to avoid dirt accumulation in dead corners and inhibit the growth of algae and bacteria effectively.

Customizable Items：

1.Customization of Appearance & Structure

– Shapes: Square assembled water tanks, horizontal round water tanks, vertical cylindrical water tanks, non-standard special-shaped tanks for irregular spaces

– Installation locations: Outdoor above-ground tanks, basement tanks, overhead rooftop tanks, buried underground water tanks

2.Functional Module Customization

– Thermal insulated / constant temperature hot & cold water tanks, heat-tracing anti-freezing water tanks

– Pre-installed complete accessories: anti-vortex preventers, liquid level gauges, manholes, ladders, overflow pipes, drain pipes and breathing holes

– Optional configurations: internal partitions inside tanks, multi-compartment water tanks, integral tank bases

3.Supporting System Customization

– Supporting self-cleaning sterilizers and UV disinfection devices for water tanks

– Complete fire water supply packages equipped with pressure stabilizing pump sets and integrated tank-pump units

– Remote liquid level monitoring and 4G IoT water level alarm systems

4.Overseas Non-standard Customization

– Custom design for special pressure bearing grades and extra-thick anti-corrosion steel plates

Packaging Delivery Time：

1.Packaging Solutions

1.Domestic engineering orders: Stamped panels wrapped with plastic film; channel steel bases shipped without outer packaging; accessories separately packed in waterproof cartons.

2.Overseas sea freight export: Products fixed in standard fumigated plywood wooden cases or iron frames. Each panel is individually packaged for moistureproof and rustproof protection. All small spare parts are placed in separate compartments to prevent collision and deformation during ocean transportation. Both full container load (FCL) and less than container load (LCL) shipments are available.

3.Documents delivered together with goods: Packing list, material quality guarantee certificate, factory hydrostatic test report and installation manual.

2.Standard Production Lead Time

– Conventional standard water tanks (1-50m³): 7~10 working days

– Medium and large engineering water tanks (50~300m³): 12~20 working days

– Large non-standard, insulated or pressure-bearing water tanks above 300m³: 20~35 working days

– Overseas orders: An additional 3~5 working days are required for domestic customs declaration and fumigation services; expedited orders are negotiable.

3.Installation Period

On-site assembly of standard-volume tanks can be finished within 2~7 days, including 48-hour full-water tightness test for acceptance inspection.

Working Principle
1. Municipal pipelines fill water into the tank, while liquid level monitors track water volume. Excess water overflows through the overflow port at high water level.
2. Water is extracted from the tank via external pumps or pipelines for end-user consumption.
3. The bottom drain outlet enables regular sediment cleaning to maintain water quality and realize stable long-term water storage and supply.