Residential Secondary Water Supply Sectional Stainless Steel Water Tank

For residential secondary water supply projects, the tank capacity, installation location, inlet and outlet connections, and internal structure should be designed according to residents’ water consumption, building height, water supply zoning, and site conditions. The Sectional Stainless Steel Water Tank panel design facilitates transportation to installation areas such as basement equipment rooms and rooftop tank rooms. The tank length, width, and height can also be customized to suit the available space.

Unlike one-piece tanks, sectional stainless steel water tanks feature a standardized panel design. The panels can be assembled using bolted or welded connections, depending on the tank structure and project requirements.

Key Features of Sectional Stainless Steel Water Tanks

1. SUS304 / SUS316 Stainless Steel

The tank can be manufactured using SUS304 or SUS316 stainless steel panels according to project requirements. Both grades offer good corrosion resistance and are suitable for various water storage applications. The appropriate grade should be selected based on water quality, chloride content, installation environment, and project specifications.

For drinking water storage applications, the tank panels, sealing materials, and other water-contact components should also be verified for compliance with the applicable drinking water hygiene and material requirements in the project location.

304 vs. 316 Stainless Steel Comparison

Key Indicator	304 Stainless Steel	316 Stainless Steel
Material	SUS304 / AISI 304	SUS316 / AISI 316
Food-Grade Applications	✓ Suitable for food and drinking water storage	✓ Suitable for food and drinking water storage
Main Composition	Chromium, Nickel	Chromium, Nickel, Molybdenum
Corrosion Resistance	Excellent for general environments	Superior, especially against chloride corrosion
Applications	Drinking water, domestic water, hotels, schools, food factories, etc.	Coastal and high-salt environments, food processing, chemical and specialized industrial projects, etc.
Cost	Lower and more cost-effective	Higher, suitable for demanding environments

2. Modular Panels for Flexible Capacity Customization

Sectional stainless steel water tanks are assembled from standardized panels. Common panel sizes include 1,000 × 1,000 mm, 1,220 × 1,220 mm, 1,000 × 500 mm and 500 × 500 mm.

By adjusting the number of panels, panel sizes, and structural configuration, the tank can be designed to meet different project capacity requirements. For projects with limited space in basement equipment rooms, rooftop tank rooms, or internal building areas, the modular design also makes it easier to plan the tank dimensions and installation layout according to site conditions.

Reference for Matching Water Tank Panel Thickness and Height Values:

3. Multiple Panel Connection Options

Sectional stainless steel water tanks can use different panel connection methods depending on their structural design.

Bolted Type: The panels are connected using bolts, sealing gaskets, and associated structural components. This design is suitable for modular onsite assembly. The feasibility of dismantling, relocating, or expanding the tank depends on its specific structural design.

Welded Type: The panels are joined by welding to form continuous connections. Welding quality, weld finishing, and onsite installation procedures should comply with the applicable technical specifications.

Each connection method has its own advantages. The appropriate option should be selected according to the water storage application, installation conditions, design requirements, and project budget.

4. Convenient Transportation and Onsite Installation

Modular water tanks are transported as panels and associated components, reducing the transportation and lifting constraints often associated with large, one-piece tanks. For restricted installation areas such as basements, rooftops, and equipment rooms, the panels can be transported in stages through available access routes and assembled onsite.

The actual installation method and construction schedule depend on tank capacity, structural type, site conditions, and the installation team’s resources.

Typical Applications of Sectional Stainless Steel Water Tanks

Residential Communities and High-Rise Buildings

Used in domestic water supply systems for residential communities, apartment buildings, and high-rise buildings. Tank capacity can be determined according to the number of residents, estimated water demand, and water supply zoning. The tank can be integrated with booster pump sets and water supply pipelines.

Commercial Buildings and Public Facilities

Suitable for water storage in office buildings, hotels, hospitals, schools, and other public facilities. Tank specifications and materials should be selected according to the building’s intended use and project requirements.

Industrial Plants and Production Facilities

Used for industrial water storage applications where the stainless steel grade and tank performance meet the relevant requirements. For process water or special liquids, compatibility between the stored medium and the tank material should be verified in advance.

Fire Water Storage Systems

Can be used in fire water storage projects where the tank design meets the applicable requirements. Tank capacity, structural strength, connection configuration, and effective storage volume should be determined according to the fire protection design and local regulations.

Stainless Steel Water Tank Installation Guide

Standard Configuration of Rectangular Bolted Stainless Steel Sectional Water Tank:

• Panels (including bottom panel, wall panels, roof panel, and manhole cover);
• Internal Components (including internal ladder, tie rods, supports, flanges, and rubber seals);
• External Components (including external ladder, angle iron, tie plates, bolts, and nuts);
• Base (Concrete beam,C-channel steel).
  
  

Physical Properties