What is Elevated Water Storage Tank?
An elevated water storage tank—also commonly known as an overhead water tank—is a water storage system installed at a height, typically supported by a steel or concrete tower. The elevated height allows the tank to generate natural water pressure through gravity, making it ideal for supplying water to homes, farms, factories, schools, or remote communities without relying on continuous electric pumping.
In agricultural settings, elevated tanks are widely used for gravity-fed irrigation systems, livestock watering, and remote farmland water supply, especially in off-grid areas where power is limited or inconsistent.
An elevated water tank system typically consists of two major components(One is water tank and one is the structure):
The Water Tank
Mounted at the top of the structure, the tank holds the water and can be made from various materials based on application needs:
GRP (Glass Reinforced Plastic) Water Tank – Lightweight, modular, and corrosion-resistant
HDG (Hot-Dip Galvanized Steel) Water Tank – Strong and durable, suitable for outdoor use
Corrugated Steel Water Tank – Modular, ideal for large-capacity agricultural storage
Stainless Steel Water Tank – High hygienic standard, used for drinking water and sensitive applications
The Support Structure (Steel Tower)
The tank is supported by either a steel tower or a concrete tower, which elevates the tank to the desired height and ensures structural stability. Steel towers are more commonly used due to flexibility and faster installation.
There are two main types of steel tower finishes:
Hot-Dip Galvanized (HDG) Steel Tower – Long-lasting, rust-resistant, suitable for coastal or humid environments
Painted Steel Tower – Cost-effective, suitable for dry inland regions, requires periodic maintenance
Smart Design: Right Tank Size + Right Tower = Lowest Cost
We don’t just design based on tank capacity — we also optimize the tank’s length, width, and height, along with the tower’s steel structure and materials, to ensure the most cost-effective and structurally sound solution for each project.
By carefully adjusting the tank dimensions and tower specifications, we help clients reduce material costs, simplify installation, and achieve the lowest possible total cost for their elevated water tank systems.
What is Steel Tower for Elevated (Overhead) Steel or GRP Water Tank ?
Steel water towers are called steel water framing which are tall structures made primarily from durable steel. They elevate large water storage tanks high above the ground, ensuring a consistent water supply through gravity-fed pressure. They are commonly used in residential, commercial, industrial, and agricultural settings where water needs to be stored and delivered reliably.
Advantages of Steel Towers for Elevated (Overhead) GRP or Steel Water Tank?
1. Strength and Durability
Steel is renowned for its high tensile strength, making it ideal for constructing towers that need to withstand significant pressure. Properly maintained steel water towers can last for decades, even in harsh weather conditions.
2. Quick Installation
Steel water towers are often prefabricated offsite, which significantly reduces construction time. Once the components are ready, the tower can be assembled and installed quickly, minimizing downtime.
3. Design Flexibility
Steel allows for various design configurations, including cylindrical and spherical tanks, to meet specific capacity and aesthetic requirements. This flexibility makes steel towers suitable for both functional and decorative purposes.
4. Ease of Maintenance
Steel water towers are relatively easy to inspect and repair. Protective coatings and regular maintenance can manage issues such as corrosion, ensuring a long lifespan.
5. Recyclability
A steel water tower can be dismantled and recycled at the end of its life, making it an environmentally friendly option
Steel Tower Technical Specifications for Elevated Steel and GRP Water Tanks
Constructed with Q355B/Q235B welded/hot-rolled H-section steel (main frame) and angle steel (bracing), this bolted tower withstands extreme winds (100–300 km/s) and offers a 50-year lifespan. Ideal for telecom, power transmission, and renewable energy, its durable, corrosion-resistant design ensures reliability in harsh environments.
| Item | Specification |
|---|---|
| Main Steel Frame
-Column/Beam |
Q355B/Q235B Welded/ Hot rolled H Section Steel |
| Secondary Frame
-Bracing |
Angle Steel |
| Connection | Bolted |
| Wind Speed | 100km/s to 300km/s |
| Structure Usage | Up to 50 years |
Elevated Water Tank Steel Tower – Framing Design & Manufacturing
To ensure maximum efficiency and cost savings, each steel tower is designed with a customized water tank, where the tank’s dimensions are precisely calculated based on its required volume. This integrated approach allows us to minimize material usage while maintaining structural integrity, thereby reducing overall costs for both the tank and the supporting tower structure.
Key Steps in the Process:
Volume-Based Tank Sizing – The water tank’s capacity is determined according to project requirements, and its dimensions (height, diameter or length and width, wall thickness) are optimized to balance weight, strength, and material efficiency.
Structural Integration – The tower’s framework (using Q355B/Q235B steel) is then designed to support the tank’s load while minimizing excess steel usage. Bracing and reinforcements are strategically placed for stability.
Cost Optimization – By fine-tuning both the tank and tower design, we achieve the most economical use of materials without compromising durability or performance.
Precision Manufacturing – Detailed CAD drawings and simulations ensure seamless fabrication, with bolted connections for easy assembly and maintenance.
Steel Tower Drawing for Each of Your Elevated Steel or GRP Water Tank Projects
We provide detailed and project-specific steel tower design drawings to support elevated water tank installations.
Each drawing includes foundation layout, column and bracing details, structural framing design, and tank mounting levels to ensure stability and cost-efficiency.
All designs are tailored to your tank capacity, height, and local wind/seismic conditions.
Framing Components of Elevated Water Tank Steel Tower
Our high-grade (Q355B/Q235B) steel components feature precision welding with flawless finishes, hot-dip galvanized coating (Over 70μm) for superior corrosion resistance, and laser-cut connections with perfect alignment. Each piece undergoes strict quality control to ensure dimensional accuracy (±1mm), smooth edges, and uniform surface treatment. Designed for durability and easy assembly, these structural elements guarantee long-term performance in water tank applications.
Packing of Framing Parts for Elevated Water Tank Steel Tower
Our optimized packaging system ensures easy identification and cost-efficient shipping. Each component is marked with unique codes and grouped by assembly stages. Large beams are stacked flat, while small parts are pre-sorted in labeled boxes.
Key benefits:
Error-proof assembly with clear part numbering
20-30% lower shipping costs through space-maximized loading
Faster installation with logically packed containers
Elevated (Overhead) Sectional Steel or GRP Water Tank vs Ground Water Tank
According to the installation position, GRP panel water tanks ,steel water tanks and HDG water tanks and SS water tanks can be categorized into elevated (or overhead) water tanks and ground (or on-ground) water tanks. Here’s a detailed description of each type:
Elevated (Overhead) Steel or GRP Water Tank
Installation Position: Installed at a height, usually on top of a tower, steel support structure, or building rooftop.
Purpose:
Provides gravity-fed water supply, eliminating the need for continuous pumping.
Ensures stable water pressure for residential, commercial, and industrial applications.
Commonly used in municipal water supply systems, high-rise buildings, agricultural irrigation, and firefighting systems.
Structural Features:
Requires strong supporting structures (concrete or steel towers) to bear the weight of the filled tank.
The tank is often designed with corrosion-resistant coatings to withstand outdoor exposure.
Can be constructed in modular panel form for easy transportation and assembly.
Advantages:
Energy-efficient: Uses gravity instead of relying on pumps.
Reliable water supply even during power outages.
Disadvantages:
Higher installation cost due to the need for a support structure.
Requires structural reinforcement for earthquake and wind resistance.
Ground Water Tank (On-Ground Water Tank)
Installation Position: Installed directly on the ground or on a concrete base/foundation.
Purpose:
Used for water storage in factories, fire protection, agriculture, and residential areas.
Serves as a backup water supply in case of shortages or emergencies.
Structural Features:
Typically modular and assembled using galvanized steel panels.
Often equipped with inlet, outlet, overflow, and drainage pipes for efficient water management.
Can be customized in various sizes and shapes to fit available space.
Advantages:
Easier installation with lower structural requirements.
Scalable: Can be expanded by adding more panels.
Disadvantages:
Needs a pump to distribute water at higher pressure.
Takes up more ground space, which may not be ideal in urban areas.
Comparison Summary
| Feature | Elevated Water Tank | Ground Water Tank |
|---|---|---|
| Installation | Installed on steel towers or concrete supports | Placed on concrete base or embedded into the ground |
| Water Supply | Gravity-fed system, reduces need for pumps | Requires pumps for water distribution |
| Maintenance | More difficult due to height, needs scaffolding | Easy access for cleaning and inspections |
| Initial Cost | Higher, due to support structure | Lower, no elevation structure required |
| Operation Cost | Lower in long term (uses gravity) | Higher due to continuous pump operation |
| Typical Applications | Rural water supply, agricultural irrigation, backup use | Urban water systems, residential buildings, factories |
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