What is Glass-Fused-to-Steel tank?

A Glass-Fused-to-Steel tank, also known as a Glass Coated Steel Tank or Glass Fused Steel Storage Tank, combines assembled steel plates, self-locking bolts, and sealing glue to provide a highly reliable storage solution. Each steel plate is treated with a double-sided anti-corrosion coating, creating a robust protective barrier that resists acids, alkalis, and high temperatures. The advanced glass-fused-to-steel process ensures outstanding durability and corrosion resistance, making these tanks superior to traditional storage options. Glass-Fused-to-Steel tanks are widely used for storing water and various other liquids across multiple industries.

· The market for Glass-Fused-to-Steel tanks, including Glass Coated Steel Tanks and Glass Fused Steel Storage Tanks, is rapidly expanding as industries increasingly demand durable and corrosion-resistant solutions for water storage and other applications.

Key Takeaways

· Glass-Fused-to-Steel tanks combine steel strength with a glass coating, offering exceptional corrosion resistance and durability.

· These tanks require minimal maintenance, saving time and costs for facility managers over their long lifespan of 30 years or more.

· The modular design allows for quick assembly and easy relocation, making these tanks flexible for various applications.

· Glass-Fused-to-Steel tanks are ideal for storing water, wastewater, and industrial liquids, ensuring safe and hygienic storage.

· Investing in Glass-Fused-to-Steel tanks can lead to significant long-term savings due to their low maintenance needs and durability.

Manufacturing Process 

Materials Used

Manufacturers select specific materials to ensure the strength and longevity of a glass-fused-to-steel tank. The process uses steel sheets as the main structural component. These sheets receive a special glass coating, also known as enamel frit, which bonds to the steel during production. The table below outlines the primary materials:

Glass Fusing

The glass fusing process creates the tank’s protective barrier. Workers apply enamel frit to both sides of the steel sheets. These panels then enter a high-performance oven. The oven heats the panels to temperatures between 800°C and 850°C (about 1,500°F). At these high temperatures, the glass coating fuses with the steel, forming a strong bond. This fusion gives the tank its unique resistance to corrosion, acids, and alkalis. The glass layer acts as a shield against harsh chemicals and extends the tank’s lifespan.

Note: The combination of steel’s mechanical strength and glass’s chemical resistance results in a durable and long-lasting storage solution.

Assembly Steps

The assembly of a glass-fused-to-steel tank follows a precise sequence:

1. Site preparation ensures a level surface and proper foundation.

2. Workers construct a concrete ring wall or slab if needed.

3. They assemble the steel panels from the base upward, keeping each plate clean and dry.

4. The bottom layer attaches securely to the foundation.

5. Additional layers connect using specialized equipment, and wind girders add stability.

6. Fittings such as valves and manholes are installed during assembly.

7. The roof is placed last, completing the tank.

Each step in the process helps create a tank that resists corrosion and stands up to demanding environments.

Key Features of Glass-Fused-to-Steel Tank

Corrosion Resistance

A glass-fused-to-steel tank stands out for its exceptional resistance to corrosion. The glass coating forms a protective barrier that shields the steel from rust and chemical reactions. This feature makes the tank suitable for storing water, wastewater, and other corrosive liquids. The glass-fused-to-steel process creates an inert surface, which prevents acids and alkalis from damaging the tank. Many industries choose these tanks because they require minimal maintenance and offer a long service life, even in harsh environments.

The glass coating acts as a shield, allowing the tank to withstand exposure to chemicals and moisture without deteriorating.

The following table compares corrosion resistance and maintenance needs between glass-fused-to-steel tanks and welded steel tanks:

Durability

Glass-fused-to-steel tanks deliver outstanding durability. The fusion of glass and steel creates a tough surface that resists mechanical damage. These tanks can handle impacts and rough handling better than many other storage solutions. Manufacturer data shows that a glass-fused-to-steel tank can last between 30 to 50 years or longer when properly maintained. The dual material benefits—strength from steel and chemical resistance from glass—ensure the tank remains reliable over decades.

· The tank’s robust construction allows it to perform well in demanding environments.

· Industries such as agriculture, food processing, and chemical storage rely on these tanks for their long lifespan and consistent performance.

Flexibility & Strength

Glass-fused-to-steel tanks offer flexibility in design and installation. The modular construction uses factory-finished panels, which workers can quickly assemble on-site. This method saves time and reduces costs compared to concrete tanks. The tank’s structure provides high mechanical strength, while the glass coating protects against environmental damage.

The modular bolted tank construction principle allows the ‘factory quality’ finished panels to be economically shipped to site and erected within very tight timescales to meet customer requirements.

Glass-fused-to-steel tanks meet important industry standards, including NSF/ANSI 61 for potable water safety, Regulation 31 (DWI) for water quality, and ISO9001 for quality management. These certifications confirm the tank’s reliability and suitability for a wide range of applications.

Summary of Main Characteristics

· Exceptional corrosion resistance due to the glass coating.

· High durability and resistance to mechanical damage.

· Flexible design and rapid installation.

· Long lifespan, often exceeding 30 years.

· Certified for safety and quality in water and liquid storage.

Advantages of Glass-Fused-to-Steel

Low Maintenance

Glass-fused-to-steel tanks require very little maintenance compared to other storage options. The glass coating protects the steel from rust and chemical damage, so operators do not need to repaint or treat the surface regularly. Epoxy-coated tanks often need frequent repairs and replacements because their coatings wear out faster. Proper design and sealing at the joints help prevent leaks, making these tanks reliable for long-term use.

· Glass-fused-to-steel tanks do not need repainting.

· Maintenance costs stay low over time.

· Epoxy-coated tanks require more frequent attention and have shorter lifespans.

The reduced need for inspections and repairs leads to significant savings for facility managers.

Longevity

Many industries choose glass-fused-to-steel tanks because of their long service life. The fusion of glass coating and steel creates a strong barrier that resists wear and tear. Real-world installations show impressive results:

A typical glass-fused-to-steel tank may cost about 12% more than a concrete tank at first. Over ten years, the total cost of ownership can be over 40% lower. These savings come from reduced maintenance, fewer inspections, and reliable performance.

Environmental Benefits

Glass-fused-to-steel tanks support environmental sustainability. The manufacturing process uses multiple layers of glass coating and a firing method that increases strength and corrosion resistance. This durability means the tanks last longer and need fewer repairs than concrete or plastic tanks, which often degrade and require replacement. Their use in bio-energy and wastewater treatment facilities highlights their role in promoting sustainable practices. By reducing waste and minimizing resource use, these tanks help protect the environment.

Glass-fused-to-steel tanks offer a combination of low maintenance, long lifespan, and environmental benefits, making them a smart choice for modern storage needs.

Applications 

Water Storage

A glass-fused-to-steel tank serves as a reliable solution for water storage in many industries. Municipalities use these tanks to store potable water, ensuring a safe supply for communities. The glass coating prevents contamination and maintains water quality over time. Agricultural operations also depend on these tanks for irrigation and livestock water storage. The modular design allows for easy expansion as water demand grows. Many facilities choose this type of tank because it resists corrosion and keeps water clean, even in harsh environments.

· Potable water storage for municipal systems

· Irrigation and livestock water storage in agriculture

· Emergency water reserves for disaster preparedness

· Rainwater harvesting and storage

The glass-fused-to-steel tank protects water from outside contaminants and chemical reactions, making it a preferred choice for long-term storage.

Wastewater & Industrial Use

Industries and municipalities rely on glass-fused-to-steel tanks for wastewater treatment and industrial liquid storage. These tanks handle harsh chemicals, sewage, and sludge without corroding or leaking. The glass coating provides a barrier against aggressive substances, which makes the tanks suitable for sewage treatment plants and factories. Operators benefit from low maintenance and long service life.

1. Exceptional corrosion resistance protects against acids and bases.

2. The tanks withstand physical impacts and maintain structural stability.

3. The glass lining prevents leaks, ensuring safe containment.

4. Facilities experience reduced maintenance and operational costs.

5. Modular construction allows for quick installation and future upgrades.

Industrial sites often use these tanks for chemical storage, environmental protection, and hazardous material containment.

Glass Coated Steel Tank vs. Glass Fused Steel Storage Tank

The terms glass coated steel tank and glass fused steel storage tank often refer to the same technology. Both use a glass coating fused to steel panels, creating a durable and corrosion-resistant surface. However, some manufacturers may use different names for marketing purposes. When compared to other tank types, such as fusion-bonded epoxy tanks, glass-fused-to-steel tanks offer several advantages.

· Glass-fused-to-steel tanks last longer and require less maintenance than epoxy-coated tanks.

· The enameling process creates a strong bond that resists cracking and chipping.

· Facilities save money over time due to fewer repairs and lower cleaning costs.

A glass-fused-to-steel tank provides a dependable solution for water, wastewater, and industrial liquid storage, outperforming many traditional options.

Choosing a Glass-Fused-to-Steel Tank

Site & Capacity

Selecting the right site and capacity for a glass-fused-to-steel tank involves several important factors. Engineers begin with a site survey to check soil stability and drainability. They also review legal requirements for the location. The foundation design must support the tank’s weight and maintain its structural integrity. The following table highlights key considerations:

Other factors include soil stability, seismic activity, and climate. These elements affect the safety and longevity of glass-lined-steel tanks. Engineers also assess community demands for water supply, site conditions, pressure requirements, long-term maintenance, ease of access, and overall costs.

Cost Factors

Cost plays a major role in choosing glass-lined-steel tanks. Initial investment covers materials, site preparation, and foundation work. Long-term costs include maintenance and repairs. Glass-fused-to-steel tanks often have higher upfront costs than other options, but their durability and low maintenance can reduce expenses over time. Facility managers consider the total cost of ownership, which includes installation, operation, and future upgrades.

Tip: Comparing the long-term savings of glass-lined-steel tanks with other types helps decision-makers choose the most cost-effective solution.

Installation Tips

Proper installation ensures the performance and lifespan of glass-lined-steel tanks. Workers prepare the site by leveling the ground and building a strong foundation. Modular panels allow for quick assembly and easy expansion. Access to the site and clear pathways for equipment make the process smoother. Engineers check all connections and seals to prevent leaks and maintain safety.

· Level the ground before starting assembly.

· Use a concrete footing for stability.

· Ensure all panels and bolts are clean and dry.

· Provide easy access for maintenance and inspection.

A well-planned installation supports the tank’s reliability and long-term use.

Glass-fused-to-steel tanks combine steel strength with a glass coating to deliver reliable water and liquid storage. These tanks offer corrosion resistance, durability, and easy maintenance. The table below highlights their main benefits:

Industry professionals recommend these tanks for new projects. Wansheng stands out as a leader in innovation and quality in the glass-fused-to-steel tank market.

FAQ

What makes glass-fused-to-steel tanks suitable for biogas storage?

Glass-fused-to-steel tanks resist corrosion from acids and gases produced during biogas generation. The glass coating protects the steel, ensuring safe containment of biogas. Many biogas facilities choose these tanks for their durability and reliability.

What industries use glass-fused-to-steel tanks for biogas applications?

Industries such as agriculture, waste management, and energy production use these tanks for biogas storage. Municipalities also install them in biogas project sites to store and process biogas safely.

What are the main benefits of using glass-fused-to-steel tanks in a biogas project?

Glass-fused-to-steel tanks offer long service life, low maintenance, and strong resistance to chemicals found in biogas. Operators find these tanks easy to assemble and expand, making them ideal for growing biogas projects.

What maintenance do glass-fused-to-steel tanks require in biogas facilities?

Operators inspect tanks regularly for leaks and clean surfaces to prevent buildup. The glass coating reduces the need for frequent repairs. Most biogas sites report minimal maintenance over many years.

What factors should engineers consider when selecting a glass-fused-to-steel tank for biogas storage?

Engineers review tank capacity, site conditions, and chemical resistance. They also check for certifications and ensure the tank meets safety standards for biogas containment. Proper installation supports safe biogas storage.

Tip: Glass-fused-to-steel tanks help biogas facilities operate efficiently and safely.