Glass Fused-to-Steel (GFS) Tank | Enamel Tank | Price, Specifications | Order Online
Stainless Water Tank

GFS (Glass Fused-to-Steel) Tank

Aqua Cube’s glass-fused-to-steel (GFS) modular water tanks (also known as enamel tanks) are advanced storage solutions engineered for exceptional durability, long service life, and superior water purity. These tanks are assembled on-site using special glass-enamel steel plates, self-locking bolts, sealants, stirrups, and accessories, allowing fast and cost-effective installation without heavy equipment.

Key Features

Glass-fused-to-steel (GFS) modular water tanks combine the mechanical strength of steel with the superior corrosion resistance of glass. This proven technology delivers long-term performance, hygiene, and structural stability for large-scale and demanding storage applications. As a supplier, Aqua Cube ensures that each tank system meets project-specific requirements while offering efficient installation and long-term value.

High-Quality, Food-Grade Stainless Steel

Glass-Fused-to-Steel Structure

GFS tanks are constructed from special enamel-coated steel plates assembled on-site using bolted connections and sealing systems. The steel plates are manufactured from titanium-containing enamel hot-rolled steel, developed in cooperation with first-tier steel producers, ensuring consistent quality and performance.

Structurally Balanced and Reinforced Design

High-Temperature Fusion Technology

GFS tanks are produced by firing molten glass onto steel plates at temperatures between 820°C and 930°C. This process creates a permanent, corrosion-resistant bond that fully utilizes the flexibility of steel and the chemical resistance of glass.

Modular Panels for Easy Installation

Modular and Expandable Design

The modular bolted construction allows tanks to be installed quickly, expanded in volume, relocated, or reconfigured as operational needs change. This design significantly reduces installation time, labor requirements, and overall project cost.

Lightweight, Clean, and Modern Appearance

Hygienic and Low Maintenance Performance

The smooth, non-porous glass surface resists algae, bacteria, and chemical reactions. This makes GFS tanks suitable for potable water and process applications while minimizing cleaning requirements and operational downtime.

Glass-Fused Water Tank Specifications

Glass-fused-to-steel tanks are built for strength, corrosion resistance, and long-term reliability. Each tank is assembled from precision-engineered enamel steel panels designed to withstand mechanical loads, aggressive media, and harsh environmental conditions.

Material Composition:

  • Glass-fused-to-steel (enamel-coated steel panels)
  • Titanium-containing enamel hot-rolled steel plates
  • Vitrium glass enamel coating with Titanium Dioxide (TiO₂)
  • Self-locking bolts, sealants, stirrups, and structural accessories

The molten glass coating provides outstanding resistance to corrosion and wear, validated through decades of global installations in demanding applications.

Technical Specifications:

  • Available Capacity: 50 m³ (50,000 liters) to 18,000 m³ (18,000,000 liters)
  • Panel Thickness: 3mm – 20mm
  • Minimum Tank Height: 3.6 – 3.82 meters
  • Maximum Tank Height: 17 meters
  • Panel Type: Steel enamel-coated panels
  • Roof Options:
    • Aluminum deck roof
    • Aluminum dome roof
    • Enamel roof
    • Double membrane roof
    • Fiberglass polyester roof

Applications of Glass-Fused Water Tanks

Glass-fused-to-steel tanks are classified by end use, with each application requiring specific corrosion resistance levels, sealing performance, and structural design. Their adaptability makes them suitable for a wide range of storage and process requirements.

Residential and Mixed-Use Developments

Drinking Water and Municipal Supply

Designed to ensure hygienic water storage, GFS tanks provide safe drinking water for public and private water supply systems while maintaining long-term water quality.

Schools and Universities

Wastewater, Sludge, and Process Treatment

GFS tanks are widely used in wastewater treatment plants for storing wastewater, sludge, and process liquids. Their resistance to aggressive media and fluctuating conditions ensures stable performance.

Hospitals and Healthcare Facilities

Biogas and Renewable Energy Systems

These tanks function as process tanks for biogas digesters and gas storage, offering structural integrity, sealing reliability, and chemical resistance.

Industrial Systems

Industrial and Fire Protection Systems

GFS tanks store process water, fire protection water, cooling water, and industrial liquids. Their durability makes them ideal for industrial process equipment and emergency systems.

Fire Protection and Backup Supply

Agriculture and Environmental Storage

Can be used for agricultural water, effluent, liquid fertilizers, and manure storage. These tanks resist corrosion from organic and chemical substances while supporting large-volume storage.

Industrial Systems

Bulk and Special Material Storage

Glass-fused tanks can also store bulk materials such as grain, cement, limestone, fly ash, salt, and other dry or semi-wet materials, as well as stormwater retention and reuse systems.

Our Selection and Installation Process

Aqua Cube supplies glass-fused-to-steel tank systems tailored to each project’s technical and operational requirements. Our process ensures efficient on-site assembly, reliable performance, and long-term durability.

Design and Panel Selection

Standard Panel Selection

Tank panels are selected based on capacity, height, and application-specific corrosion requirements. Panel thickness and enamel performance are matched to the intended use.

Base and Site Preparation

Tank Dimensions and Design

Each tank is engineered according to its application, ensuring proper sealing performance, structural integrity, and compliance with operating conditions. Detailed drawings and layouts are provided to support installation.

On-site Assembly

Site and Base Preparation

A properly prepared concrete foundation is essential. The base must be level and capable of supporting the tank load, ensuring even stress distribution and long service life.

Testing and Acceptance

Ordering and Customization

Aqua Cube offers standard configurations and some customized solutions. Tank volume is easily expandable, and the tank itself is transferable. Inlet and outlet locations, roof type, access systems, and special requirements are defined during the ordering stage to ensure a precise fit.

Water Quality and Expected Lifespan

Water Quality and Lifespan

GFS tanks are suitable for potable water, industrial liquids, and aggressive media within enamel chemical resistance limits. With correct installation and operation, service life may exceed 30 years.

Usage, Repair, and Maintenance Support

Glass-Fused-to-Steel tanks are designed for efficient operation with minimal maintenance. Proper usage and routine inspections help preserve performance and extend operational life.

Daily and Routine Use

Daily and Routine Use

These tanks support continuous operation in potable water, wastewater, industrial, and agricultural applications. The glass-enamel lining protects against corrosion, scaling, and chemical attack.

Cleaning and Maintenance

Cleaning and Maintenance

  • Easy maintenance and cleaning due to smooth glass surface
  • Reduced operational duty time
  • Periodic inspection of bolts, seals, and accessories
Repair and Longevity

Repair and Longevity

  • Individual panels can be replaced without dismantling the entire tank
  • Bolted connections allow fast repairs and upgrades
  • High resistance to aggressive media and atmospheric conditions
Operational Tips

Operational Tips

  • Operate within the enamel’s chemical resistance range
  • Inspect sealing and drainage systems regularly
  • Follow recommended maintenance practices to ensure reliable service for 30+ years

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