China GFS Tanks for Municipal Wastewater Projects - Leading Suppliers and Factory Solutions
Description
The Glass fused to steel (GFS) tank is a kind of bolted storage tank made from two materials: glass and steel. High-strength TRS (titanium-rich steel) plates and enamels are perfectly fused at high temperatures to form a highly inert inorganic glaze layer. This coating system has excellent anti-corrosion properties and is the best choice for municipal wastewater treatment project.
Municipal wastewater is a complex mixture characterized by large volume, relatively consistent water quality, good biodegradability, but containing suspended solids, nitrogen and phosphorus, microorganisms, and potentially corrosive gases. GFS bolted tanks have become a classic choice for municipal wastewater storage tanks because their electroplated enamel surface can perfectly solve corrosion, vapor phase corrosion, and coefficient wear simultaneously, and is smooth and not prone to scaling.
Glass fused to steel is a permanent, molecular bond created by fusing a specially formulated silica-based glass enamel to a base sheet of steel at very high temperatures (around 820°C / 1500°F), combines the advantages of both materials — the strength and flexibility of steel and excellent anti-corrosion properties of glass.
Material Characteristics of Glass-Fused-to-Steel Tanks
Low Carbon, High Strength, High Titanium
The steel substrate employed in the construction of glass-fused-to-steel tanks is a special high strength enamelled steel with a unique design and superior properties. Its mechanical properties, including yield strength, tensile strength, and elongation, far exceed those of conventional steel sheets.
Specification
| Coating thickness | 250~450um |
| pH range | Standard grade 3~11; Special grade 1~14 |
| Coating process | Standard 2 coats 2 fire; 3 coats 3 fire available |
| Hardness | 6.0 Mohs |
| Elasticity | 500KN/mm |
| Service life | More than 30 years |
Uses of Glass Fused To Steel Tanks
Glass Fused To Steel Tanks are widely used in various industries and serve different purposes in different environments. These tanks are mainly used for:
- Municipal drinking water, sewage treatment, sludge storage, wastewater treatment and anaerobic digestion and biogas.
- Industrial wastewater treatment, storage, anaerobic digestion and biogas, process water storage and bulk solids storage.
- Agricultural slurry storage, on- and off-farm biogas production, storage of livestock feeds such as hay, maize and high-moisture grains, and bulk solids storage.
Features Of Glass Fused To Steel Tanks
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Fast installation and short construction period
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Excellent anti-corrosion properties
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Low construction environment requirements
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Strong temperature adaptability
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Wide range of applications, seamlessly integrated to form assembled reactors
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Aesthetically pleasing appearance
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Flexible for relocation, expansion and recycling
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Simple maintenance and service life in excess of 30 years
Frequently Asked Questions
What is a Glass Fused to Steel (GFS) tank?
A Glass Fused to Steel tank is a bolted storage tank made by permanently fusing a silica-based glass enamel to a high-strength steel substrate at temperatures around 820°C (1500°F). This process creates a molecular bond that combines the structural strength of steel with the superior corrosion resistance of glass.
What is the service life of a Glass Fused to Steel tank?
GFS tanks are engineered for long-term performance, with a service life of more than 30 years under normal operating conditions. Their durable enamel coating and high-strength steel substrate contribute to their exceptional longevity with minimal maintenance requirements.
What pH range can GFS tanks handle?
Standard grade GFS tanks can handle a pH range of 3 to 11, making them suitable for most municipal and industrial applications. For more demanding chemical environments, special grade tanks are available that can withstand a pH range of 1 to 14.
What industries use Glass Fused to Steel tanks?
GFS tanks are used across a wide range of industries, including municipal water and wastewater treatment, industrial process water storage, anaerobic digestion and biogas production, agricultural slurry and feed storage, and bulk solids containment. Their versatility makes them a preferred solution in both public and private sector projects.
How does the anti-corrosion coating of GFS tanks work?
The enamel coating on GFS tanks forms a highly inert inorganic glaze layer that is chemically resistant to corrosion, vapor phase corrosion, and abrasive wear. The smooth surface also prevents scaling and biological buildup, making it ideal for storing wastewater, sludge, and other corrosive media.
Can GFS tanks be relocated or expanded after installation?
Yes. One of the key advantages of Glass Fused to Steel bolted tanks is their modular, bolt-together design. This makes them highly flexible — they can be disassembled, relocated to a new site, expanded in capacity, or reconfigured to meet changing operational needs, offering significant cost and logistical benefits over traditional welded or concrete tanks.