China GFS Tanks for Municipal Wastewater - Durable Solutions from Reliable Suppliers and Factory
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 fusing a specially formulated silica-based glass enamel to a high-strength steel substrate at approximately 820°C (1500°F). This process creates a permanent molecular bond that combines the structural strength of steel with the superior corrosion resistance of glass.
What are the main advantages of GFS tanks for wastewater treatment?
GFS tanks offer excellent anti-corrosion performance — including resistance to liquid-phase corrosion, vapor-phase corrosion, and coefficient wear. Their smooth enamel surface also prevents scaling, making them ideal for municipal and industrial wastewater treatment applications.
What pH range can GFS tanks handle?
Standard grade GFS tanks are rated for a pH range of 3 to 11. For more demanding chemical environments, special grade tanks are available that can handle a pH range of 1 to 14, covering nearly all industrial and municipal liquid storage needs.
How long is the service life of a Glass Fused to Steel tank?
GFS tanks are engineered for a service life of more than 30 years. Their durable enamel coating — with a hardness of 6.0 Mohs and coating thickness of 250–450µm — provides long-lasting protection with minimal maintenance requirements.
What industries and applications are GFS tanks suitable for?
GFS tanks are suitable for a wide range of applications including municipal drinking water storage, sewage and sludge treatment, industrial wastewater and process water storage, anaerobic digestion and biogas systems, as well as agricultural slurry and bulk solids storage.
Can GFS tanks be relocated or expanded after installation?
Yes. One of the key advantages of bolted GFS tanks is their modular design, which allows them to be disassembled, relocated, or expanded with relative ease. This flexibility makes them a cost-effective long-term investment compared to traditional concrete or welded steel tanks.