GFS Tanks for Municipal Wastewater: Top China Suppliers & Factory Solutions for Durability and Corrosion Resistance
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
- Fast installation and short construction period
- Excellent anti-corrosion properties
- Low construction environment requirements
- Strong temperature adaptability
- Wide range of applications, seamlessly integrated to form assembled reactors
- Aesthetically pleasing appearance
- Flexible for relocation, expansion and recycling
- Simple maintenance and service life in excess of 30 years
Frequently Asked Questions
Q
What is a Glass Fused to Steel (GFS) tank?
A Glass Fused to Steel tank is a bolted storage tank made by permanently bonding a specially formulated silica-based glass enamel to a high-strength steel substrate at temperatures around 820°C (1500°F). This process creates a highly inert inorganic glaze layer that combines the structural strength of steel with the corrosion resistance of glass.
Q
Why are GFS tanks suitable for municipal wastewater treatment?
GFS tanks are ideal for municipal wastewater treatment because their electroplated enamel surface effectively resists corrosion, vapor phase corrosion, and coefficient wear simultaneously. The smooth surface is also not prone to scaling, making it a reliable and long-lasting solution for handling complex wastewater mixtures.
Q
What pH range can GFS tanks handle?
Standard grade GFS tanks can handle a pH range of 3 to 11. For more demanding applications, special grade tanks are available that can withstand a pH range of 1 to 14, making them suitable for highly acidic or alkaline environments.
Q
How long is the service life of a Glass Fused to Steel tank?
GFS tanks are designed for a service life of more than 30 years. Their durable glass-enamel coating with a hardness of 6.0 Mohs and coating thickness of 250–450um ensures long-term performance with minimal maintenance requirements.
Q
What industries can use Glass Fused to Steel tanks?
GFS tanks are used across multiple industries including municipal water and wastewater management, industrial wastewater treatment and process water storage, as well as agriculture for slurry storage, biogas production, and bulk solids storage such as hay, maize, and high-moisture grains.
Q
Can GFS tanks be relocated or expanded after installation?
Yes. One of the key advantages of GFS bolted tanks is their flexibility. They can be disassembled and relocated, expanded to increase capacity, or recycled at the end of their use. Their modular bolted design also allows for fast installation with a short construction period and low environmental requirements on-site.