China Suppliers and Factory of Bolted Steel Storage Tanks for Wastewater and Sewage Treatment 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 wastewater treatment systems.
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), combining the advantages of both materials — the strength and flexibility of steel and excellent anti-corrosion properties of glass.
The storage tanks made of GFS plates meet the requirements of municipal sewage tanks. They offer excellent corrosion resistance, a smooth inner wall that is not prone to scaling, and the ability to adapt to fluctuations in water volume (high structural strength requirements).
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 |
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
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.
Process Flow
The main equipment of the project uses enamel-lined modular tanks, with a production and installation period of 35 days. Manufactured and installed by Lida Technology, the modular enamel-lined steel plates are prefabricated in the factory, packed, and transported to the site. After safe and efficient installation, quality is controllable, and the standardization is high. Compared to concrete tanks, this significantly shortens the project time and improves the project's appearance. It also solves the problems of tight deadlines and urgent tasks in municipal emergency projects.
Frequently Asked Questions (FAQ)
❓ What is a Glass Fused to Steel (GFS) tank?
A Glass Fused to Steel (GFS) tank is a bolted storage tank made by fusing a specially formulated silica-based glass enamel to a steel substrate at extremely high temperatures (around 820°C / 1500°F). This process creates a permanent molecular bond, combining the structural strength of steel with the corrosion resistance of glass, making it ideal for wastewater treatment applications.
❓ What is the service life of a GFS tank?
GFS tanks are designed for long-term use, with a service life of more than 30 years. The durable glass enamel coating provides outstanding resistance to corrosion, scaling, and chemical attack, ensuring minimal maintenance requirements over the tank's lifetime.
❓ What pH range can GFS tanks handle?
Standard grade GFS tanks are suitable for environments with a pH range of 3 to 11. For more aggressive chemical conditions, a special grade is available that can handle a pH range of 1 to 14, making GFS tanks highly versatile for various industrial and municipal wastewater treatment applications.
❓ How long does it take to install a GFS tank?
One of the key advantages of GFS tanks is their fast installation. The modular enamel-lined steel plates are prefabricated in the factory, then transported and assembled on-site. For example, the municipal wastewater treatment project referenced on this page — with a capacity of 10,000 m³/day — was completed in just 35 days, significantly faster than traditional concrete tank construction.
❓ What are the main advantages of GFS tanks over concrete tanks?
Compared to concrete tanks, GFS tanks offer a much shorter construction and installation period, superior corrosion resistance (including vapor phase corrosion), a smooth inner surface that resists scaling, greater flexibility for relocation or expansion, and a more aesthetically pleasing appearance. They are also easier to maintain and have a comparable or longer service life.
❓ Are GFS tanks suitable for municipal sewage treatment?
Yes, GFS tanks are an excellent and proven choice for municipal sewage treatment. Their electroplated enamel surface effectively addresses corrosion, vapor phase corrosion, and wear simultaneously. The smooth, non-scaling inner wall and high structural strength make them well-suited to handle the large volumes, variable water quality, and corrosive gases typically found in municipal wastewater.