Glass-Fused-to-Steel tanks showcase numerous notable advantages in the field of storage tanks, making them an ideal tank solution:

Corrosion Resistance: Utilizing Glass-Fused-to-Steel technology, Glass-Fused-to-Steel tanks combine the strength of steel with the corrosion resistance of glass, performing exceptionally well in harsh environments and effectively combating corrosion.

Water Impermeability: Glass-Fused-to-Steel tanks exhibit outstanding water impermeability for liquids and steam, ensuring the safety and integrity of stored substances.

Impact Resistance and Wear Resistance: They provide excellent impact resistance and wear resistance, maintaining structural integrity when facing external pressure and physical wear.

Long-Lasting Color: The coating on the tank's surface maintains its color durability, resisting fading or chalking, and exhibits good resistance to graffiti, facilitating easy cleaning.

Cost-Effective: Adopting a modular bolted connection design, Glass-Fused-to-Steel tanks are quicker and more cost-effective to install on-site, reducing overall project costs and equipment requirements.

Long Service Life: The design life of Glass-Fused-to-Steel tanks exceeds 30 years.

Minimal Maintenance Requirements: GFS tanks require minimal maintenance during use, reducing operating costs and enhancing long-term economic viability.

Wide Applications: Suitable for various industries, including bioenergy, municipal sewage, landfill leachate, and industrial wastewater treatment, meeting the diverse needs of different sectors.

These advantages make GFS tanks a reliable choice for long-term use in challenging conditions, earning widespread recognition from engineers, contractors, and clients globally.

Glass-Fused-to-Steel tanks (GFS tanks), also known as glass-lined steel tanks (GLS tanks), are an advanced storage tank solution. They are produced by firing at a high temperature of 820°C-930°C, causing the molten glass to react with the surface of the steel plate. This process fully leverages the optimal performance of both materials, forming a robust and corrosion-resistant bond. The technique seamlessly combines the strength and flexibility of steel with the excellent corrosion resistance of glass, enabling Glass-Fused-to-Steel tanks to provide years of service in harsh environments. Compared to traditional fusion bonded epoxy tanks or welded steel tanks, GFS tanks have several advantages. We also offer various accessories to meet the needs of your facility, such as manholes, flanges, top cover handles, tank maintenance ladders, and platforms.

International Certifications Ensuring The High Quality

Glass-Fused-to-Steel technology is an advanced coating technology in the tank market. The molten glass coating endows the product with outstanding corrosion resistance and wear resistance, validated through decades of installations. The modular bolted connection design of GFS tanks makes them more economically efficient in on-site installation. and Shijiazhuang Zhengzhong Technology Co.,Ltd Glass Fused to Steel tanks (GFS tanks)conform to AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards , and are widely used in bio-energy, municipal sewage, landfill leachate and industrial wastewater treatment etc. applications

Glass-Fused-to-Steel Tanks Advantages

Center Enamel has earned industry acclaim for its glass-fused products with zero discontinuity, dedicating itself to providing reliable, durable, and defect-free products through the highest quality standards. The Glass-Fused-to-Steel tanks produced by the company not only comply with international standards such as AWWA D103-09, OSHA, ISO 28765, NFPA, but also offer customers a choice that meets the industry's highest specifications.
Center Enamel's GFS tanks adhere to the highest product quality standards, undergoing rigorous independent certification to ensure compliance with, and even surpassing, international enamel standards. During the manufacturing process, all industrial-grade coatings undergo thorough 100% inspection and precise electrical testing of the coating surface. In Center Enamel's highly controlled factory environment, any panel identified as having discontinuity under testing voltage is decisively rejected to ensure the product's flawlessness.
Shijiazhuang Zhengzhong Technology Co.,Ltd Glass Fused to Steel tanks (GFS tanks)conform to AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards ,and they have also received certification from the Technology Promotion Center of the Ministry of Water Resources of China. They are listed in the "Key Promotion Guidance Catalog for Advanced and Practical Water Conservancy Technologies in 2021." This attests to Center Enamel's commitment to product quality and relentless pursuit of advanced technology.

Center Enamel Glass Fused To Steel Tanks Specifications

Color Options Of Center Enamel Glass Fused To Steel Tanks

Grey Olive

Evening Haze

Desert Tan

Cobalt Blue


Forest Green

Black Blue

Glass-Fused-to-Steel Tank Installation

The installation of Glass-Fused-to-Steel tanks is a process that emphasizes the stability of the foundation, ensuring the tank body and the stored products can be securely supported on the ground. Here are the brief installation steps:

Preparation Phase: Clean and prepare the installation site, creating a level surface.Start by applying a solid foundation of sand or crushed stone, followed by constructing a circular concrete wall or a complete concrete pad.Foundation work can be completed by the customer or professional tank installation personnel, preferably before the delivery of all tanks.

Construction Phase: Once the foundation is prepared, tank panels are erected layer by layer, starting from the bottom.Ensure the steel plates are clean and dry during bonding, promptly replacing any loose bolts.After completing the assembly of the bottom layer, secure it to the foundation using reinforcement bars.Proceed to assemble the second layer, connecting it to the bottom layer using a jack. Wind braces are installed after connecting every two layers to ensure the overall tank structure is stable.Add accessories such as valves, doors, or manhole covers as needed, and finally, install the roof of the tank.

Testing and Maintenance: After completing the tank assembly, conduct a leak test to ensure the integrity and safety of the tank.Regular maintenance is crucial, including inspections, cleaning, leak monitoring, and damage checks, to extend the tank's lifespan and maintain its proper functioning.

GFS tanks offer advantages over traditional concrete or welded storage solutions, with rapid installation, lower transportation costs, and the ability to be assembled in almost any weather conditions, reducing weather-related delays.

Glass-Fused-to-Steel Tank Applications


Glass-Fused-to-Steel tanks represent a versatile storage solution applicable to a wide range of industries. Their characteristics and advantages make them an ideal choice for various sectors. Here are the primary application areas for enamel-assembled tanks:

Water and Wastewater Treatment: GFS tanks are widely used in water and wastewater treatment for storing clean water, process water, and wastewater. Their impermeability and corrosion resistance ensure the safe storage and processing of liquids.

Biogas Storage: For the storage of bio-gases, such as in the field of bioenergy, GFS tanks provide an ideal solution. The glass-fiber reinforced structure offers excellent sealing and corrosion resistance, ensuring the safe storage and management of bio-gases.

Firewater Applications: GFS tanks serve as reliable storage for firefighting water, ensuring an ample water supply in emergency situations to support firefighting efforts, thereby protecting lives and property.

Agricultural Applications: Used for storing liquid fertilizers, pesticides, irrigation water, etc., enamel-assembled tanks provide reliable liquid storage containers for agriculture, supporting the needs of modern agricultural production.

Mining Industry: GFS tanks can be employed for storing mining liquids, treating wastewater, and handling other liquid substances, providing a safe and durable storage solution for the mining industry, meeting its specific requirements.

The diverse applications of GFS tanks, coupled with their corrosion resistance, impact resistance, and cost-effectiveness, make them the preferred storage solution across various industries. They meet high standards for storage in different fields.

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Category          Specification

Coating Color       Black blue, Grey olive, Forest green, Cobalt blue, Desert tan etc.

Coating thickness                                0.25-0.45mm

Acid and alkalinity proof      Standard PH: 3~11, Special PH:1~14

Adhesion                                              3450N/cm²

Hardness                                               6.0 (Mohs)

Service life                                             ≥30 Years

Holiday test                                           >1500V

Permeability                                          Gas liquid impermeable

Easy to clean                                        Smooth, glossy, inert, anti-adhesion

Corrosion resistance                             Excellent, suitable for harsh environment