As a leader in storage solutions, Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) has been dedicated to providing the highest-quality tanks for more than 30 years. Our Glass-Lined Steel (GLS) tanks are the pinnacle of durability, innovation, and environmental sustainability, offering an exceptional solution for a wide range of industries and applications.

Center Enamel is Asia’s most experienced manufacturer of bolted tanks, and we are proud to be the first in China to produce Glass-Fused-to-Steel (GFS) tanks. Our tanks, including the GLS variant, are recognized globally for their superior quality and performance, being exported to over 100 countries. With a dedicated R&D team and over 20 patents, Center Enamel ensures that each tank we manufacture meets the highest industry standards.

What Are GLS Tanks?

GLS (Glass-Lined Steel) tanks, also known as Glass-Fused-to-Steel tanks, are created by fusing glass to steel at extremely high temperatures. This process results in a tank that combines the strength and flexibility of steel with the chemical resistance and durability of glass. The glass coating acts as a protective barrier, preventing corrosion and ensuring a long-lasting, maintenance-free service life.

These tanks are designed for various storage applications, from potable water and wastewater to bio-energy and agricultural use. Their outstanding corrosion resistance and ease of installation make GLS tanks one of the most sought-after storage solutions on the market.

Key Benefits of Center Enamel GLS Tanks

Unmatched Corrosion Resistance

The fusion of glass to steel creates a highly durable, non-porous coating that is resistant to both chemical and environmental corrosion. This makes GLS tanks ideal for storing aggressive liquids such as wastewater, industrial effluents, and landfill leachate.

Long Service Life

GLS tanks are engineered to last. Their robust construction and resistance to corrosion extend their operational lifespan, reducing the need for frequent maintenance or replacements.

Fast and Efficient Installation

GLS tanks are delivered in modular panels, which can be quickly bolted together on-site. This allows for rapid installation, minimizing project timelines and costs.

Customizable Design

Center Enamel offers a wide range of GLS tank sizes and configurations, ensuring that we can meet the specific requirements of any project. Our tanks are available in capacities ranging from a few hundred cubic meters to large-scale industrial tanks.

Eco-Friendly and Sustainable

The durable nature of GLS tanks ensures minimal environmental impact, as their long service life reduces the need for frequent replacements. Additionally, the materials used in GLS tanks are fully recyclable.

Certifications and Quality Assurance

Center Enamel’s commitment to excellence is reflected in our wide range of international certifications. Our GLS tanks meet and exceed the most stringent global standards, including:

ISO 9001 – Quality Management Systems

CE – Compliance with European safety standards

NSF/ANSI 61 – Certification for drinking water system components

WRAS – Certification for potable water systems

ISO 28765 – Design of Glass-Fused-to-Steel tanks

LFGB – Food safety standards

BSCI – Business Social Compliance Initiative certification

ISO 45001 – Occupational health and safety management

Our tanks are designed and manufactured in strict accordance with international engineering standards such as AWWA D103-09, OSHA, NSF/ANSI 61, NFPA, and others. This ensures that every tank we produce meets the highest benchmarks for safety, performance, and longevity.

Applications of GLS Tanks

The versatility of GLS tanks makes them suitable for a wide range of industries and applications. These include:

Drinking and Potable Water Storage

GLS tanks are widely used in municipal and industrial settings for the safe storage of potable water. Their corrosion resistance and compliance with NSF/ANSI 61 standards make them ideal for this application.

Municipal and Industrial Wastewater Treatment

GLS tanks can withstand the harsh conditions of wastewater treatment, making them the perfect solution for both municipal and industrial effluent storage.

Bio-Energy and Anaerobic Digestion

Center Enamel GLS tanks are frequently used in bio-energy projects, particularly for the storage of biogas and as part of anaerobic digestion systems.

Agricultural Storage

From irrigation water to slurry and fertilizer storage, GLS tanks provide an economical and durable solution for agricultural needs.

Landfill Leachate Containment

The chemical resistance of GLS tanks makes them ideal for containing landfill leachate, offering a safe and secure option for environmental management.

Why Choose Center Enamel GLS Tanks?

With over three decades of experience, Center Enamel is recognized as the leader in the GFS and GLS tank industry. Our expertise ensures that our tanks are designed and manufactured to meet the unique needs of each project.

Center Enamel is the only GFS tank manufacturer in China that also produces its own enamel frit. This allows us to maintain full control over the production process, ensuring the highest quality enameling and product consistency.

Our GLS tanks have been successfully installed in more than 100 countries worldwide. We have partnered with major corporations such as Paques, Veolia, Coca-Cola, Wilmar, PetroChina, Heineken, AbInBev, Porsche, and Sinopec, providing them with high-quality storage solutions.

Our GLS tanks adhere to globally recognized standards such as AWWA D103-09, ISO 28765, and NSF/ANSI 61, ensuring that they meet the highest safety and performance requirements for a variety of applications.

At Center Enamel, we pride ourselves on providing exceptional customer service. From project consultation and design to installation and after-sales support, we are committed to delivering the best experience for our clients.

Partner with Center Enamel for Superior GLS Tank Solutions

At Shijiazhuang Zhengzhong Technology Co., Ltd, we are dedicated to providing the highest quality GLS tanks to meet the diverse needs of industries worldwide. Whether you're looking for a reliable solution for potable water storage, wastewater treatment, bio-energy, or agricultural applications, Center Enamel offers the expertise, innovation, and service to ensure your project’s success.

For more information about our GLS tanks and how we can support your project, contact Center Enamel today!