Global Leading Glass-Fused-to-Steel Tanks Manufacturer
Created on 2024.10.24
Global Leading Glass-Fused-to-Steel Tanks Manufacturer: Center Enamel’s Legacy of Quality, Innovation, and Sustainability
For more than three decades, Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) has been a frontrunner in the global storage tank industry, setting benchmarks for quality, technical innovation, and environmental responsibility. As the first manufacturer of Glass-Fused-to-Steel (GFS) tanks in China, Center Enamel has built a worldwide reputation as a trusted provider of durable, high-performance storage solutions for water, wastewater, biogas, and industrial applications.
Center Enamel’s story began with a mission to pioneer advanced storage solutions for modern industries. the company quickly recognized the potential of glass-fused-to-steel technology—a process that combines the strength of steel with the durability and chemical resistance of glass—to deliver long-lasting containment solutions.
In 2008, Center Enamel launched its first independently developed GFS tank, introducing double-sided enameling technology for hot-rolled steel plates, a first in Asia. This innovation propelled the company to international prominence and positioned it as a technological leader in the bolted tank industry.
By 2017, Center Enamel had successfully fabricated and installed a record-breaking 34.8-meter-high GFS tank, marking another milestone in large-scale storage engineering. Today, with over 150,000 m² of production facilities and a dedicated R&D center, the company exports advanced tank systems to more than 100 countries, including the USA, Australia, Canada, Brazil, South Africa, Malaysia, and the United Arab Emirates.
Glass-Fused-to-Steel tanks result from a thermal fusion process, in which steel plates are coated with an inorganic enamel layer and fused at temperatures between 800°C–900°C. This process forms a permanent chemical bond between steel and glass, creating a surface that is non-porous, corrosion-resistant, and structurally robust.
This unique composite material offers numerous advantages over conventional welded steel or concrete tanks:· Unmatched Corrosion Resistance: The glass layer prevents the steel from direct contact with liquids or gases, delivering exceptional resistance to acids, alkalis, and chemicals across a pH range of 1–14
· Superior Durability: With a design life exceeding 30 years, GFS tanks are built for performance in even the harshest industrial and environmental conditions.
· Easy Installation and Maintenance: Modular bolted construction ensures rapid onsite assembly, reduced project timeframes, and minimal maintenance costs.
· Environmental Safety: The surface’s inert properties ensure no leaching or contamination, making these tanks ideal for potable water and environmentally sensitive projects.· Aesthetic Versatility:
Smooth, glossy enamel surfaces are available in multiple colors and resist UV fading, ensuring a lifetime of visual appeal while meeting architectural design needs.
At the heart of Center Enamel’s success lies its in-house research and development department, which drives continuous innovation. The company holds nearly 200 patents in enameling technology, coating formulations, and tank assembly systems—an achievement unmatched in the Asian bolted tank industry.
Key technological strengths include:
· Development of proprietary Ti-rich steel formulations that enhance enamel bonding and eliminate surface defects like blistering and “fish scaling.”
· Advanced furnace systems for uniform firing and precise temperature control, guaranteeing consistent coating adhesion and thickness.
· Application of high-precision CNC machining and laser profiling for seamless on-site assembly and structural alignment.
This technological edge ensures that Center Enamel remains a global reference point in both engineering excellence and tank innovation.
Center Enamel’s commitment to quality is validated through numerous international certifications and design standards:
· ISO 9001:2015 – Quality Management System
· ISO 28765 – Design of Enameled Steel Tanks for Water and Wastewater
· NSF/ANSI 61 – Certification for Drinking Water System Components
· WRAS Approval – UK water industry compliance for potable water tanks
· EN 1090 – European standard for structural steel fabrication· FM and NFPA
Compliance with these global standards guarantees that every GFS tank delivers consistent quality, reliability, and environmental stewardship. It also enables Center Enamel to meet diverse project requirements across over 100 international markets.
Center Enamel’s GFS tanks serve a wide variety of industries and applications, each requiring customized engineering solutions.
· Municipal Water Supply: Ideal for potable water reservoirs, these tanks provide hygienic, maintenance-free storage that supports urban water safety and sustainability goals.· Wastewater Treatment:
In municipal and industrial wastewater systems, GFS tanks efficiently store and process corrosive liquids and sludge. Their chemical resistance and easy cleaning extend operational life.
· Biogas and Renewable Energy: As anaerobic digesters and gas storage units, GFS tanks offer perfect gas-tightness, temperature stability, and corrosion protection, maximizing biogas yield.
· Industrial Liquids: For chemical plants, manufacturing, and mining industries, these tanks store highly corrosive or abrasive compounds safely and efficiently.
· Agricultural Use: Farm slurry, manure, and irrigation water storage benefit from the tanks’ integrity and ease of cleaning.
· Fire Protection Systems: Certified per NFPA 22 and FM, GFS tanks provide reliable long-term fire water storage for industrial, commercial, and municipal projects
Center Enamel is deeply committed to environmental sustainability throughout its operations. The combination of glass and steel—both recyclable materials—ensures that each tank contributes to a circular economy.
Other sustainability highlights include:
· Energy-Efficient Manufacturing: State-of-the-art enameling furnaces reduce energy consumption while maintaining coating consistency.
· Waste Reduction: Modular bolted construction eliminates material wastage and minimizes disruption to surrounding ecosystems.
· Long-Term Durability: The 30+ year lifespan prevents premature replacements, reducing carbon footprints over time.
· Safe Operation: Non-toxic materials guarantee safe interactions with water and soil.
Center Enamel’s manufacturing process aligns with international environmental standards, reinforcing its role as a global advocate for sustainable infrastructure.
Over the decades, Center Enamel has earned global recognition for delivering high-performance tanks to international clients such as Veolia, Paques, Coca-Cola, Sinopec, and Sabesp. Each project highlights the company’s capability to adapt its engineering expertise to diverse environments—from arid deserts to humid tropical regions.[5]
Whether in large municipal installations in the USA, desalination facilities in the Middle East, or wastewater projects across Southeast Asia, Center Enamel’s products consistently meet operational, safety, and environmental goals.
Center Enamel’s contribution extends beyond manufacturing. The company provides turnkey project support, including:
· Engineering Design: Tailored tank designs according to AWWA, Eurocode, and ISO standards.
· On-Site Technical Support: Professional installation supervision ensures flawless assembly and commissioning.
· Lifecycle Service: Maintenance guidance, inspections, and spare parts support for the full service life of the tank.
With multilingual technical teams and global offices, Center Enamel ensures seamless communication and coordination with clients worldwide.
1. First and Most Experienced GFS Manufacturer in China: The pioneer of double-sided enameling and Asia’s largest GFS production base.
2. Unrivaled Production Capacity: Over 150,000 m² of facilities and the ability to produce 60 complete tank sets per month.
3. Comprehensive Certification: Compliance with over a dozen international standards and accreditations.
4. Global Export Leadership: Installations in 100+ countries and growing.
5. Innovation and R&D Investment: Nearly 200 patents advancing tank technology.
6. Sustainability-Centric Manufacturing: Eco-friendly production processes and recyclable materials.7. Customer-Centric Service Model:
Looking Ahead: Center Enamel’s Vision for the Future
As worldwide demand for sustainable infrastructure grows, Center Enamel is expanding its global presence through partnerships, green technologies, and digital integration. The company continues to explore innovations such as smart monitoring systems, real-time corrosion diagnostics, and AI-driven predictive maintenance for tanks of the future.
By combining precision engineering, advanced coating science, and sustainability-driven design, Center Enamel is not only meeting the needs of today but also shaping the future of global storage solutions.
With its deep manufacturing expertise, technological innovation, and global footprint, Center Enamel stands firmly as the global leading Glass-Fused-to-Steel tank manufacturer. The company’s legacy reflects three defining principles: quality without compromise, innovation through research, and sustainability for the planet.
From municipal water systems and wastewater treatment plants to energy and industrial projects, Center Enamel’s GFS tanks exemplify excellence that endures. As industries around the world embrace sustainable growth, Center Enamel remains the trusted partner behind the most advanced, efficient, and environmentally responsible storage solutions on the market.
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