Glass-Fused-to-Steel (GFS) Liquid Fertilizer Storage Tanks by Center Enamel: Advanced Corrosion-Resistant Solutions for Safe Fertilizer Storage

Glass-Fused-to-Steel (GFS) Liquid Fertilizer Storage Tanks by Center Enamel: Advanced Corrosion-Resistant Solutions for Safe Fertilizer Storage

Liquid fertilizers, such as Urea Ammonium Nitrate (UAN), ammonium thiosulfate, and specialty blends, are widely used in modern agriculture due to their efficiency and ease of application. However, their corrosive nature presents a significant challenge in storage, requiring tanks with superior chemical resistance and durability. Shijiazhuang Zhengzhong Technology Co., Ltd, operating as Center Enamel, offers cutting-edge Glass-Fused-to-Steel (GFS) liquid fertilizer storage tanks that combine the robustness of steel with the corrosion resistance of glass enamel coating, ensuring safe, long-term storage.

As a leading storage tank manufacturer worldwide. Center Enamel can provide Glass Lined Steel(GLS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs, Wastewater and Biogas Project Equipments for global customers.

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Understanding Glass-Fused-to-Steel Technology

GFS tanks are manufactured by applying a molten glass enamel coating, at temperatures of 820°C to 930°C, to both interior and exterior surfaces of hot-rolled steel panels. This process creates a chemical bond between glass and steel, resulting in an inert, durable, and corrosion-resistant coating that combines the structural strength of steel with the chemical inertness of glass.

The technology addresses the aggressive nature of liquid fertilizers which degrade conventional steel tanks through pitting, chemical attack, and abrasion. GFS tanks withstand acidic and alkaline environments typical of fertilizers, maintaining structural integrity and water quality.

Technical Specifications of GFS Liquid Fertilizer Storage Tanks

• Steel Base Material: Hot-rolled low carbon steel plates, thickness from 3 mm to 12 mm depending on tank size.
• Glass Enamel Coating: Thickness between 0.25 mm to 0.45 mm on both internal and external surfaces.
• Corrosion Resistance: Certified resistant to a pH range from 1 to 14 (special coatings available).
• Hardness: 6.0 Mohs, providing excellent abrasion resistance.
• Adhesion Strength: Over 3450 N/cm² ensuring coating longevity.
• Permeability: Impermeable to liquids and gases, preventing contamination and leakage.
• Holiday Test Voltage: Exceeds 1500 V for coating integrity assurance.
• Color Options: Standard choices include cobalt blue, forest green, desert tan, and customized colors for site-specific needs.
• Service Life: Estimated over 30 years under industrial fertilizer storage conditions.
• Sizes: Adjustable capacities from a few cubic meters to 18,000 m³ or larger on request.

Design and Construction Features

• Modular Bolted Design: Prefabricated panels assembled onsite using high-strength bolts and chemical resistant gaskets, enabling rapid installation and future scalability.
• Roof Options: Glass-fused steel roofs, aluminum geodesic domes, or fiberglass deck roofs offering protection against environmental elements.
• Accessories: Manholes, inspection platforms, level indicators, venting systems, and piping flanges customizable per application.
• Installation Methods: Use of hydraulic jacks to sequentially install panel rings ensuring structural uniformity and minimal onsite welding.

Global Certifications and Compliance

Center Enamel’s GFS liquid fertilizer tanks comply with stringent international standards ensuring safety and performance:

• ISO 9001: Quality management system.
• AWWA D103-09: Standard for bolted steel tanks for potable and other water industries.
• NSF/ANSI 61: Drinking water system components certification ensuring no harmful constituents leach into stored liquids.
• WRAS: UK water regulation advisory scheme certification.
• FM Approvals: Factory mutual standards for fire safety.
• CE/EN1090: European structural steel standards.
• OSHA: Occupational safety and health standards.

Applications of GFS Liquid Fertilizer Storage Tanks

• Urea Ammonium Nitrate (UAN) Storage: Exceptional corrosion resistance for UAN 28%, 30%, and 32% commonly used formulations.
• Ammonium Thiosulfate Solutions: Tanks protect against sulfurous chemical corrosion.
• Liquid Starters and Specialty Fertilizers: Handling aggressive nutrient blends for early season or specialty crops.
• Agricultural and Bulk Distribution Storage: Centralized fertilizer farms and blending terminals.
• Mixed Fertilizer Solutions: Safe storage of additive mixtures without degradation or contamination.

Advantages of Center Enamel GFS Fertilizer Tanks

• Superior Corrosion Resistance: The fused glass enamel coating resists pitting, cracking, and chemical attack, upholding tank longevity.
• High Durability: Steel substrate ensures tank structural integrity under hydrostatic pressure and transport vibration.
• Easy Maintenance: Cleaning and inspection are streamlined by smooth, non-porous inner surfaces and modular design.
• Environmental Safety: Leak- and vapor-proof construction prevents soil and groundwater contamination.
• Operational Cost Efficiency: Long service life and low maintenance reduce total cost of ownership compared with coated or plastic tanks.
• Customizable Solutions: Tank sizes and accessories tailored for project requirements worldwide.

Manufacturing Excellence at Center Enamel

Leveraging nearly two decades of industry leadership and nearly 200 patented technologies, Center Enamel:

• Employs sophisticated glass enameling kilns with precise temperature and coating thickness control.
• Performs multi-stage quality inspections using holiday detection, adhesion testing, and impact resistance analysis.
• Delivers modular kits for fast site assembly, installation supervision, and after-sales servicing.

Maintenance and Best Practices

• Schedule regular interior inspections to detect early coating wear or surface damages.
• Employ non-abrasive cleaning technologies to preserve enamel surface.
• Monitor sealing gaskets and bolts for integrity and replace as required.
• Manage water parameters (pH, turbidity, microbial levels) to maintain stored fertilizer quality.

Future Perspectives

Center Enamel is actively developing smart sensor integration for real-time monitoring of tank conditions and stored fertilizer quality. Sustainability efforts focus on eco-friendly enamels and reducing carbon footprint of tank production.

Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) sets the global benchmark in liquid fertilizer storage solutions via its Glass-Fused-to-Steel technology. Widely certified, technologically advanced, and proven in diverse applications, Center Enamel’s GFS liquid fertilizer tanks offer unmatched durability, safety, and efficiency essential for modern agriculture’s evolving demands.

Contact Center Enamel’s expert team for consultation and tailored GFS liquid fertilizer storage tank solutions that meet and exceed your operational requirements.

Shijiazhuang Zhengzhong Technology Co.,Ltd is a professional manufacturer dedicated to the design and fabrication of bolted storage tanks since 1989. Our products range includes Glass-Fused-to-Steel (GFS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs. With professional enameling R&D team and more than 20 enameling patents, Shijiazhuang Zhengzhong Technology Co.,Ltd has become the leader in bolted tanks industry of Asia. Our products are certified to ISO 9001, CE, NSF/ANSI 61, WRAS, ISO 28765, LFGB, BSCI, ISO 45001 and other international standards.

Shijiazhuang Zhengzhong Technology Co., Ltd is not only the first manufacturer in China which produces Glass-Fused-to-Steel tanks, but also the most experienced professional bolted tanks manufacturer in Asia. The engineering & design, product testing and quality system of Center Enamel Glass-Fused-to-Steel tanks is in strict accordance with AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards. Center Enamel Glass-Fused-to-Steel tanks are wildly used in drinking / potable water, industrial effluents, municipal sewage, bio-energy, landfill leachate, agriculture and other applications. Until 2023, Center Enamel bolted tanks have been exported to more than 100 countries including USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil and South Africa etc., the superior tank quality and prompt service gains us worldwide recognition.

As an outstanding containment and cover system provider with more than 30 years of experience, Shijiazhuang Zhengzhong Technology Co., Ltd sincerely expects to establish long-term cooperation with the local partners throughout the world and make continuous contribution to the development of the industry.