China’s Leading Seawater Tanks Manufacturer: Center Enamel Delivering Durable Storage Solutions for Marine and Desalination Projects Worldwide

As coastal development, offshore engineering, and seawater desalination accelerate worldwide, the demand for reliable, corrosion-resistant seawater storage tanks has never been greater. Seawater presents one of the most aggressive storage environments due to its high salinity, chloride content, biological activity, and continuous exposure to harsh marine climates. In this challenging field, Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel) has established itself as China’s leading seawater tanks manufacturer, delivering advanced Glass-Fused-to-Steel (GFS) and bolted steel tank solutions engineered for long-term performance in marine environments.

With more than 17 years of industry experience, nearly 200 proprietary enameling patents, and projects completed in over 100 countries, Center Enamel provides seawater storage tanks that meet the highest international standards for durability, safety, and lifecycle value.

As a leading storage tank manufacturer in China. At Shijiazhuang Zhengzhong Technology Co., Ltd., we excel in providing high-quality bolted steel tanks tailored for the diverse needs of fish farming. Our extensive range of bolted steel tanks includes Glass-Fused-to-Steel (GFS) tanks, fusion bonded epoxy tanks, stainless steel tanks, and galvanized steel tanks, each designed to offer exceptional durability, efficiency, and adaptability for aquaculture applications.

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Addressing the Unique Challenges of Seawater Storage

Seawater storage differs significantly from freshwater or wastewater containment. High concentrations of chlorides, sulfates, and dissolved salts accelerate corrosion, while marine humidity, temperature fluctuations, and biological fouling further intensify material degradation.

Traditional solutions such as concrete tanks, rubber-lined steel tanks, or epoxy-coated steel structures often suffer from:

Rapid corrosion and coating failure

Cracking and leakage under cyclic loading

High maintenance costs

Limited service life in coastal environments

Center Enamel recognized these limitations early and developed advanced seawater tank solutions specifically designed to withstand the harsh chemical and mechanical conditions associated with seawater storage.

Glass-Fused-to-Steel Technology: The Ideal Solution for Seawater Tanks

At the core of Center Enamel’s seawater tanks is its proprietary Glass-Fused-to-Steel (GFS) technology, a coating process in which molten glass is fused to specially prepared steel plates at temperatures between 820°C and 930°C.

This high-temperature fusion creates a permanent chemical bond between glass and steel, resulting in a surface that is:

Highly resistant to chloride-induced corrosion

Inert to chemical reactions

Smooth and impermeable

Resistant to abrasion and biological fouling

The glass coating acts as a barrier between the steel substrate and aggressive seawater, while the steel provides structural strength and flexibility. This combination makes GFS tanks one of the most reliable solutions for long-term seawater storage.

Designed Specifically for Marine and Coastal Environments

Center Enamel seawater tanks are engineered with a deep understanding of marine conditions and international design requirements.

Structural Engineering Excellence

All seawater tanks are designed in accordance with AWWA D103, EN 1090, ISO 28765, EUROCODE, and relevant marine standards, ensuring resistance to:

Internal hydrostatic pressure

Wind loads and typhoon conditions

Seismic activity

Thermal expansion and contraction

This robust engineering ensures structural stability and safety even in exposed coastal and offshore locations.

Modular Bolted Tank Construction

Center Enamel employs a modular bolted design, allowing tanks to be:

Easily transported to remote coastal or island locations

Quickly assembled on site

Expanded or relocated as project requirements evolve

This construction method significantly reduces installation time and civil works compared to welded or cast-in-place tanks.

Superior Corrosion Resistance in High-Salinity Environments

Seawater tanks must resist continuous exposure to chlorides, which are notorious for causing pitting and crevice corrosion in steel structures. Center Enamel’s Glass-Fused-to-Steel coating provides exceptional resistance to chloride attack, maintaining integrity where conventional coatings fail.

Additional performance advantages include:

Excellent resistance to UV radiation

No blistering, delamination, or under-film corrosion

Stable performance across a wide pH range

Long-term resistance to biofouling

These features ensure a service life of 30 years or more, even in aggressive marine environments.

Comprehensive Seawater Storage Solutions

As China’s leading seawater tanks manufacturer, Center Enamel delivers complete containment and cover systems, not just tank shells.

Available configurations include:

Seawater intake and buffer tanks

Desalination plant feedwater tanks

Cooling water storage tanks

Firefighting seawater tanks

Ballast water and industrial seawater storage tanks

Roof and cover options:

Aluminum geodesic dome roofs

Glass-Fused-to-Steel steel roofs

Flat covers and custom-designed enclosures

Accessories such as manholes, flanges, ladders, platforms, and pipe penetrations are engineered to meet marine and industrial standards.

International Certifications and Global Compliance

Seawater tank projects often require strict adherence to international codes, particularly in desalination plants, power stations, and offshore facilities.

Center Enamel seawater tanks comply with a wide range of international standards and certifications, including:

ISO 9001 – Quality Management System

ISO 28765 – Enamel coatings for steel tanks

CE / EN 1090 – Structural steel compliance

NSF/ANSI 61 – Material safety (when applicable)

WRAS – Water regulations approval

FM – Factory Mutual certification

ISO 45001 – Occupational health and safety

These certifications ensure acceptance in global markets such as Europe, North America, the Middle East, Australia, Southeast Asia, Africa, and Latin America.

Proven Track Record in Global Seawater Projects

Center Enamel has supplied seawater tanks for numerous international projects, including:

Seawater desalination plants

Coastal industrial parks

Power plants using seawater cooling systems

Offshore and nearshore facilities

Island water supply and emergency storage systems

With exports to more than 100 countries, Center Enamel has demonstrated its ability to deliver high-quality seawater tanks under diverse environmental and regulatory conditions.

Cost Efficiency and Long-Term Value

From a lifecycle perspective, Center Enamel seawater tanks offer outstanding economic advantages.

Reduced Installation Costs

The modular bolted design minimizes:

On-site welding

Heavy construction equipment

Extended project timelines

Low Maintenance Requirements

The inert glass surface requires:

Minimal recoating

No cathodic protection systems

Reduced inspection and repair frequency

Long Service Life

With a design life of 30 years or more, Center Enamel seawater tanks deliver superior return on investment compared to conventional alternatives.

Advanced Manufacturing and Quality Control

Center Enamel operates one of the most advanced enameling manufacturing bases in Asia, covering more than 150,000 square meters.

Manufacturing strengths include:

Automated enameling production lines

Precision forming and cutting equipment

Strict quality inspections at every stage

High-voltage holiday testing

Thickness and adhesion verification

Nearly 200 patented enameling technologies support continuous product improvement and performance consistency.

Engineering Support and Global Service Capability

Center Enamel provides comprehensive support throughout the project lifecycle, including:

Engineering consultation and tank selection

Structural and foundation interface guidance

Installation supervision and training

Long-term technical support and after-sales service

With extensive international project experience, Center Enamel understands the technical, logistical, and regulatory challenges of marine projects worldwide.

Supporting Sustainable Water and Coastal Development

Seawater tanks play a critical role in sustainable water infrastructure, particularly in desalination and coastal water management projects.

Center Enamel seawater storage solutions support:

Reliable desalination plant operation

Emergency and backup water storage

Efficient seawater cooling systems

Reduced environmental impact through durable infrastructure

By delivering long-lasting, corrosion-resistant tanks, Center Enamel contributes to the sustainable development of coastal and island communities.

The Trusted Partner for Seawater Storage Worldwide

Through continuous innovation, uncompromising quality standards, and a global service mindset, Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel) has earned its reputation as China’s leading seawater tanks manufacturer.

With advanced Glass-Fused-to-Steel technology, international certifications, and proven performance in demanding marine environments, Center Enamel is the trusted partner for EPC contractors, desalination plant developers, utilities, and industrial operators worldwide.

As global demand for seawater storage and desalination infrastructure continues to grow, Center Enamel remains committed to delivering durable, efficient, and future-ready seawater tank solutions that stand the test of time.