Center Enamel: China's Leading Potable Water Tanks Manufacturer — Engineering Purity and Reliability for Global Water Security

Center Enamel: China's Leading Potable Water Tanks Manufacturer — Engineering Purity and Reliability for Global Water Security

Safe drinking water is the foundation of public health, economic development, and sustainable communities worldwide. As urbanization accelerates and water scarcity intensifies, reliable potable water storage infrastructure has never been more critical. Center Enamel, through its parent company Shijiazhuang Zhengzhong Technology Co., Ltd., stands as China's leading manufacturer of potable water tanks, delivering Glass-Fused-to-Steel (GFS) solutions that meet the world's most stringent safety and quality standards. With over 35 years of innovation, Center Enamel has supplied more than 30,000 projects in 100+ countries, ensuring clean water storage for municipalities, industries, and remote communities alike.

The Critical Role of Potable Water Tanks

Potable water tanks serve as vital reservoirs in water distribution systems, bridging treatment plants and end‑users while providing emergency reserves, pressure stabilization, and fire protection. They must maintain water purity without introducing contaminants, withstand environmental stresses, and comply with rigorous health standards like NSF/ANSI 61 for material safety, AWWA D103 for bolted tank design, and WRAS for UK water regulations.

Key challenges include preventing bacterial growth, resisting corrosion from chlorinated water, ensuring structural integrity against seismic and wind loads, and facilitating easy maintenance. Center Enamel addresses these with GFS technology, where vitreous enamel is fused to steel at 820–930°C, creating a smooth, non‑porous surface that safeguards water quality for decades. This makes Center Enamel's tanks the preferred choice for municipal systems, rural water supply, disaster relief, and industrial potable water needs.

Center Enamel's Legacy of Excellence

Since its founding in 1989, Center Enamel has pioneered GFS tank manufacturing in China, evolving into Asia's largest producer with a 150,000 m² facility capable of 300,000 enamel panels annually. The company's potable water tanks are NSF/ANSI 61 certified for drinking water contact, WRAS approved, and compliant with ISO 28765, AWWA D103-09, and other global benchmarks, ensuring universal acceptance.

• Over 30 years of potable water tank expertise, with tanks designed for 30+ year lifespans under harsh conditions.
• Global footprint: Projects in municipal supplies, agricultural systems, industrial facilities, and emergency reserves across six continents.
• Certifications: NSF/ANSI 61 (U.S.), WRAS (UK), ISO 9001/14001/45001, confirming no leaching of harmful substances and optimal water quality preservation.

Center Enamel's mission—"Engineering Excellence for Environmental Harmony"—drives its commitment to hygienic, durable storage that protects public health while minimizing environmental impact.

GFS Technology: The Gold Standard for Potable Water

GFS combines steel's strength with glass's inertness, producing tanks that excel in potable water service. The enamel coating (0.25–0.45 mm thick) bonds chemically to steel, achieving 6.0 Mohs hardness and adhesion >3450 N/cm², resisting scratches, UV degradation, and chemical attack from disinfectants.

Unlike concrete (prone to cracking) or epoxy (short lifespan), GFS tanks pass 1500V holiday tests for pinhole-free integrity, ensuring leak-proof performance.

Applications Across Potable Water Systems

Center Enamel's potable water tanks support diverse applications, from urban infrastructure to remote solutions.

Municipal Water Systems

Large GFS tanks (up to 25,000 m³) store treated water for distribution, with geodesic aluminum domes for weather protection and cathodic systems for longevity.

Industrial and Commercial Use

Food/beverage plants, hotels, and hospitals rely on hygienic GFS tanks for on‑site potable storage, meeting NSF/ANSI 61 for process water safety.

Rural and Emergency Supply

Modular tanks deploy rapidly for villages, disaster relief, or agricultural irrigation, with UV‑resistant coatings for outdoor durability.

Fire Protection and Pressure Management

Elevated or ground tanks stabilize pressure and provide reserves, engineered to AWWA seismic standards.

Design and Engineering Standards

Every Center Enamel potable water tank undergoes finite element analysis for loads (wind to 150 km/h, seismic Grade 9), with options for insulated roofs, ladders, overflows, and level indicators. NSF/ANSI 61 testing confirms no toxicological risks from materials, while WRAS verifies suitability for UK potable use.

• Hydrostatic testing at 125% operating pressure verifies integrity.
• Foundation designs adapt to soil types (ring beam or slab).
• Custom colors (cobalt blue, olive green) blend with landscapes.

Manufacturing Excellence and Quality Control

Center Enamel's 150,000 m² facility uses CNC enameling, robotic handling, and high‑temperature kilns for precision coating. Each panel undergoes adhesion, impact, and holiday spark testing, with third‑party verification from SGS/TÜV. Compliance with NSF/ANSI 61 involves rigorous extraction and toxicological evaluations to ensure zero health effects.

End‑to‑End Service

From feasibility studies to commissioning, Center Enamel offers comprehensive support: custom design, global logistics, on‑site installation, training, and lifecycle maintenance.

Why Center Enamel Leads

• Pioneer Status: China's first GFS potable tank maker.
• Global Certifications: NSF, WRAS, AWWA, ISO.
• Proven Durability: 30+ year lifespan.
• Scalability: 20 m³ to 50,000 m³ capacities.

Center Enamel invests in nano‑enamels, smart coatings, and hybrid systems to meet rising demands for water security amid climate change.

As China's leading potable water tanks manufacturer, Center Enamel engineers solutions that protect lives and sustain communities worldwide. With NSF/ANSI 61, WRAS, and AWWA compliance, GFS technology delivers purity, reliability, and value for generations.