
Rapid urbanization and demographic expansion across South America require robust advancements in public utility frameworks. In municipal water engineering, protecting treated potable water from external contamination and structural degradation is critical.
Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel), a premier global bolted storage tank manufacturer, successfully delivered and commissioned high-capacity Glass-Fused-to-Steel (GFS) tanks integrated with aluminum geodesic dome roofs for the Colombia Potable Water Project. This utility infrastructure installation provides a reliable, secure, and hygienic water supply for local communities, highlighting the role of modular engineering in sustainable development.
The multi-tank deployment in Colombia was custom-engineered to meet structural load variations, local seismic parameters, and large-scale volumetric storage needs. The infrastructure consists of specialized GFS processing and storage vessels:
Asset Designation | Dimensional Profile (Diameter × Height) | Structural Roof Configuration | Primary Process Role |
Tank Set 01 | 25.22 x 6.0m | Aluminum Geodesic Dome | Large-scale regional distribution buffering |
Tank Set 02 | 18.34 x 6.0m | Aluminum Geodesic Dome | Localized hydraulic equalizing storage |
Tank Set 03 | 22.17 x 6.0m | Aluminum Geodesic Dome | Emergency reserve and pressure balancing |
The modular bolted structures feature an elegant dark blue vitreous enamel finish, delivering both high technical performance and a clean aesthetic profile that integrates cleanly with local municipal environments.
For international drinking water infrastructure, traditional concrete or field-painted welded steel tanks introduce long-term risks, including crack-induced micro-leakage, chemical leaching, and high maintenance costs. Center Enamel's GFS technology replaces these older options with a high-durability alternative.
The steel panels used in the Colombia project utilize high-strength carbon steel sheets rolled to strict geometric tolerances. In a controlled factory environment, a specialized silica glass enamel slurry is applied to both sides of the plate and fired at temperatures ranging from 800 °C to 850 °C.
This extreme thermal process drives a molecular cross-linking reaction, fusing the glass coating into the steel substrate. The resulting material combines the structural strength of high-tensile steel with the total chemical inertness and corrosion resistance of physical glass.
The inner glass layer provides a smooth, non-reactive boundary with a low surface roughness index. This smoothness prevents organic sediment, mineral scale, and biological biofilms from adhering to the container boundaries. This simplifies routine maintenance flushing and minimizes the need for heavy chemical dosing, ensuring that municipal water maintains its purity from the treatment facility to the distribution grid.
To match the long service life of the GFS shell plates, Center Enamel integrated advanced clear-span aluminum geodesic dome roofs onto the Colombia tank sets.
● Clear-Span Structural Integrity: The triangulated space-frame geometry handles high wind and environmental forces while distributing structural loads evenly across the top rim of the tank shell. This design eliminates the need for internal support columns, removing column-to-floor leak paths and internal sediment accumulation points.
● Atmospheric Contamination Barrier: Fitted with custom-extruded batten bars and continuous EPDM gaskets, the roof creates a tight physical barrier against rain, bird nesting pathogens, insects, and wind-borne dust.
● Thermal Regulation: The highly reflective natural finish of the aluminum alloy panels helps minimize thermal absorption from direct sunlight. This aids in managing internal fluid temperatures and reduces the risk of accelerated bacterial growth in warm weather.
With over 30 years of specialized manufacturing experience and active distribution across more than 100 countries, Center Enamel manufactures its storage assets according to rigorous global validation criteria:
● AWWA D103: Standard for Factory-Coated Bolted Carbon Steel Tanks for Water Storage.
● NSF/ANSI 61: Drinking Water System Components - Health Effects (ensuring zero background extraction or chemical leaching into municipal supplies).
● ISO 28765: Vitreous and porcelain enamels — Design of bolted steel tanks for the storage or treatment of fluid or municipal or industrial effluents.
By deploying factory-fabricated components packed in flat configurations on specialized steel pallets, Center Enamel lowered international container shipping costs and sped up field construction times. Local assembly was completed rapidly using specialized vertical leveling jacks, ensuring the project became operational on schedule with minimal disruption to the local environment.
Global Leading Storage Tanks Manufacturer | Center Enamel
This introductory video highlights Center Enamel's automated factory production lines, advanced vitreous fusion processes, and international engineering certifications for municipal water storage projects.