Effective wastewater management is a global imperative for public health and environmental compliance. Whether handling municipal sewage, aggressive chemical effluents, or agricultural runoff, the storage infrastructure must withstand prolonged exposure to corrosive and biologically active media.
Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel) provides a world-class solution: the Fusion Bonded Epoxy (FBE) Bolted Tank. By fusing high-strength steel with a proprietary, factory-applied epoxy coating, we deliver a containment system that balances rapid deployment with a 30-50 year service life.
Our epoxy-coated tanks are engineered to exceed standard paint or powder coating benchmarks, providing a chemically inert barrier for aggressive wastewater profiles.
Parameter | Specification / Range | Engineering Significance |
Coating Thickness | 200 – 400 Microns (Dual-side) | Robust, "Holiday-free" barrier against pitting. |
pH Resistance Range | pH 3 – pH 11 | Ideal for acidic and alkaline industrial effluents. |
Operating Temp. | -50°C to +60°C | Maintains structural ductility in extreme climates. |
Adhesion Strength | > 12 MPa (Pull-off test) | Resists delamination under high hydrostatic pressure. |
Hardness (Pencil) | > 2H | High resistance to scratching during assembly. |
Compliance | AWWA D103-09, ISO 28765 | Meets global safety and structural standards. |
In anaerobic sewage environments, Hydrogen Sulfide ($H_2S$) accumulates in the tank headspace, oxidizing into biogenic sulfuric acid.
● The Pain Point: Concrete and bare steel "rot" from the top down, leading to structural collapse.
● The Solution: Center Enamel’s FBE coating is chemically inert to these acidic concentrations. By applying a 400-micron factory seal, we eliminate the need for expensive secondary liners or sacrificial concrete layers.
In regions like the Philippines, structural rigidity is a liability.
● The Pain Point: Rigid concrete tanks micro-crack during seismic shifts, leading to groundwater contamination and environmental fines.
● The Solution: Our modular bolted design utilizes high-grade EPDM gaskets. This "modular flexibility" allows the tank to absorb lateral forces without fracturing, ensuring 100% containment during seismic events.
Feature | FBE Bolted Steel | Reinforced Concrete | Engineering Benefit |
Construction Speed | 4–6 Weeks | 6–10 Months | Faster commissioning for urgent projects. |
Corrosion Resistance | High (C5-M Rated) | Low (Requires Liners) | Prevents $H_2S$ and chloride-induced rot. |
Seismic Performance | Ductile | Rigid (Prone to Cracking) | Superior safety in active tectonic zones. |
Quality Control | Factory-Applied | Field-Applied | 100% spark-tested seal integrity. |
Lifecycle Cost | Lower (30+ Years) | High (Constant Repair) | Significant long-term OPEX savings. |
The reliability of Center Enamel’s infrastructure is proven by over 30 years of field performance across 90+ countries.
● Details: Multi-tank configuration for Anoxic/Oxic treatment in a high-humidity coastal zone.
● Capacity: 2,504 m3 (5 units).
● Performance: Stable operation since 2019, proving the superior coastal corrosion protection of FBE coating.
● Details: Highly aggressive chemical effluent treatment in Shaanxi Yan'an.
● Capacity: 2,347 m3 (3 units).
● Performance: High chemical resistance (pH 3–11) maintained since 2021 commissioning.
● Details: High-integrity containment for pharmaceutical residues and pathogens.
● Core Unit: 1 UASB Tank (φ13.76 * 13.2 m) | 1,962 m3.
● Status: Operational since 2023, meeting strict seismic load design requirements.
Q: What is the expected lifespan of an FBE tank? A: When manufactured to AWWA D103-09 standards, Center Enamel FBE tanks have a design life of 30 to 50 years. The fusion-bonding process creates a molecular bond that prevents the "under-film" corrosion seen in painted tanks.
Q: How is the coating integrity verified? A: Every panel undergoes High-Voltage Spark Testing (Holiday Testing) at 1100V–1500V at our factory. This ensures the surface is 100% defect-free before shipping.
Q: Can these tanks handle high-temperature industrial effluents? A: Our standard FBE tanks operate up to 60°C (140°F). We offer custom high-temperature epoxy formulations for specialized industrial processes.
As a leading China Epoxy Coated Tank manufacturer, Shijiazhuang Zhengzhong Technology Co., Ltd. combines automated CNC fabrication with ISO-certified quality management. Beyond tanks, we offer integrated solutions including Aluminum Geodesic Dome Roofs for odor control and specialized UASB/AO process consulting.
