In the critical sector of municipal infrastructure, potable water systems require containment solutions that prioritize hygiene and structural longevity. Epoxy Coated Bolted Tanks have emerged as the gold standard, utilizing FBE (Fusion Bonded Epoxy) technology to create a seamless, non-toxic, and incredibly strong protective layer. These modular steel tanks are engineered to exceed the rigorous demands of public health water systems, providing a safer, more efficient alternative to traditional concrete or welded structures.
Shijiazhuang Zhengzhong Technology Co., Ltd, operating globally as Center Enamel, is a leading China Epoxy Coated Bolted Tanks manufacturer with decades of experience in developing these advanced containment solutions.
Our manufacturing process utilizes high-tenacity steel and specialized testing to ensure every panel meets international engineering benchmarks.
Feature | Technical Specification / Standard | Performance Result |
Safety Standard | NSF/ANSI 61 | Certified for Potable Water contact |
Design Standard | AWWA D103-09 | Industry standard for bolted steel containment |
Integrity Testing | Holiday Testing | 1100V for zero-discontinuity |
Corrosion Protection | Cathodic Protection | Superior electrochemical barrier against rust |
Dry Film Thickness | Average Dry Thickness | 5–10 mils / 125–250 microns |
Chemical Resistance | 50% NaOH, 50% H2SO4 | Meets/exceeds industry standards |
PH Compatibility | Material standard 3–12 | Resistant across broad pH ranges |
Impact Resistance | ASTM D2794 | Pass 160 in-lbs direct & reverse impact |
Hardness | ISO 15184 / ASTM D3363 | 2H |
The superiority of our drinking water storage tanks lies in the metallurgical bond created during the coating process:
● Advanced Coating Process: FBE is a thermoset polymer powder applied electrostatically to prepared steel panels, then heated to fuse into an inert, non-porous layer.
● Impeccable Hygiene: The smooth surface inhibits the growth of bacteria, algae, and microorganisms, ensuring water remains in its intended pristine condition.
● Cathodic Protection: This inherent property ensures the tank resists chemical degradation and prevents the leaching of metallic ions into the supply.
● Modular Versatility: These modular steel tanks allow for rapid installation in remote or difficult-to-access locations with minimal heavy machinery.
● Thermal Stability: When integrated with Aluminum Dome Roofs, the system provides superior reflective thermal management, reducing condensation and preventing mold growth.
While concrete has been a traditional choice, Epoxy Coated Bolted Tanks address common failures like cracking and microbial contamination.
● Lower Lifecycle Cost: Unlike concrete, which is susceptible to expensive cracking and leaks over time, these tanks utilize flexible high-tenacity steel and a durable FBE coating requiring minimal maintenance for over 30 years.
● Rapid Installation Speed: The bolted panel design allows for significantly faster assembly—often 3x faster—compared to the lengthy curing and pouring times required for concrete.
● Superior Hygiene: The smooth, non-porous FBE coating is NSF/ANSI 61 certified and inhibits microbial growth, whereas porous concrete surfaces often harbor contamination.
Center Enamel’s solutions are manufactured under a rigorous quality control framework, including ISO 9001:2015. Our adherence to international standards has allowed us to deliver critical drinking water storage infrastructure for high-stakes projects in over 100 countries:
● Saudi Arabia Project: 9 tanks with a total capacity of 37,300 cubic meters, utilizing aluminum dome covers to protect water from extreme heat.
● Guyana Municipal Project: A high-capacity storage solution (3,013 cubic meters) designed for urban water management.
● Ecuador Municipal Water: A 1,023 cubic meter unit providing reliable urban infrastructure.
● Cuba Rural Supply: 2 tanks (2,249 cubic meters) providing foundational water security for multiple villages.
● Thailand Drinking Water: A 1,210 cubic meter installation for a demanding public utility.
● Are epoxy coated tanks safe for potable water?
Yes. Our tanks are manufactured to meet NSF/ANSI 61 and AWWA D103-09 standards, ensuring they are non-toxic and strictly compliant with public health requirements.
● What is the lifespan of an FBE coated tank?
The combination of high-tenacity steel and a durable FBE coating results in a minimal maintenance requirement and an extended service life of over 30 years.
● What is the purpose of holiday testing?
Holiday testing is a high-voltage integrity check (1100V) used to detect microscopic discontinuities or pinholes in the epoxy coating, ensuring 100% cathodic protection against corrosion.
● How long does installation take?
The modular bolted design allows for rapid installation, significantly reducing project timelines compared to traditional on-site welding or concrete pouring.
● Can these tanks be installed in remote locations?
Yes. The components are shipped as compact, nested panels that are easily transported to difficult-to-access sites.
Would you like a technical submittal detailing how our holiday testing protocols meet your specific project's quality assurance requirements?
