Thermal Energy Storage Tank AWWA D103: Standard for Bolted Steel Tanks
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Thermal Energy Storage Tank AWWA D103: Standard for Bolted Steel Tanks
AWWA D103-09 governs the design, fabrication and erection of factory-coated bolted steel tanks - the common build for large thermal energy storage tanks. It covers shell, coating, bolts, foundation and acceptance, and pairs with ISO 28765 for the enamel coating system.
AWWA D103-09 is the standard for factory-coated bolted steel tanks, the construction most large thermal energy storage tanks use. Knowing it frames the specification and acceptance.
Technical Explanation
What D103 covers
· It specifies materials, panel design, bolt grades, coating requirements, erection and testing for bolted steel tanks at the relevant pressures.
· It is the contract baseline for bolted TES tanks.
Coating linkage
· The enamel coating is controlled to ISO 28765, which sets thickness, adhesion and holiday testing for the glass-fused layer.
· Two standards, one tank.
Acceptance
· Hydrostatic test, coating holiday test and thickness verification confirm compliance at handover.
· Acceptance makes the standard real.
Technical Specifications
Table 1 - Standards specification factors
Standard | Scope | Use |
D103-09 | Bolted tank | Build |
ISO 28765 | Enamel | Coat |
Hydro | Test | Proof |
Holiday | Test | Coat |
Bolts | Grade | Joint |
Project Case Study
Project Case Summary - delivered water storage tanks
The deliveries below are representative bolted water and fire-protection storage tanks in glass-fused-to-steel, fusion bonded epoxy and stainless steel construction, with capacity, location and completion date recorded for each order. They illustrate the company's delivered capability for the type of tank discussed in this article.
Project | Application | Capacity | Construction | Roof | Completion |
Brazil | Potable water | 11,713 m3 | Glass-fused-to-steel bolted | Aluminium deck roof | 2025 |
Costa Rica | Potable water | 11,756 m3 | Glass-fused-to-steel bolted | Aluminium dome roof | 2025 |
Cirebon | Potable water | 10,237 m3 | Glass-fused-to-steel bolted | Aluminium alloy roof | 2020 |
Company Expertise
Center Enamel (Shijiazhuang Zhengzhong Technology Co., Ltd) manufactures bolted thermal energy storage tanks in glass-fused-to-steel, fusion bonded epoxy and stainless steel, engineered to AWWA D103-09 with the enamel coating process controlled to ISO 28765.
Center Enamel builds bolted thermal energy storage tanks to AWWA D103-09 with enamel coating controlled to ISO 28765.
Frequently Asked Questions (FAQ)
Q: What is AWWA D103-09?
A: The standard for factory-coated bolted steel tanks, common for large TES tanks.
Q: Does it cover coating?
A: It references coating requirements; the enamel detail is in ISO 28765.
Q: Is it mandatory?
A: Where the spec or jurisdiction calls for it; many projects adopt it by reference.
Q: What tests confirm compliance?
A: Hydrostatic test, holiday test and coating thickness verification.
Q: Bolted only?
A: D103 is specifically for bolted steel tanks; welded tanks follow other standards.
Q: Who certifies?
A: The tank is built to the standard; the engineer verifies compliance at acceptance.
AWWA D103-09 is the build standard for bolted thermal energy storage tanks, paired with ISO 28765 for enamel coating. Specifying and testing to it keeps the tank auditable.
Request Technical Specifications
Send your duty, capacity requirement and site conditions, and we will return the tank configuration, coating specification and documentation schedule for your project file.
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