Data Center Water Storage Tanks: Chilled, Make-Up and Fire-Protection Reservoirs
A data center campus typically carries several distinct water storage tanks, each with a different job: chilled-water TES, makeup for cooling towers, and fire-protection reserves. Confusing them leads to wrong specs. This article maps the full set and their requirements.
A data center campus commonly needs three water-storage classes: chilled-water TES tanks (atmospheric, stratified, for cooling energy), makeup tanks (condenser-side reserve), and fire-protection tanks (dedicated reserve per fire code). Each has distinct material, code, and isolation requirements; chilled and makeup are process tanks, while fire water is a separate, often code-mandated system.
Chilled-Water TES Tanks
The largest and most technical: atmospheric stratified tanks storing cooling energy, built from GFS, stainless, or welded steel to AWWA D103 / ISO 28765.
Makeup and Process Tanks
Condenser-side reservoirs for evaporation and blowdown replacement, sized for autonomy and built from corrosion-compatible bolted steel.
Fire-Protection Reservoirs
Dedicated fire-water tanks are isolated from process use and designed to fire-code capacity and drawdown, often GFS or galvanized bolted steel with listed coatings. They must remain available even if process systems are down.
Keeping fire water separate simplifies compliance and protects the mission-critical cooling side from cross-contamination.
Technical Specifications
Parameter | Specification |
Class 1 | Chilled-water TES |
Class 2 | Makeup / process |
Class 3 | Fire-protection |
TES type | Atmospheric stratified |
Fire type | Isolated reserve |
TES material | GFS / stainless |
Fire material | GFS / galvanized |
TES code | AWWA D103 |
Fire code | Local fire standard |
QA | ISO 9001 |
Verified Tank Engineering Reference
Center Enamel's fire-protection water tank experience - such as a 2024 Indian installation of three GFS tanks at 19.86 m diameter and 12,261 m3 - reflects the dedicated fire-water tank capability a data-center campus also requires, separate from chilled-water TES. Capability evidence only, not a DC project.
Project location | India |
Application | Fire-protection water |
Tank type | GFS (Glass-Fused-to-Steel) bolted tank |
Scale | 3 unit(s), φ19.86*13.2m(H) |
Total volume | 12,261 m3 |
Year | 2024-06 |
Note | Cited as manufacturing-capability evidence, not a data-center project. |
Center Enamel Capability
Center Enamel manufactures the full water-tank family for industrial campuses: chilled-water TES and buffer tanks (GFS, stainless, FBE, welded), makeup tanks, and fire-protection reservoirs (GFS or hot-dip galvanized bolted steel). All are built under ISO 9001 with AWWA D103 / ISO 28765 construction and available NSF/ANSI 61, WRAS, and FM-listed coating options for fire duty.
Sourcing the campus tank set from one supplier simplifies QA, logistics, and documentation across the different duty classes.
Frequently Asked Questions
Q: What water tanks does a data center need?
A: Typically chilled-water TES, makeup/process, and a separate fire-protection reservoir.
Q: Are fire-water tanks separate?
A: Yes - fire water is isolated from process use and designed to fire-code capacity and drawdown.
Q: What material for fire tanks?
A: GFS or hot-dip galvanized bolted steel, often with FM-listed coatings.
Q: What material for chilled water?
A: GFS, stainless, FBE, or welded steel by chemistry and code.
Q: Can one supplier provide all?
A: Yes - Center Enamel builds the full tank family under one ISO 9001 system.
Q: Which codes apply?
A: AWWA D103 / ISO 28765 for process tanks; local fire standards for fire water.
Treat the data-center water tank set as three distinct duties, not one. Chilled-water TES, makeup, and fire protection each demand their own spec, isolation, and code path - planned together, they form a resilient campus water strategy.
Suggested Next Step
Map your campus water duties with our team - we will specify the TES, makeup, and fire-protection tanks as a coordinated, code-compliant set.
