Water Storage Tanks for Fire Protection — Understanding requirements, standards, and how TanksCo meets every NFPA 22 specification.
NFPA 22 (Standard for Water Tanks for Private Fire Protection) is the nationally recognized standard that governs the design, construction, installation, inspection, and maintenance of water storage tanks used for fire protection.
Local fire code officials and AHJ require NFPA 22 compliance. Violations can result in permit denial and tank removal orders.
Insurance carriers require NFPA 22 compliant tanks. Non-compliance may void fire protection credits and increase premiums.
Specifies materials, coatings, sizing, piping connections, and structural requirements for fire protection tanks.
Establishes inspection frequencies, maintenance procedures, and record-keeping requirements for ongoing compliance.
Understanding the critical requirements for fire protection water storage tank compliance.
NFPA 22 requires tanks to be constructed of approved materials including steel (bolted or welded), concrete, or fiberglass-reinforced plastic. Bolted steel tanks must meet AWWA D103 standards with factory-manufactured panels and corrosion-resistant hardware.
Tank capacity must meet fire flow demands calculated per NFPA 13/14/20. Sizing considers fire sprinkler demand, hose stream allowance, system duration, and makeup water. Minimum volume must account for unusable water below discharge piping.
Interior coatings must protect against corrosion and be approved for water contact (NSF/ANSI 61 for potable systems). Exterior coatings must resist UV, weather, and mechanical damage. Re-coating intervals are specified.
In climates where freezing occurs, tanks must have freeze protection. Options include electric immersion heaters, steam coils, or circulation systems. Thermostatic controls and low-temperature alarms are required.
Discharge piping must be sized per fire flow requirements. Anti-vortex plates prevent air entrainment. Fire department connections, drain valves, overflow piping, and fill connections must meet NFPA specifications.
Quarterly exterior inspections, annual interior inspections, and 5-year comprehensive assessments. Detailed records must be maintained and available for AHJ review.
Tanks in seismic zones must meet additional structural requirements including anchorage, flexible connections, and sloshing wave calculations per ASCE 7 and AWWA seismic standards.
Every fire protection tank we deliver is engineered for full NFPA 22 compliance from day one.
Factory-manufactured panels with precision hardware. Every tank meets AWWA D103 standards for bolted steel tank construction.
Factory-applied thermosetting powder coat provides superior corrosion protection and 30+ year service life.
Spray-applied polyurethane foam insulation with aluminum jacketing and thermostatically controlled heating systems.
Complete documentation package for permit approval and insurance compliance, prepared by licensed professional engineers.
Get a custom quote within 24 hours. Our engineering team is ready to spec the right solution for your project.