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NFPA 20:2022



The latest, up-to-date edition.

Standard for the Installation of Stationary Pumps for Fire Protection

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Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Application. 1.4 Retroactivity. 1.5 Equivalency. 1.6 Units. Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections. Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. Chapter 4 General Requirements 4.1 Pumps. 4.2 Approval Required. 4.3 Pump Operation. 4.4 Fire Pump Unit Performance. 4.5 Certified Shop Test. 4.6 Liquid Supplies. 4.7 Pumps, Drivers, and Controllers. 4.8 Self-Regulating Variable Speed Fire Pump Units. 4.9 Multistage Multiport Pump. 4.10 Centrifugal Fire Pump Capacities. 4.11 Nameplate. 4.12 Pressure Gauges. 4.13 Circulation Relief Valve. 4.14 Equipment Protection. 4.15 Pipe and Fittings. 4.16 Suction Pipe and Fittings. 4.17 Discharge Pipe and Fittings. 4.18 Valve Supervision. 4.19 Protection of Piping Against Damage Due to Movement. 4.20 Relief Valves for Centrifugal Pumps. 4.21 Pumps Arranged in Series. 4.22 Water Flow Test Devices. 4.23 Steam Power Supply Dependability. 4.24 Shop Tests. 4.25 Pump Shaft Rotation. 4.26 Other Signals. 4.27 Pressure Maintenance (Jockey or Make-Up) Pumps. 4.28 Summary of Centrifugal Fire Pump Data. 4.29 Backflow Preventers and Check Valves. 4.30 Earthquake Protection. 4.31 Packaged Fire Pump Assemblies. 4.32 Pressure Actuated Controller Pressure Sensing Lines. 4.33 Break Tanks. 4.34 Field Acceptance Test of Pump Units. 4.35 Automated Inspection, Testing, and Distance Monitoring of Devices, Meters, and Equipment. Chapter 5 Fire Pumps for High-Rise Buildings 5.1 General. 5.2 Equipment Access. 5.3 Water Supply Tanks. 5.4 Fire Pump Test Arrangement. 5.5 Alternate Power. 5.6 Very Tall Buildings. Chapter 6 Centrifugal Pumps 6.1 General. 6.2 Factory and Field Performance. 6.3 Fittings. 6.4 Foundation and Setting. 6.5 Connection to Driver and Alignment. Chapter 7 Vertical Shaft Turbine–Type Pumps 7.1 General. 7.2 Water Supply. 7.3 Pump. 7.4 Installation. 7.5 Driver. 7.6 Operation and Maintenance. Chapter 8 Positive Displacement Pumps 8.1 General. 8.2 Foam Concentrate and Additive Pumps. 8.3 Water Mist System Pumps. 8.4 Water Mist Positive Displacement Pumping Units. 8.5 Fittings. 8.6 Pump Drivers. 8.7 Controllers. 8.8 Foundation and Setting. 8.9 Driver Connection and Alignment. 8.10 Flow Test Devices. Chapter 9 Electric Drive for Pumps 9.1 General. 9.2 Normal Power. 9.3 Alternate Power. 9.4 Voltage Drop. 9.5 Motors. 9.6 On-Site Standby Generator Systems. 9.7 Junction Boxes. 9.8 Listed Electrical Circuit Protective System to Controller Wiring. 9.9 Raceway Terminations. Chapter 10 Electric-Drive Controllers and Accessories 10.1 General. 10.2 Location. 10.3 Construction. 10.4 Components. 10.5 Starting and Control. 10.6 Controllers Rated 2.2—7.2 kV. 10.7 Limited Service Controllers. 10.8 Power Transfer for Alternate Power Supply. 10.9 Controllers for Additive Pump Motors. 10.10 Controllers with Variable Speed Pressure Limiting Control or Variable Speed Suction Limiting Control. Chapter 11 Diesel Engine Drive 11.1 General. 11.2 Engines. 11.3 Pump Room. 11.4 Fuel Supply and Arrangement. 11.5 Engine Exhaust. 11.6 Diesel Engine Driver System Operation. Chapter 12 Engine Drive Controllers 12.1 Application. 12.2 Location. 12.3 Construction. 12.4 Components. 12.5 Battery Recharging. 12.6 Battery Chargers. 12.7 Starting and Control. 12.8 Air-Starting Engine Controllers. Chapter 13 Steam Turbine Drive 13.1 General. 13.2 Turbine. 13.3 Installation. Chapter 14 Acceptance Testing, Performance, and Maintenance 14.1 Hydrostatic Tests and Flushing. 14.2 Field Acceptance Tests. 14.3 Record Drawings, Test Reports, Manuals, Special Tools, and Spare Parts. 14.4 Periodic Inspection, Testing, and Maintenance. 14.5 Component Replacement. Annex A Explanatory Material Annex B Possible Causes of Pump Troubles Annex C Fire Pump Room Connectivity Annex D Material Extracted by NFPA70, Article 695 Annex E Informational References

This standard deals with the selection and installation of pumps supplying liquid for private ƒre protection.

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