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NFPA 20: A Guide to the Standard for the Installation of Stationary Pumps for Fire Protection

NFPA 20 is a standard that provides requirements for the selection and installation of pumps to ensure that fire protection systems will work as intended to deliver adequate and reliable water supplies in a fire emergency. NFPA 20 is published by the National Fire Protection Association (NFPA), a nonprofit organization that develops and maintains codes and standards for fire and life safety.

The latest edition of NFPA 20 is the 2022 edition, which was issued on August 18, 2021 and will be effective on September 7, 2021. The 2022 edition of NFPA 20 clarifies and enhances the requirements for numerous subjects, such as pump currents, overcurrent protection devices, and transfer switch installation[^2^] [^3^].

NFPA 20 applies to all types of fire pumps, including centrifugal, vertical shaft turbine, positive displacement, and regenerative turbine pumps. It also covers electric motor drivers, diesel engine drivers, steam turbine drivers, and manual drives. NFPA 20 specifies the minimum requirements for pump location, arrangement, installation, testing, and maintenance.

NFPA 20 is one of the most widely used standards for fire protection systems in the world. It is referenced by other NFPA standards, such as NFPA 13 (Standard for the Installation of Sprinkler Systems), NFPA 14 (Standard for the Installation of Standpipe and Hose Systems), and NFPA 25 (Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems).

NFPA 20 is available online for free access to the public as part of NFPA's commitment to enhancing public safety[^1^]. However, this is a read-only site and documents cannot be downloaded or printed. Users who need to own their own copies can purchase them from NFPA's website or other authorized distributors.Some of the topics covered by NFPA 20 include:

Pump selection and performance: NFPA 20 provides criteria for selecting the type, size, and capacity of fire pumps based on the water demand and pressure requirements of the fire protection system. It also specifies the minimum net positive suction head (NPSH) and maximum speed for fire pumps.

Pump installation and arrangement: NFPA 20 provides requirements for the location and protection of fire pumps and their components, such as suction and discharge piping, valves, fittings, gauges, controllers, and accessories. It also provides requirements for the arrangement and spacing of fire pumps and drivers, such as horizontal or vertical mounting, alignment, vibration isolation, and ventilation.

Pump testing and maintenance: NFPA 20 provides requirements for the testing and maintenance of fire pumps and their components to ensure their proper operation and reliability. It specifies the frequency and methods of testing, such as flow tests, pressure tests, operational tests, and acceptance tests. It also specifies the records and reports that must be kept and submitted.

NFPA 20 is an essential standard for anyone involved in the design, installation, inspection, testing, or maintenance of fire protection systems that use fire pumps. It helps to ensure that fire pumps will perform as expected in a fire emergency and provide adequate and reliable water supplies to suppress fires and protect lives and property. 061ffe29dd