Overview

Fire pumps are the heart of any fire protection system that requires pressure beyond what the municipal water supply can provide. This guide covers the fundamental principles of fire pump operation, selection criteria, and installation requirements per NFPA 20.

Fire pump room installation with diesel and electric pumps, controllers, and red piping
A complete fire pump room installation — pump set, controllers, and distribution piping.

Types of Fire Pumps

Centrifugal Pumps

The most common type used in fire protection. They convert rotational kinetic energy into hydrodynamic flow. Available in horizontal split-case, vertical split-case, and inline configurations.

Vertical Turbine Pumps

Used when the water source is below ground level, such as a well or underground tank. These pumps can handle large capacities and are ideal for sites with limited municipal water pressure.

Jockey Pumps

Small-capacity pumps that maintain system pressure to prevent the main fire pump from starting due to minor pressure fluctuations in the piping network.

Selection Criteria

ParameterConsideration
Flow Rate (GPM)Based on hydraulic demand calculations
Pressure (PSI)Must exceed the most remote sprinkler demand
Water SourceMunicipal, tank, or well supply
Driver TypeElectric motor or diesel engine

Related Suppression Systems

A fire pump rarely works alone — it feeds and supports a wider network of suppression and protection systems across the facility. Below are common systems ANC designs, supplies, and installs alongside fire pump rooms.

Kitchen hood fire suppression system with wet chemical cylinder above a commercial kitchen line
Kitchen hood wet-chemical suppression protecting a commercial cooking line (UL 300).
FM-200 clean agent fire suppression cylinders connected to a control panel
FM-200 clean agent system — ideal for data centers and electrical rooms.
ANC branded fire hose reel cabinet mounted on a wall with landing valve
ANC fire hose reel cabinet with landing valve, ready for first-response use.

Installation Requirements

  1. Location: Fire pump rooms must be separated from the rest of the building by fire-rated construction.
  2. Suction Supply: Must provide adequate NPSH (Net Positive Suction Head) to prevent cavitation.
  3. Controller: Must be listed for fire pump service and located within sight of the pump.
  4. Testing: Weekly churn tests and annual full-flow tests are required per NFPA 25.
Important: All fire pump installations must be designed, installed, and tested in accordance with the latest edition of NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection.

Maintenance & Inspection

Regular inspection and maintenance are critical for ensuring pump reliability. Refer to our NFPA 25 inspection resources for a comprehensive guide to maintenance requirements.

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