Jockey pumps are an essential component of fire protection systems, particularly in high-rise buildings and large commercial or industrial facilities. Here's an overview of what jockey pumps are and their role in fire protection systems:

1. Definition:

   • A jockey pump is a small, electrically driven pump used in fire protection systems to maintain pressure in a fire sprinkler system. It operates continuously to ensure that there is adequate pressure in the system, preventing the need for the main fire pump to start unnecessarily.

2. Function:

   • The primary function of a jockey pump is to maintain the pressure in a fire sprinkler system within an acceptable range, typically between 100 to 150 psi (pounds per square inch). This pressure is necessary to ensure that the sprinkler heads activate and distribute water effectively in the event of a fire.
   • Jockey pumps are set to start automatically when the pressure in the system drops below a certain level, and they stop once the desired pressure is restored. They are designed to run continuously to compensate for minor leaks or pressure fluctuations in the system.

3. Types:

   • Jockey pumps are typically centrifugal pumps, which use centrifugal force to increase the pressure of the water flowing through them. They are available in various sizes and configurations to suit different fire protection system requirements.
   • Common types of jockey pumps include horizontal split-case pumps, vertical inline pumps, and vertical turbine pumps. The choice of pump type depends on factors such as system layout, space constraints, and flow rate requirements.

4. Installation and Maintenance:

   • Jockey pumps are installed as part of the overall fire protection system and are usually located in a dedicated pump room or pump house. They are connected to the main fire sprinkler piping and equipped with pressure gauges, valves, and controls for monitoring and operation.
   • Regular maintenance of jockey pumps is essential to ensure reliable operation in the event of a fire. This includes routine inspections, lubrication of moving parts, checking for leaks or damage, and testing the pump's performance according to manufacturer recommendations.

5. Integration with Fire Protection System:

   • Jockey pumps work in conjunction with other components of the fire protection system, including fire sprinklers, fire alarm systems, and main fire pumps. They play a critical role in maintaining the integrity and effectiveness of the overall system, providing continuous pressure support to ensure rapid fire suppression when needed.

Overall, jockey pumps are vital for maintaining adequate pressure in fire sprinkler systems, helping to protect life and property by ensuring effective fire suppression in the event of an emergency. Proper design, installation, and maintenance of jockey pumps are essential to ensure their reliable performance when needed most.