What is the primary function of a jockey pump in a fire suppression system?

The primary function of a jockey pump in a fire suppression system is to maintain system pressure. Jockey pumps are specifically designed to keep the water pressure within the fire suppression system at an optimal level. This is critical because maintaining proper pressure ensures that fire suppression systems, such as sprinklers or standpipes, are ready to activate promptly and effectively in the event of a fire.

These small pumps automatically activate when the system pressure drops below a specified threshold, typically due to minor leaks or normal operational fluctuations. By compensating for these changes and maintaining consistent pressure, the jockey pump helps to ensure that the primary fire pump does not need to engage unless there is a more significant demand for water due to a fire event.

In contrast, supplying water during a fire is the primary role of the main fire pump, which is designed to deliver a greater volume of water in response to an emergency situation. Testing system integrity usually involves pressure tests or inspections, not the specific role of a jockey pump. Pumping water from hydrants pertains to different aspects of water supply that are not related to the jockey pump's duty. Thus, the correct selection underscores the importance of maintaining system pressure for the overall efficacy of fire suppression systems.