Which of the following components works to maintain consistent water pressure in a fire sprinkler system?

The jockey pump is crucial in maintaining consistent water pressure within a fire sprinkler system. Its primary function is to automatically adjust water pressure levels to a predetermined set point by adding or removing water as necessary. This is essential because fluctuations in water pressure can cause inefficiencies in the fire suppression system, potentially leading to inadequate coverage during a fire event. The jockey pump activates when the system pressure drops below a certain level, replenishing the pressure and ensuring that the sprinkler heads can function optimally when needed.

While other components play significant roles in the overall functionality of the system, such as providing water supply or measuring pressure, they do not specifically address the stabilization of water pressure like the jockey pump does.