What engine pressure is typically used to pump into a sprinkler system?

The typical engine pressure used to pump into a sprinkler system is around 150 psi. This pressure is ideal because it ensures adequate flow to activate the sprinkler system’s nozzles effectively and provide sufficient water coverage for fire suppression.

Sprinkler systems are designed to operate within certain pressure parameters to ensure efficient water distribution. Setting the engine pressure to 150 psi generally strikes a balance between delivering enough water volume and pressure while minimizing the risk of damaging the sprinkler system or causing undue strain on the fire apparatus.

While pressures below or above this level may be used in specific situations, 150 psi is widely accepted as a standard pressure for reliable performance in activating sprinkler systems effectively. It's crucial to adjust the pressure based on the manufacturer's specifications and the specific design of the sprinkler system in use, but generally, 150 psi serves as a suitable baseline for most situations.