What is the role of a pressure tank in a sprinkler system?

The role of a pressure tank in a sprinkler system is primarily to maintain water supply pressure. Pressure tanks are designed to store a certain volume of water under pressure, ensuring that there is a consistent supply of pressurized water available when the sprinkler system activates. This is crucial for the effective functioning of the system, as adequate pressure is necessary to ensure that water reaches all areas covered by the sprinklers, providing appropriate coverage and response in the event of a fire.

By maintaining a stable pressure, the pressure tank helps to prevent fluctuations that could lead to inadequate water flow or pressure when the sprinklers are engaged. This is particularly important in large buildings or complexes where the demand for water can vary significantly. Thus, the pressure tank plays a vital role in the reliability and efficiency of fire suppression efforts by ensuring that water is delivered at the correct pressure and volume when needed.