What pressure range is generally considered safe for spray sprinklers to operate?

The pressure range of 100-175 psi is generally considered safe for spray sprinklers to operate effectively. This range ensures that the system has sufficient pressure to distribute water adequately to control fire hazards while preventing damage to the system components.

Operating at this pressure level strikes a balance between providing enough force to ensure proper coverage and minimizing the risk of over-pressurizing the system, which could lead to leaks or failures. Spray sprinklers are designed to function optimally within this range to achieve an effective spray pattern and coverage area, contributing to their efficiency in fire suppression.

Pressure settings outside of this range could compromise the ability of the sprinkler system to function effectively. For instance, pressures below 100 psi might not deliver enough water flow or reach necessary areas, while pressures above 175 psi could put undue stress on pipes and joints, increasing the likelihood of mechanical failures. Thus, the selected range of 100-175 psi represents a standard for safe and reliable operation of spray sprinklers.