What is the pump pressure for supplying the sprinkler system for a building with no smoke or fire showing?

The pump pressure of 100 psi for supplying a sprinkler system in a building with no smoke or fire showing is based on established guidelines and standard operating procedures for fire protection systems. Sprinkler systems are designed to respond quickly and effectively to fire incidents, and having an adequate pump pressure ensures that the system can deliver water to the sprinklers at the necessary flow rate.

In general, 100 psi is a common baseline pressure that allows for proper coverage and effectiveness of the sprinklers while accounting for potential loss of pressure due to friction in the piping. This pressure is sufficient to ensure that the water is distributed across the entire area served by the sprinklers, thereby maximizing their ability to control or extinguish a fire if one occurs.

Other pressure values like 50 psi, 75 psi, and 125 psi may be suitable for different scenarios, conditions, or building types, but 100 psi strikes a balance between providing adequate pressure and avoiding excessive pressure that could stress the system or lead to operational issues.