What governs the number of sprinklers that can be placed on a given pipe?

The number of sprinklers that can be placed on a given pipe is governed by the pipe size. Larger diameter pipes can accommodate a greater volume of water, allowing more sprinklers to be connected without compromising water flow and pressure. The size of the pipe directly impacts the capacity to deliver the required water flow to each sprinkler effectively. If the pipe is too small, then the water pressure may drop, leading to inadequate performance of the sprinklers and possibly not meeting fire safety standards.

While water pressure and the length of the pipe are important considerations for overall system design, they are influenced by the size of the pipe as well. The type of sprinklers used affects the requirements for water flow, but again, it is the pipe size that determines how many sprinklers can be supplied effectively without compromising their operation. Therefore, the pipe size is the primary factor in dictating the number of sprinklers that a system can support.