What is the maximum distance that a pipe can extend from its last support in a sprinkler system?

The maximum distance that a pipe can extend from its last support in a sprinkler system is 30 inches. This measurement is in accordance with the National Fire Protection Association (NFPA) guidelines, which dictate proper installation practices for sprinkler systems to ensure they remain secure and function effectively.

Supporting a pipe correctly is crucial to prevent sagging, bending, or breaking under the weight of the water or other forces. If the support spacing exceeds the recommended limit, it can lead to stress on the pipe joints, potential leaks, and decreased performance of the overall sprinkler system. By adhering to the 30-inch maximum distance for unsupported pipe, installers ensure the reliability and durability of the system, helping to provide effective fire protection in a building.