What is the maximum allowed spacing for supports on NPS 3 horizontal piping?

The correct answer indicates that the maximum allowed spacing for supports on NPS 3 horizontal piping is 10 feet. This standard is based on the guidelines set forth in industry regulations and standards such as the National Fuel Gas Code. Proper spacing is crucial to ensure the integrity and safety of the piping system, as it prevents sagging, reduces stress on joints and connections, and minimizes the risk of damage due to pipe movement or thermal expansion.

In practical terms, by maintaining a support spacing of no more than 10 feet for NPS 3 piping, technicians can ensure adequate support for the weight of the pipe and any contained materials, while also allowing for flexibility due to temperature fluctuations. This helps maintain the operational lifespan of the system, contributing to its safety and reliability.