What is the minimum hanger pipe support spacing for 3/4" NPS medical gas and vacuum system piping?

In the context of medical gas and vacuum system piping, the minimum hanger pipe support spacing is critical for ensuring the integrity and safety of the piping system. For 3/4" NPS (Nominal Pipe Size) medical gas piping, the established industry standard stipulates a maximum spacing of 7 feet between hanger supports. This spacing helps to prevent sagging and potential stress on the joints and fittings that might compromise the integrity of the system.

Maintaining this proper support spacing is essential because it ensures that the pipes are well-supported, which ultimately affects the performance and reliability of the entire medical gas or vacuum system. It also aids in facilitating maintenance and reduces the risk of damage due to environmental influences such as thermal expansion or contraction.

Therefore, the choice of 7 feet aligns with the NFPA 99 standards and reflects best practices in the installation and maintenance of medical gas piping systems.