What is the minimum hanger pipe support spacing for 1 1/4" NPS medical gas and vacuum system piping?

The minimum hanger pipe support spacing for 1 1/4" NPS medical gas and vacuum system piping is established to ensure the integrity and safety of the system. In the context of NFPA 99, which provides guidelines for healthcare facilities, the recommended spacing is determined by various factors, including the type of piping and the materials used.

For 1 1/4" NPS piping, the established spacing of 9 feet is suitable for maintaining proper support and reducing the risk of sagging or stress on the joints, which could potentially lead to leaks. This spacing helps to ensure that the system remains secure and functional, minimizing the risk of disruptions to critical medical gas services and ensuring compliance with safety standards.

Choosing a spacing that is either shorter or longer than the recommended distance could compromise the system's reliability and safety, highlighting the importance of adhering to these specific guidelines when installing or maintaining medical gas and vacuum systems.