What is the minimum NPS size for mains, branches, and drops to individual service outlets in level 3 oxygen piping?

The minimum NPS (Nominal Pipe Size) for mains, branches, and drops to individual service outlets in level 3 oxygen piping is 3/8 inch. This size is specified to ensure that there is adequate flow capacity and pressure for supplying medical oxygen efficiently and safely.

In medical gas systems, particularly oxygen delivery, it's crucial to balance the requirements of flow rate and pressure drop across the piping system. Selecting a pipe size smaller than 3/8 inch could lead to increased resistance in the flow, which may result in inadequate oxygen supply to medical equipment or patients. Furthermore, using an appropriately sized NPS helps prevent issues such as malfunctions of flow regulators and enhances the overall reliability of the medical gas system.

Understanding these specifications is key in ensuring compliance with health and safety regulations in medical gas installations.