Drops to individual station outlets and inlets shall not be less than which NPS?

The nominal pipe size (NPS) for drops to individual station outlets and inlets is specified to be a minimum of 1/2 inch. This standard is established to ensure that there is sufficient flow and pressure for the medical gas systems, allowing for effective delivery of gases such as oxygen, nitrous oxide, and medical air. A drop size of 1/2 inch provides a balance between ensuring adequate gas delivery while also being manageable within the infrastructure of medical facilities.

Using smaller pipe sizes, such as 5/8 or 3/4 inch, could lead to restricted flow, reduced pressure, and potential difficulties in meeting the demands of modern medical equipment that requires reliable gas supply. Thus, the choice of 1/2 inch aligns with industry standards and best practices, ensuring that the gas delivery system operates efficiently and safely within healthcare settings.