The minimum NPS for drops to station outlets is?

The minimum nominal pipe size (NPS) for drops to station outlets is crucial for ensuring adequate gas flow and pressure stability in medical gas systems. A drop to a station outlet that is 1/4 inch in size allows for sufficient delivery of gas even at low flow rates, ensuring that the equipment functions effectively. This size is commonly used because it balances the need for adequate gas movement while maintaining manageable installation constraints and complying with codes and standards relevant to medical gas systems.

Larger sizes might be suitable in specific contexts, but they can lead to increased costs and installation complexity without providing significant benefits in typical situations. Therefore, the choice of 1/4 inch as the minimum size strikes the right balance for most applications involving medical gas drops to outlets.