Final line pressure controls shall be sized to what percentage of the peak calculated demand?

Final line pressure controls are critical components in medical gas systems, ensuring that the supply pressure remains stable and meets the demands of the system. These controls are typically sized to 100% of the peak calculated demand to maintain adequate pressure and volume for optimal operation.

If the controls were sized below 100%—for example, at 75% or 50%—there would be a risk of inadequate pressure during peak demand times, which could jeopardize patient safety and the effectiveness of medical gas delivery. On the other hand, sizing the controls above 100%, such as at 125%, could lead to unnecessary system strain, potential backflow issues, and increased wear on components.

Thus, sizing final line pressure controls to 100% of peak calculated demand ensures that the system can handle maximum flow rates without compromising safety or performance.