Where does the gas produced by evaporation from a secondary header enter the supply system?

The gas produced by evaporation from a secondary header enters the supply system upstream of the final line regulator to ensure that it can be properly regulated before being delivered to the point of use. By introducing the evaporated gas at this stage, it allows the final line regulator to adjust the pressure and flow rate of the gas to meet the specific requirements of the downstream medical equipment or systems. This placement is critical for maintaining the safety and efficacy of the medical gas supply, as it ensures that any variations in pressure or gas composition can be managed appropriately before reaching sensitive medical devices.

The importance of entering upstream is also underscored by the need to prevent potential backflow or pressure spikes that could occur if gas was introduced after regulation, which could lead to improper functioning of downstream systems and could create safety hazards in a medical environment.