With what is an automatic non-return valve typically used?

An automatic non-return valve is typically used in a boiler system to ensure that water or steam flows in one direction only, preventing backflow. In the context of a boiler, this type of valve is crucial for maintaining system integrity and safety. It protects the boiler by ensuring that the heated water or steam does not return to the feed water line, which could lead to contamination, overheating, or the introduction of cold water into the hot system, potentially causing thermal shock.

In contrast, while pumps do require check valves to prevent backflow, the specific function of the automatic non-return valve aligns more closely with the operational requirements of a boiler. Similarly, pressure vessels and heat exchangers have their own methods of managing fluid flow, but they do not typically involve the automatic non-return valve in the same critical capacity as a boiler does. Therefore, the most appropriate application of an automatic non-return valve is indeed in conjunction with a boiler system.