What type of valve can be used in conjunction with a make-up water feeder?

A check valve is utilized in conjunction with a make-up water feeder to ensure that water can flow into the system while preventing any backflow that could compromise the system’s integrity. This is particularly important in applications where maintaining the correct water level is vital, such as in heating systems or boilers. The check valve operates automatically by allowing flow in one direction and blocking it in the opposite direction, thus safeguarding against contamination and maintaining system efficiency.

In contrast, an isolation valve is primarily used to disconnect sections of a system for maintenance or repairs, but it does not regulate flow or protect against backflow. A pressure relief valve is designed to release excess pressure from a system to prevent damage, while a flow control valve regulates the flow rate of the fluid but does not inherently offer protection against reverse flow. Thus, while these other types of valves serve important functions, they do not fulfill the specific role of preventing backflow in the context of a make-up water feeder.