Where is a diversion fitting typically installed in a radiator system?

A diversion fitting is typically installed on the return piping in a radiator system to manage the flow of water returning to the boiler. Its primary purpose is to allow a portion of the water from the return line to bypass the main flow and feed back into the supply line or directly into the boiler, depending on the system design. This helps maintain appropriate temperatures and pressures within the system, ensuring efficient operation and heating performance.

By integrating a diversion fitting into the return piping, you can adjust the balance within the radiator system, allowing for better control over heating output and improved energy efficiency. The accessory is essential in adapting the flow characteristics of the system to meet heating demands effectively.