Valve body + disc De Dietrich 86665571

The valve body plus disc assembly is a fundamental part of many control and shut-off valves used in heating systems. The valve body houses the internal components, while the disc is the moving part that opens or closes the flow path. This combination is often replaced together to ensure a proper seal and smooth operation. Whether for a gas burner or boiler circuit, using a matched valve body and disc helps maintain precise control and prevent leaks. Check the dimensions and material compatibility with your system before installation.