The 00R-IFC Radiant Heating Circulator is specifically designed for the flow and head requirements of the radiant heating systems you design and install today. This unit’s performance curve delivers flow you can use in a wide combination of tube diameters and lengths of run. A removable, spring-loaded Integral Flow Check (IFC) that prevents gravity flow and eliminates the need for a separate, in-line check valve is standard on the 00R-IFC. Cast iron models have been redesigned with IFC in the discharge port so the unit can be installed on the supply or return lines. Casing can be purged using standard piping configurations. Cast iron 00R-IFC also features a new LED indicator light to show when pump is operating to assist with system diagnostics.