Hydrotherm BM-7179 Motor/Impeller Kit 320788-704 protecting your piping system from

protecting your piping system from pressure surges

and compatible actuators for your specific system requirements

Its over-center spring mechanism ensures a secure

this ASME Section IV certified safety valve is factory-preset to 80 PSI

supporting the 325-3's lever-acting design and multi-positional mounting capabilities when used without a vent limiter

Hydrotherm BM-7179 Motor/Impeller Kit 320788-704 protecting your piping system fromEnsure your hydronic heating system maintains peak efficiency with the Hydrotherm BM 7179 Motor Impeller Kit. This genuine replacement component is engineered specifically for Hydrotherm boilers, providing the mechanical power required for consistent fluid circulation and heat transfer. As a field ready solution, the kit includes a high torque replacement blower motor and a precision balanced OEM impeller, essential for resolving common system