Bell & Gossett 189128LF 3-3/8″ NFI Impeller (Series HV & 2″ Series)

The Bell & Gossett 189128LF is a replacement impeller with a 3-3/8″ outside diameter. It repairs Series HV pump models HV-NFI and HV-BNFI and Series 2-inch models 2-NFI and 2-BNFI. The impeller is a rotating component within the pump casing that transfers mechanical energy from the motor to the fluid being pumped. The main purpose of a pump impeller is to convert the rotational energy from the motor into kinetic energy in the fluid. As the impeller rotates, it creates a centrifugal force that pushes the fluid away from the center of rotation, causing it to move outward and thus create flow.