Armstrong Fluid Technology 816303-317K Impeller Kit 318973-401 significantly reducing the risk of

significantly reducing the risk of mineral buildup or mechanical failure

Larger globe valves often encounter high differential pressures that exceed the torque rating of a single actuator

By keeping the crankcase temperature above the system's dew point

Using it on lower BTU models will result in over-firing and potential manifold failure

Armstrong Fluid Technology 816303-317K Impeller Kit 318973-401 significantly reducing the risk ofThe Armstrong Fluid Technology 816303 317K Impeller Kit is a precision engineered OEM replacement part designed to restore the hydraulic efficiency of high performance circulator pumps. This comprehensive kit features a 5. 25 inch Noryl impeller, a high strength thermoplastic known for its exceptional dimensional stability and resistance to corrosion and scaling in demanding HVACR systems. By utilizing an injection molded replacement impeller kit,