Maximum Flow Efficiency: The 3/4" orifice and high Cv rating ensure minimal pressure drop in high-demand liquid and gas lines

reducing stress on the 1-inch shaft motor and extending the life of the drive assembly

which is the most common size for commercial temperature and pressure ports

effectively eliminating "chattering" or partial flow issues common with undersized aftermarket alternatives

Armstrong Fluid Technology 110223-305 Pump 322838-754 Maximum Flow Efficiency: The 3/4"The Armstrong Fluid Technology 110223 305 Pump, also known as the Model ASTRO 230CI, is a high performance, three speed cast iron circulator designed for closed loop hydronic and solar heating systems. This wet rotor circulator efficiently moves water or glycol solutions through radiators, baseboards, and radiant floor heating setups. As a maintenance free circulator, it features a self lubricating ceramic shaft and bearings, eliminating the need for