Armstrong S Series circulators feature the unique Armstrong shaft and bearing module for ease of serviceability and maximum interchangeability. Oversized shafts of alloy steel machined to exact tolerances. Impellers are constructed from non-ferrous material and are designed for optimal water delivery. Available in bronze-fitted and all-bronze construction.The S-35 has a 1/6 hp 1800 RPM motor and can be run on 115 volts, single phase. See the attached submittal spec sheet for the flow curve. Part number 174033LF-043 is a Bronze Pump with bronze flanges.
View Recirculating Product Datasheet (pdf format) 
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