This base-mounted end suction pump utilizes a center-line discharge class 30 cast iron casing with integrally cast mounting feet and a bronze impeller dynamically balanced to ANSI Grade G6.3. The assembly integrates a dry shaft design that prevents contact between the circulating fluid and the stainless steel shaft, which is protected by a replaceable bronze shaft sleeve. Mechanical sealing is managed by an EPT and ceramic seal assembly rated for 250°F operation. The unit is rated for 125 PSI service without a wear ring and incorporates a heavy-duty bearing housing with sealed-for-life bearings that facilitate maintenance without disturbing system piping.
This pump assembly integrates a 50 HP premium efficiency ODP motor operating at 1750 RPM with Aegis shaft grounding, powered by a 380-460V 3PH electrical supply, with a DOE PEI rating of 0.46. The 'S' in the SFI series denotes Taco's advanced Self-Sensing technology, which eliminates remote sensors and field wiring by using internal mathematical algorithms to calculate system resistance and automate variable flow. The included VFD is configured with a fused disconnect without bypass and holds an enclosure NEMA Type 1 / IP 21 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.