This base-mounted end suction pump utilizes a class 30 cast iron casing with integrally cast mounting feet and a bronze impeller. The assembly incorporates a dry shaft design that prevents circulating fluid from contacting the stainless steel shaft. This shaft is protected by a replaceable bronze shaft sleeve and utilizes a mechanical seal consisting of a ceramic seat and EPT rubber components. The pump volute manages pressures up to 125 PSI and supports gauge ports at suction and discharge connections for system monitoring.
Power is provided by a 25 HP premium efficiency TEFC motor operating at 1750 RPM, equipped with Aegis Grounding and rated for 380-460V / 3PH power supply, with a DOE PEI of 0.45. 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 12 / IP 55 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.