This base-mounted end suction pump comprises a cast iron casing with an integrally cast mounting foot and a bronze impeller. The assembly integrates a dry shaft design that eliminates circulating fluid contact with the stainless steel shaft, which is protected by a replaceable bronze shaft sleeve. A mechanical seal utilizes ceramic seat halves and EPT rubber to provide fluid containment at pressures up to 125 PSI. This pump configuration excludes a wear ring and provides center-line discharge for air venting.
The 25 HP premium efficiency TEFC motor operates at 1750 RPM and incorporates Aegis 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 12 / IP 55 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.