This base-mounted end suction pump utilizes a cast iron casing with an integrally cast bronze impeller and a stainless steel shaft. A bronze shaft sleeve protects the shaft components while a ceramic seat and EPT rubber mechanical seal manage fluid containment. Constructed with a dry shaft design, this assembly supports operating pressures up to 125 PSI. The volute orientation incorporates center-line discharge for positive air venting, and the internal architecture allows for maintenance of the seal and bearing housing without disturbing the existing system piping.
The 25 HP Premium Efficiency TEFC motor operates at 1750 RPM, integrates Aegis grounding, and accepts 200-230V / 3PH power, yielding a DOE PEI rating 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.