This base-mounted end suction pump incorporates a cast iron casing with a bronze impeller and a stainless steel shaft protected by a replaceable bronze shaft sleeve. This dry shaft design eliminates contact between the circulating fluid and the shaft to prevent corrosion. The assembly utilizes a mechanical seal comprised of a ceramic seat half and EPT rubber, engineered to handle system pressures up to 125 PSI. A bronze wear ring is integrated into the casing to maintain hydraulic efficiency, while the center-line discharge configuration allows for positive air venting during operation.
The 25 HP premium efficiency TEFC motor operates at 1750 RPM, utilizes Aegis grounding, and is powered by 380-460V / 3PH electricity, resulting in 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.