This base-mounted end suction pump is constructed with a cast iron casing and bronze impeller. The assembly integrates a stainless steel shaft with a bronze shaft sleeve, utilizing a dry shaft design that prevents contact between fluid and the shaft. Internal components include a mechanical seal with a ceramic seat and EPT rubber, rated for 125 PSI with a replaceable wear ring. The pump incorporates flush seal line taps for maintenance and pressure tappings on the suction and discharge connections for monitoring system performance.
The 25 HP premium efficiency TEFC motor operates at 1750 RPM and utilizes Aegis grounding, powered by 380-460V 3PH, yielding 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.