This base-mounted end suction pump comprises a cast iron casing with center-line discharge, which facilitates positive air venting. The assembly incorporates a dynamically balanced bronze impeller keyed to a stainless steel shaft. A dry shaft design ensures no contact occurs between the circulating fluid and the shaft, which remains protected by a replaceable bronze shaft sleeve. The mechanical seal assembly utilizes a ceramic seat half with EPT rubber components and operates at a maximum pressure of 125 PSI.
The pump assembly operates with a 5 HP Premium Efficiency TEFC motor at 3450 RPM, incorporates Aegis Grounding, and receives power from a 380-460V / 3PH supply, achieving a DOE PEI rating of 0.47. 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.