This base-mounted end suction pump is constructed with a cast iron casing and a bronze impeller. The pump utilizes a dry shaft design that prevents contact between circulating fluids and the stainless steel shaft, which is protected by a replaceable bronze shaft sleeve. Mechanical sealing consists of a ceramic seat half and EPT rubber, rated for a maximum pressure of 125 PSI. Gauge ports are positioned at the suction and discharge connections, while integrally cast mounting feet support the unit. This assembly maintains hydraulic balance through a design that permits service without disturbing system piping.
Powered by a 25 HP Premium Efficiency TEFC motor operating at 1750 RPM, the assembly integrates Aegis shaft grounding and accepts 380-460V / 3PH electrical input, yielding a DOE PEI rating of 0.44. 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.