This base-mounted end suction pump is constructed with a cast iron casing featuring integrally cast mounting feet and a centerline discharge for positive air venting. The unit utilizes a dynamically balanced bronze impeller and a stainless steel shaft protected by a replaceable bronze shaft sleeve in a dry shaft design. Mechanical sealing comprises a ceramic seat and EPT rubber, rated for a maximum pressure of 125 PSI. The assembly incorporates a bronze wear ring to maintain hydraulic performance and supports maintenance without disturbing system piping connections.
The 20 HP premium efficiency TEFC motor operates at 1750 RPM, integrates Aegis grounding, and is powered by a 380-460V / 3PH supply, resulting in a DOE PEI rating of 0.46. 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.