This base-mounted end suction pump comprises a cast iron casing with integrally cast mounting feet and center-line discharge for positive air venting. The unit integrates a bronze impeller and a bronze shaft sleeve mounted over a stainless steel shaft, utilizing a dry shaft design that prevents the circulating fluid from contacting the shaft. The assembly incorporates a mechanical seal with a ceramic seat and EPT rubber, rated for 125 PSI operation. A replaceable bronze wear ring is present within the volute to maintain hydraulic performance.
The 20 HP Premium Efficiency ODP motor operates at 1750 RPM and incorporates Aegis grounding, powered by 200-230V, 3PH electrical input, with a DOE: PEI = 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 1 / IP 21 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.