This base-mounted end suction pump utilizes a cast iron casing with integrally cast mounting feet and a bronze impeller. A bronze shaft sleeve protects the stainless steel shaft through a dry shaft design that prevents circulating fluid from contacting the internal shaft. The mechanical seal incorporates a ceramic seat and EPT rubber, providing a pressure rating of 125 PSI. Center-line discharge construction facilitates positive air venting, while gauge ports at the suction and discharge connections allow for monitoring system pressure.
This unit employs a 20 HP premium efficiency TEFC motor operating at 3450 RPM with Aegis grounding, configured for a 380-460V / 3PH power 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 4X / IP 66 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.