This base-mounted end suction pump comprises a cast iron casing with a centerline discharge for positive air venting. The unit integrates a bronze impeller and a stainless steel shaft covered by a replaceable bronze shaft sleeve. A ceramic seal seat with EPT elastomer construction provides the mechanical seal interface, while the dry shaft design isolates the circulating fluid from the shaft. Integrally cast mounting feet on the casing provide support, and the assembly utilizes a mechanical seal capable of handling temperatures up to 250°F.
The pump assembly utilizes a 20 HP premium efficiency ODP motor operating at 1750 RPM, which incorporates Aegis grounding for protection, configured for a 200-230V 3PH power supply, with a DOE PEI 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 1 / IP 21 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.