This base-mounted end suction pump incorporates a cast iron casing with integrally cast mounting feet and a bronze impeller dynamically balanced to ANSI Grade G6.3. The assembly utilizes a dry shaft design that prevents fluid contact with the stainless steel shaft, which is protected by a replaceable bronze shaft sleeve. For pressure regulation, the unit supports 125 PSI operation and includes a wear ring. Sealing is managed by a mechanical seal assembly comprised of a Ni-Resist seat and Buna rubber components. Suction and discharge connections integrate gauge ports for system monitoring, while the dry shaft configuration facilitates maintenance without disturbing system piping.
The 40 HP Premium Efficiency TEFC motor operates at 1750 RPM and incorporates Aegis grounding, power supply compatibility of 380-460V / 3PH, and maintains 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 1 / IP 21 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.