This base-mounted end suction pump utilizes a class 30 cast iron casing with an integrally cast center-line discharge. The assembly incorporates a bronze impeller and a stainless steel shaft protected by a replaceable bronze shaft sleeve, ensuring the circulating fluid remains isolated from the shaft via a dry shaft design. A mechanical seal consisting of ceramic seat halves and EPT rubber components facilitates operation at pressures up to 125 PSI. This pump structure maintains hydraulic balance and provides ports for suction and discharge gauge connections.
This assembly utilizes a 20 HP premium efficiency TEFC motor operating at 1750 RPM, integrated with Aegis grounding and a 380-460V 3PH power supply, yielding 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 1 / IP 21 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.