This end suction pump utilizes a cast iron casing with a center-line discharge and an integrally balanced bronze impeller. The assembly incorporates a dry shaft design that prevents circulating fluid from contacting the stainless steel shaft, which is protected by a replaceable bronze shaft sleeve. A ceramic and EPT mechanical seal regulates fluid containment within the unit, which sustains operating pressures up to 125 PSI without a wear ring. The pump volute integrates gauge ports at both the suction and discharge connections to facilitate system monitoring and maintenance.
The 25 HP premium efficiency ODP motor operates at 3450 RPM and incorporates Aegis grounding, a power supply compatibility of 380-460V / 3PH, and 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.