This base-mounted end suction pump comprises a cast iron casing with center-line discharge and integrally cast mounting feet. The assembly utilizes a bronze impeller balanced to ANSI Grade G6.3 and a stainless steel shaft protected by a replaceable bronze shaft sleeve in a dry shaft design. The mechanical seal incorporates a ceramic seat and EPT rubber, rated for 125 PSI, and includes a wear ring to facilitate maintenance. The pump construction supports operation within systems through flush seal line taps and gauge ports located on both suction and discharge connections.
Driven by a 25 HP Premium Efficiency TEFC motor operating at 1750 RPM, the system integrates Aegis grounding and a 380-460V / 3PH power supply, resulting in a DOE PEI rating of 0.45. 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.