This end suction pump utilizes a class 30 cast iron casing and a bronze impeller to facilitate fluid movement. A stainless steel shaft protected by a dry shaft design maintains isolation from circulating fluid, while a replaceable bronze shaft sleeve assists with maintenance. The internal mechanical seal integrates ceramic seat halves and EPT rubber, providing a 125 PSI pressure rating in this configuration without a wear ring. This assembly incorporates a center-line discharge for air venting and includes pressure tappings on both the suction and discharge connections to monitor system performance.
Powering this unit is a 40 HP Premium Efficiency TEFC motor operating at 3450 RPM with Aegis grounding, compatible with 380-460V, 3PH power supply, reaching a DOE PEI rating of 0.47. 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 12 / IP 55 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.