This end suction pump utilizes a class 30 cast iron casing and a bronze impeller to facilitate hydraulic performance. The dry shaft assembly comprises a stainless steel shaft paired with a bronze shaft sleeve, which prevents contact between the circulating fluid and the shaft. A ceramic and EPT mechanical seal provides containment at pressure ratings up to 125 PSI. This pump incorporates integrally cast mounting feet and a centerline discharge for air venting. The design allows for maintenance without disturbing system piping, while pressure tappings on suction and discharge connections permit system monitoring.
A 20 HP Premium Efficiency TEFC motor operating at 1750 RPM includes Aegis grounding and utilizes a 380-460V / 3PH power supply, resulting in 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 12 / IP 55 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.