This base-mounted 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 replaceable bronze shaft sleeve incorporates a dry shaft design, which prevents the circulating fluid from contacting the shaft and operates at a maximum pressure of 125 PSI. The pump relies on a mechanical seal constructed with a ceramic seat half and EPT rubber to maintain system integrity. This assembly provides a center-line discharge for air venting and includes pressure tappings on both the suction and discharge connections to monitor hydraulic performance.
The 20 HP premium efficiency TEFC motor operates at 3450 RPM, incorporates Aegis grounding, utilizes 380-460V / 3PH power, and results in a DOE PEI of 0.48. 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 4X / IP 66 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.