This base-mounted end suction pump is constructed with a cast iron casing and a bronze impeller to handle fluid circulation. The assembly integrates a stainless steel shaft paired with a replaceable bronze shaft sleeve, utilizing a dry shaft design rated for 125 PSI without a wear ring. A ceramic mechanical seal with EPT rubber components provides fluid containment within the pump housing. The unit incorporates a center-line discharge for air venting and includes pressure tappings on both the suction and discharge connections for monitoring system performance.
This unit operates with a 20 HP premium efficiency TEFC motor at 3450 RPM, which incorporates Aegis grounding and a power supply of 380-460V / 3PH, yielding 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 4X / IP 66 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.