Taco Frame-Mounted End Suction Pumps (FI / SFI Series)

Taco FI pumps feature a rigid steel base, flexible coupling and sealed-for-life bearings for stable operation and simplified maintenance. The top centerline discharge provides self-venting, while rear pullout construction allows servicing without disturbing system piping. A dry shaft design and replaceable shaft sleeve protect components and simplify seal replacement. SFI SelfSensing versions provide integrated variable-speed control and ProBalance® balancing; optional ECM packages improve energy efficiency.

Sizes: 1½–8 inches.
Performance: 20–4,800 GPM; 5–380 ft head; ½–200 HP; 1,160–3,500 RPM, depending on model.
Working pressure: Standard 175 PSIG (1,210 kPa); optional 300 PSIG (2,070 kPa), subject to pressure–temperature limits.
Fluid temperature: 250°F (120°C); cooled seal flushing recommended above 225°F and required above 250°F.
Connections: ANSI Class 125 flanges; optional Class 250.
Materials: Cast iron casing and cover; ductile iron casing for Class 250; bronze or stainless steel impeller; Type 416 stainless steel shaft.
Seal: Ceramic/EPT standard; optional tungsten carbide or silicon carbide.
Bearings: Sealed-for-life bearings with minimum L10 design life of 60,000 hours.
Base: Welded structural steel with grouting access and integral drain pan with ¾-inch drain connection.
Service provisions: Rear pullout construction, replaceable shaft sleeve, ¼-inch NPT pressure taps and casing drain.
Options: Bronze wear ring, seal flush line, 5-micron filter, cyclone separator and alternative coupling guard.
SFI controls: Constant flow, constant pressure, flow compensation and duplex alternation; no-flow/dry-run alerts with optional shutdown.
ECM package: 3–10 HP, 1,750 RPM, 230/460 V, three-phase, 60 Hz; TEFC motor with required variable-frequency drive.
eLink™: NFC access to equipment documentation and support.

Rigid base reduces vibration and improves alignment.
Self-venting discharge simplifies piping and reduces piping strain.
Rear pullout design simplifies maintenance.
Dry shaft and replaceable sleeve reduce component wear and servicing costs.
Sealed bearings reduce routine lubrication requirements.
Optional SelfSensing and ECM packages reduce balancing effort and energy consumption.

Other Products From Taco Comfort Solutions

Heavy-duty centrifugal pumps with efficient double-suction impellers and modular construction for reliable water circulation and easy maintenance.

Compact, close-coupled centrifugal pumps for heating and cooling systems, with a back pullout design for servicing without disconnecting piping.

Single-stage centrifugal pumps providing quiet, reliable water circulation for heating, cooling, pressure boosting and water supply.

Steel expansion tanks with a removable butyl rubber bladder that permanently separates air and water. Designed for hydronic expansion control