GRUNDFOS - 3 Speed Pumps - CAST IRON UPS26-99FC 230 3-speed, 1/6 HP, flanged housing - 52722513

The Grundfos UPS26-99FC (MPN 52722513) is a commercial-grade three-speed cast iron circulator pump engineered for hydronic heating, radiant floor heating, geothermal, and HVAC circulation systems. Powered by a 230V single-phase motor with a 1/6 HP output, this maintenance-free wet rotor circulator provides dependable performance while allowing installers to select one of three operating speeds to match system requirements. The durable cast iron housing, composite impeller, and water-lubricated ceramic bearings deliver quiet operation and exceptional reliability. An integral removable check valve prevents reverse flow, making the UPS26-99FC an excellent solution for residential and light commercial closed-loop heating and cooling applications.

Cross References

• Grundfos — 52722513
• Grundfos — UPS26-99FC
• Taco — 0011-F4 / 0014-F1
• Bell & Gossett — PL-30 / Series PR

Usage

The Grundfos UPS26-99FC is designed to circulate heated or chilled water through closed-loop hydronic systems. It is commonly installed on boilers, radiant floor heating systems, geothermal heat pumps, fan coil units, air handlers, and primary/secondary pumping systems. The three-speed selector enables installers to optimize flow and head pressure for varying system demands, while the included removable check valve helps prevent reverse circulation. Its maintenance-free wet rotor construction eliminates mechanical seals, ensuring quiet operation and long service life with minimal maintenance.