GRUNDFOS - 3 Speed Pumps - CAST IRON UPS26-99FC 115 3-speed, 1/6 HP, flanged housing - 52722512

The Grundfos UPS 26-99FC Circulator Pump (MPN 52722512) is a durable 3-speed cast iron hydronic circulator engineered for residential and commercial closed-loop heating systems. Powered by a 115V, 1/6 HP single-phase motor, this maintenance-free canned rotor pump delivers up to 33 GPM with a maximum head of 28.9 ft. The pump features a corrosion-resistant composite impeller, ceramic shaft and bearings, stainless steel rotor can, and an integrated flow check valve to eliminate reverse circulation. Ideal for radiant floor heating, hydronic boilers, geothermal systems, fan coil units, and HVAC applications, the UPS 26-99FC provides quiet, reliable, and energy-efficient circulation.

Cross References

1. Grundfos — 52722512 (UPS 26-99FC)
2. Grundfos — UPS 26-99FC
3. Grundfos — UPS 26-99 Series

Usage

The UPS 26-99FC is designed for closed-loop hydronic heating and cooling systems. It is commonly installed in commercial boilers, radiant floor heating, geothermal systems, fan coil units, snow melting systems, solar heating systems, and primary/secondary HVAC loops. The integrated flow check valve prevents unwanted gravity circulation, while the three-speed selector allows installers to optimize flow and head for different system requirements. The cast iron housing is intended for closed-loop systems and should not be used for potable domestic hot water applications.