Grundfos Pumps UPS50-80/2 Circulator Pump

The Grundfos UPS50-80/2 Circulator Pump delivers reliable performance for heating systems, hot domestic water, and cooling applications. This 3-speed, canned-rotor pump uses a large stator to ensure efficient, steady flow even under varying loads.

Key specifications include a 3/4 HP motor, 115 Volt AC at 60 Hz, and a 2-pole asynchronous PSC drive. End connections are Flanged x Flanged, and the durable ASTM 40B cast iron casing houses a ceramic shaft and stainless steel impeller for long life. The pump supports operating temperatures from 10 to 120 °C and withstands up to 145 PSI. It is lead-free and UL/IEC 85/34-5 compliant, with carbon thrust bearing, radial bearing, and bearing plate designed for corrosion resistance, and provided with four 1/2 inch bolt holes.

Warranty: 24 months from the date of delivery.

• 3-speed operation for adaptable flow
• Flanged x Flanged end connections for easy installation
• Canned rotor and large stator for efficiency
• Cast iron casing, ceramic shaft, stainless steel impeller for durability
• Wide temperature range (10–120°C) and high pressure (145 PSI)
• UL/IEC certified and lead-free construction
• Included components: carbon thrust bearing, radial bearing, bearing plate