Grundfos 59896773 UPS15-55SFC Stainless Steel 3-Speed Circulator Pump 1/12 HP 115V

The Grundfos UPS15-55SFC is a professional-grade stainless steel circulator pump designed for domestic hot water recirculation, hydronic heating systems, and underfloor heating applications. This three-speed pump features a corrosion-resistant stainless steel housing (AISI 304) that provides superior durability and allows for use in both open and closed loop systems.

Key Features:

• Three-speed operation (Low/Med/High) for optimal system performance and energy efficiency
• 1/12 HP motor with power inputs of 58W, 77W, and 87W across three speeds
• Maximum flow rate of 25 GPM with maximum head of 18 feet
• Removable integral check valve for added convenience
• Stainless steel two-bolt flange connections (GF 15/26) with 6.5-inch port-to-port length
• Ceramic shaft and radial bearings with carbon axial bearing for long service life
• Canned rotor design eliminates shaft seal for maintenance-free operation
• Self-lubricating bearings using pumped liquid eliminate need for external lubrication
• Quiet operation suitable for residential installations

Technical Specifications:

• Voltage: 115V, 60 Hz, single-phase
• Current draw: 0.53A to 0.75A depending on speed setting
• Maximum operating pressure: 145 PSI (10 bar)
• Liquid temperature range: 36°F to 230°F (2°C to 110°C)
• Maximum ambient temperature: 104°F
• UL and CSA approved
• Lead-free and ANSI 61 compliant
• 2-year warranty from date of installation

This versatile circulator pump is compatible with various applications including radiant heating, hot water recirculation, closed-loop hydronic heating, and chilled water cooling systems. The SuperBrute technology ensures efficient and reliable performance while the stainless steel construction provides excellent resistance to corrosion. This model serves as a direct replacement for competitive pumps from Taco, Bell & Gosset, Wilo, and other manufacturers.