Grundfos 59896213 UP15-10B5 Bronze Circulator Pump 1/25 HP 115V 1/2" Sweat

The Grundfos UP15-10B5 is a single-speed bronze circulator pump designed for open loop heating and hot water recirculation applications. With 1/25 HP motor power and 115V single-phase operation, this pump is ideal for radiant heating systems, solar thermal systems, storage tank circulation, fan coil units, and chilled water cooling applications.

Key Features:

• Bronze pump housing protects against corrosion and is suitable for potable water applications
• 1/2" sweat inlet and outlet connections for easier installation without flanges
• Corrosion-resistant composite PES impeller
• Ceramic shaft and radial bearings for long service life
• Stainless steel rotor can and bearing plate
• Carbon axial bearing for reliable operation
• Maintenance-free design with quiet operation
• Compact dimensions: 5" height x 3.5" length

Specifications:

• Power: 1/25 HP (25 watts maximum input)
• Voltage: 115V, 60 Hz, single-phase
• Maximum current: 0.22 amps
• Flow rate: 0-8.37 GPM
• Maximum head: 6.23 feet
• Temperature range: 35.6°F to 219.2°F
• Maximum ambient temperature: 104°F at 176°F liquid
• UL and CSA certified
• 2-year manufacturer warranty

The bronze construction makes this pump particularly well-suited for open system applications where water conditions are not compatible with cast iron housings. The sweat connections eliminate the need for additional flanges, reducing installation time and cost.