The Grundfos UPS 15-55 SUC/TLC circulator pump is a compact, high-efficiency solution engineered with a corrosion-resistant stainless steel pump housing, making it ideal for domestic hot water recirculation and underfloor (radiant) heating systems. Designed for dependable performance, this Grundfos UPS pump ensures consistent water flow and long-lasting durability in residential and light commercial hydronic applications. For improved energy efficiency and system control, the UPS 15-55 can be paired with an external on/off timer switch, allowing the pump to operate only during peak hot water demand periods-reducing energy consumption and operating costs.The pump features a canned rotor construction, integrating the motor and pump into a single sealed unit. This seal-less design eliminates the need for a mechanical shaft seal and uses only two gaskets, reducing maintenance requirements and minimizing leak risks. The system is self-lubricating, as the pumped liquid lubricates the bearings for smooth, efficient operation.
- Stainless steel pump housing suitable for underfloor heating systems
- Compact design
- Maintenance-free
- Corrosion resistant impeller
- Quiet operation
- Multi-speed