Grundfos 00525530 Check Valve Assembly Kit for UPS26 Circulator Pump

The Grundfos 00525530 is a complete check valve assembly kit designed specifically for UPS26 series circulator pumps. This essential replacement component helps maintain proper one-way flow direction in hydronic heating systems, preventing backflow and maintaining system pressure.

Complete Assembly Kit Includes:

• Check valve
• Mounting nut
• Tail piece
• Gasket for proper sealing

This 1-1/4 inch check valve assembly is engineered to fit UPS26-99 and other UPS26 model circulator pumps used in closed-loop hydronic heating applications including radiant heat, baseboard systems, and boiler circulation. The internal flow check (IFC) prevents reverse flow when the pump is off, eliminating the need for a separate in-line check valve.

Applications: Designed for replacement in Grundfos UPS26 series pumps used in residential and light commercial hydronic heating systems, radiant floor heating, snowmelt systems, and boiler primary loops. This assembly is a critical service part that may require periodic replacement due to normal wear or debris accumulation.