Grundfos Cast Iron Flange Set NPT Pipe Fitting

The Grundfos cast iron flange set (also called a pump flange set or companion flange kit) gives you a secure, threaded connection between a Grundfos circulator pump and your piping. The flanges have NPT (National Pipe Thread) connections, so they thread directly onto standard NPT pipe. This makes pump installation and replacement simple in hydronic heating, radiant floor, hot water recirculation, and similar systems.

Key Features:

• Cast iron construction for durable, long-lasting service in closed-loop hydronic systems
• NPT threaded connections for a straightforward pipe-to-pump interface
• Made by Grundfos to match the connections on Grundfos circulator pumps
• Supplied with the gaskets and fasteners needed to seal the flange-to-pump joint
• Suitable for residential, commercial, and light industrial heating and cooling applications

Grundfos is a well-known name in pumps and pump accessories. Using Grundfos flanges helps keep the connection leak-resistant and makes it easy to service or swap the pump later. Choose the child item that matches your pump model and pipe size.