Most circulator pumps require flanges to connect to the piping in a hydronic system. For standard-sized pumps, flanges have a universal size. They may need to be purchased separately from the pump. Flanges are sold in pairs and include the nuts, bolts, and gaskets necessary for connection.
Pumps do not always come with flanges because of variances in pipe size. Standard 3/4” and 1” flanges fit on the same pump. They match up with 3/4” and 1” pipes, respectively. SupplyHouse.com offers shut-off flanges from Taco and Isolation Flanges from Webstone. Bronze flanges are ideal for use in open systems.
Pumps do not always come with flanges because of variances in pipe size. Standard 3/4” and 1” flanges fit on the same pump. They match up with 3/4” and 1” pipes, respectively. SupplyHouse.com offers shut-off flanges from Taco and Isolation Flanges from Webstone. Bronze flanges are ideal for use in open systems.
