GRUNDFOS - FLANGE KITS FOR FLANGE MOUNTED PUMPS (BRONZE) ALPHA2 15-55 SF bronze flange set

The Grundfos GF 15/26 Bronze Flange Kit is designed for installing flange-mounted Grundfos circulator pumps such as the ALPHA2 15-55 SF and compatible UP/UPS series models. Manufactured from corrosion-resistant bronze, each kit includes two companion flanges, two flange gaskets, and mounting bolts with nuts to provide a secure, leak-free connection between the pump and threaded piping. Available in 3/4 in and 1 in NPT sizes, these flange kits simplify installation and servicing while ensuring long-term durability in potable water and hydronic heating applications.

Cross References

• Grundfos 519651 – 3/4 in Bronze GF 15/26 Flange Set
• Grundfos 519652 – 1 in Bronze GF 15/26 Flange Set
• Compatible with ALPHA2 15-55 SF, UP 15, UPS 15, selected UP 26 and UP 43 series circulators.

Usage

These flange kits are used to connect flange-mounted Grundfos circulator pumps to threaded hydronic piping. The bronze construction makes them suitable for closed-loop heating systems as well as potable hot-water recirculation applications. During installation, the supplied gaskets create a watertight seal while the bolts securely fasten the pump to the companion flanges, allowing quick pump replacement or maintenance without modifying the piping.