Series IPF isolation pump flanges are designed to isolate circulator pumps to facilitate pump replacement or repairs. They fit most circulator pumps and install directly to the circulator pump flange. The flanges feature a two-piece brass body and flange design with virgin PTFE seats and quarter-turn open or close operation, says the company. They are available in 1/2- to 2-inch sizes with threaded end connections and 1/2- to 1-inch sizes with sweat end connections. They have a maximum operating temperature of 406 degrees F (208 degrees C) at 100 psi (6.9 bars). The series comes standard with mounting nuts and bolts.
Watts Regulator Co., Attn: Literature Dept., PF-IPF, 815 Chestnut St., North Andover, MA 01845-6098; 800-617-3274; 978-689-6209 (fax); www.wattsreg.com.