The isolation flange is a combination of an isolation ball valve and a companion flange for circulators. The isolation flange allows easy service or replacement of the circulator without the need to drain the system. The isolation flange fits the Bell & Gossett NRF/NBF/SSF wet rotors, Series PL, Series 100, HV, PR and LR circulators.
150 psi maximum working pressure|250 deg F maximum operating temperature|Free floating flange allows easy alignment and installation of pumps|Isolates the circulator so you don't need to drain the entire system|50 State lead free|Lead free
Bell & Gossett Isolation Flange, For Use With: NRF/NBF/SSF, Series PL/36/55, Series 100, PR and LR Circulators, 1-1/2 in FNPT, Brass, 3-23/64 in L