Bell & Gossett 101223LF Isolation Flange Ball Valve, 1-1/4 in Connection, NPTF, 150 psi Pressure, Brass Body

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.