Description
1″ SWT IF lead-free pump isolation valves (pair), which is a combination isolation ball valve and companion flanged for circulators, with a 150 psig maximum working pressure and 200°F maximum operating temperature. Fits Bell & Gossett NRF/NBF/SSF wet rotors, Series PL, Series 100, PR and LR circulators and allows easy service or replacement of the circulator without the need to drain the system.
