The Check-Trol flange is a combination isolation
valve, flow control valve, and companion flange for
circulators. The ball valve allows the circulator to be
removed from the system without draining the system.
The internal spring check prevents gravity circulation.
Free floating companion flange makes
pump installation a snap.
For use with the following circulators:
- NRF/NBF/SSF Wet Rotors (Except NRF-45, NBF-45)
- Series PL-30, PL-36, PL-55
- Series 100, PR and LR