McDonnell & Miller 67-G Low Water Cut Off Refrigerant The 30 inch capillary tube

The 30 inch capillary tube provides the necessary reach for flexible bulb mounting on the suction line

this heavy-duty assembly includes the 901838 motor

providing direct access to the recalibration screw on the dial face for field zeroing or span adjustments

This assembly is rated for a maximum working pressure of 450 psig and requires a torque of 300 in-lb for secure flange mounting

Engineered for high-load industrial and commercial HVAC applications

McDonnell & Miller 67-G Low Water Cut Off Refrigerant The 30 inch capillary tubeThe McDonnell & Miller 67 G is a float operated mechanical low water cut off engineered specifically for steam boilers and millivolt service applications. For contractors managing residential or commercial steam systems, this auto reset control provides critical burner protection by interrupting the millivolt burner circuit if the water level drops to a dangerous point. The unit features dual precision switches, allowing for simultaneous low water cut