McDonnell & Miller Mechanical Low Water Cut-Offs, Series 63, 64, 751P, 752P, and 764 Are Used For Residential, Commercial Or Industrial Low Pressure Steam And Hot Water Boiler Applications.
McDonnell & Miller Mechanical Low Water Cut-Offs, Series 63, 64 751P and 752P are solidly manufactured for long lasting durability and dependability. For boilers of any steaming capacity. Series 63, 64 and 764 are heavy duty units with adjustable BX outlet for easy installation. Dual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder. Pack less bellows. 1 or 2-1/2 inch side tapping provided. Manual reset available. Series 751P and 752P units with Manual Reset have self-cleaning probe which reduces probe maintenance to once every five years instead of annually. Test Button allows control to be tested without draining the boiler or system. Green Power On and Red LEDs give visual indication that the unit is powered up and when a low water condition is detected. 24V or 120V with 3/4 inch NPT. All cut-offs have 50 psi maximum steam pressure.