McDonnell & Miller model number 67G is a float-operated low water cut-off with quick hook-up fittings for steam or hot water boilers. This control features an automatic reset with dual switches with millivolt service for low water cut-off and alarm or electric water feeders. Its maximum pressure is 20 psi. Quick hook-up fittings allow for installation directly into gauge glass tappings (1/2" NPT). Blow down valve included.
McDonnell & Miller, a unit of ITT Industries, is a leader in engineering and manufacturing boiler controls, liquid level controls, low-water cutoffs, and flow switches for steam and hot water boilers in industrial, commercial, and building trade applications. McDonnell & Miller specializes particularly in boiler controls and power switches.