McDonnell & Miller 64-HD Cut Off R-410A Robust Mounting: Dual mounting ears

Robust Mounting: Dual mounting ears facilitate strain-free installation on ductwork or flat equipment surfaces

The SPDT relay configuration (1 NO / 1 NC) is rated for 10A resistive loads at 120/240 VAC

Precise Pressure Calibration: Operates at a 245 PSI cut-in and 400 PSI cut-out to ensure tight control of the refrigeration cycle

OEM Compatibility: Precision-engineered for Dunkirk

this 1/2 inch gauge cock is frequently used as a try-cock or isolation valve on steam boilers and is rated for the pressures and temperatures of most low-to-medium pressure steam systems

McDonnell & Miller 64-HD Cut Off R-410A Robust Mounting: Dual mounting earsThe McDonnell & Miller 144400, also known as the 64 HD Head Mechanism, is a heavy duty replacement unit designed for Series 64 and Series 764 low water cut offs. Engineered for both hot water and steam boilers, this mechanical oversight component facilitates an auto reset function to ensure continuous system protection without manual intervention. As a float type LWCO mechanism, it is rated for a maximum boiler pressure of 50 PSI. This unit serves as