McDonnell & Miller 64-HD Cut Off R-410A this 1/2 inch gauge cock

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

this ASCO RedHat valve offers the durability required for high-cycle gas burner applications

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

OEM Compatibility: Precision-engineered for Dunkirk

ensuring reliable signal transmission to the boiler control modules

McDonnell & Miller 64-HD Cut Off R-410A this 1/2 inch gauge cockThe 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