McDonnell & Miller 94-M Pump Controller R-22 For watertight or explosion-proof needs

For watertight or explosion-proof needs

ensuring consistent thermal cycling without the modulation lag found in standard throttling valves

Advanced Thermal Material: Constructed from premium silicon carbide to withstand intense thermal shock and maintain structural integrity over thousands of ignition cycles

the 42-21268-04 is the recommended current superseding part for those legacy numbers

features a 29-inch bolt circle and is specifically designed to support motors with a 5-5/8 inch diameter

McDonnell & Miller 94-M Pump Controller R-22 For watertight or explosion-proof needsThe McDonnell & Miller 94 M is proof of heavy duty reliability for high pressure steam applications, serving as a robust combination low water cut off and pump controller. Designed specifically for steam boilers with a maximum pressure of 250 psi, this unit utilizes manual reset SPDT switches to ensure precise water level management and failsafe protection. The dual snap acting switches prevent rapid cycling, reducing mechanical wear on your pump