and Series 194 combination low water cut-off (LWCO) and pump controllers

and 551 series models used in pneumatic pilot applications

3 Cv flow coefficient with an equal percentage flow characteristic for superior modulating control

piping using the included spring clip

Key Benefits Universal Cross-Compatibility: Fully interchangeable with part number 37K6301 for seamless inventory management

McDonnell & Miller 93-HD Pump Controller R-22 and Series 194 combination lowThe McDonnell & Miller 93 HD Pump Controller (Part Number 162400) is a heavy duty combination low water cut off and pump controller engineered specifically for commercial and industrial steam boiler systems. This unit features a specialized head mechanism designed for seamless integration into existing Model 93 or Model 193 float chambers. By utilizing two snap acting SPDT switches, it provides precise boiler feed pump control while ensuring critical