Optimized Performance: Fixed 1050 RPM speed rated for precise airflow across high-efficiency heat exchangers

which utilizes a specialized blend of desiccants to provide maximum moisture removal and acid capacity

Automatic Reset Logic: Eliminates manual intervention by restoring the electrical circuit once the gas pressure recovers to safe operating levels

Precision Fit: Designed for seamless integration with Spirax Sarco B Series covers

centered grip on both round and square damper shafts within the specified size range

McDonnell & Miller 194-A-7B Controller R-22 Optimized Performance: Fixed 1050 RPMThe McDonnell & Miller 194 A 7B (Part Number 167100) is a heavy duty combination low water cut off and pump controller engineered for commercial and industrial steam boiler applications. Designed to handle a maximum pressure of 250 PSI, this unit integrates a high performance potentiometer switch to provide a proportional 135 ohm signal, ensuring a constant water level is maintained regardless of varying steaming rates. As a veteran grade float