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Ships within 48 hours · Estimated delivery Oct 17 - Oct 22
Class IV Leakage Rating: Engineered for tight close-off
commonly used to prevent high-side pressure spikes from damaging the system
Is the 2-M switch compatible with both steam and hot water boilers
Optimized Heating: 5KW / 17
McDonnell & Miller 193-A-7B Controller R-22 Class IV Leakage Rating: EngineeredThe McDonnell & Miller 193 A 7B (Part Number 164500) is a robust, float operated combination low water cut off and pump controller specifically engineered for commercial and industrial steam boiler applications. Designed to handle a maximum pressure of 150 PSI, this unit integrates a No. 7B potentiometer switch, which provides a 135 ohm proportional control signal to maintain a constant boiler water level by modulating the feed valve. Unlike standard
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