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

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

this specific part number typically includes a removable bypass plug that can be swapped for a provided orifice for continuous minimum flow

the start point is field-adjustable from 2 to 12 Vdc (factory-set at 6 Vdc)

McDonnell & Miller 194-A-7B Controller R-22 centered grip on both roundThe 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