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Direct OEM Compatibility: Serves as the designated replacement for A-3768
Its rugged gray finish and UL-listed/CSA-approved construction meet the strict requirements of field contractors looking for a durable replacement for older 11B18 series units or competitive aquastat controls
As a normally closed (NC) switch
while the pivot design between the disc and spring compensates for side thrust
providing the necessary torque to start against high differential pressures
McDonnell & Miller 157-1 Replacement Casting Els PW 17895 Direct OEM Compatibility: Serves asThe McDonnell & Miller 157 1 Replacement Casting is a mission critical component for maintaining the structural integrity of Series 157 low water cut offs. As a heavy duty boiler water column casting, this unit serves as the primary float chamber for combination LWCO and pump controllers in high pressure steam applications. For technicians managing industrial or commercial systems, utilizing an authentic 157 1 body casting ensures precise alignment