Mcdonnell & Miller 157S-MD, Float Type, Combo LWCO & Pump Controller w/ Water Column & Maximum differential (Steam)

For residential, commercial and industrial low or high pressure boiler applications Specifications For boilers of any steaming capacity Monel bellows provides corrosion resistance Float chamber with integral water column provided Snap action for high temperature service -1 Single pole, single throw switch for pump control -1 Single pole, double throw switch for low water cutoff and alarm actuation Prevents nuisance burner shutdowns in low pressure applications,li>Maximum operating pressure 50 psi "