163200 Model 93-7B-HD McDonnell & Miller Head Mechanism

The McDonnell & Miller #93-7B-HD Head Mechanism Datasheet Installation Guide Series 93Low Water Cut-Off/Pump Controller • For commercial and industrial low or high pressuresteam boilers• Maintains consistent water level regardless of pressure• For boilers of any steaming capacity• No. 5 Switch included• Magnetic repulsion eliminates need for bellows• Optional features–Manual reset• 7B switch (135ohm proportional control signal) tomaintain constant boiler water level• 1″ NPT connections• Maximum pressure 150 psi (10.5 kg/cm2)