Combination Low Water Cut Off and Pump Controller
McDonnell & Miller 93 and 94 Water Level Control
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with Potentiometer Switch for Steam Boilers with 250 PSI Max Pressure Head Mechanism Only (Part Number 166400)
• For commercial and industrial low or high pressure steam 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) to maintain constant boiler water level – BSPT threads • 11 ⁄4" NPT connections • Maximum pressure 250 psi (17.6 kg/cm2 ) 10 Bolt Flange
