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McDonnell & Miller General Catalogue Industrial Controls

McDonnell & Miller Series 67 – Low Water Cut-Offs Mechanical For Steam Boilers

• For residential and commercial applications
• For boilers of any steaming capacity
• Quick hook-up fittings provided
• Lever-operated, full port ball valve for easy blow down
• Adjustable BX outlet for easy installation
• Dual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder
• Optional features
– Low voltage switches for self-generating millivolt circuits
– Manual reset switch (manual reset switch must be ordered separately)
• Large float chamber
• Maximum steam pressure 20 psi (1.4 kg/cm2)

The McDonnel & Miller Series 67 provides continuous protection against a low water condition. Furthermore it satisfies pump control needs for commercial and industrial steam boilers.

If you need a different model other than those listed, please contact us at

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