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McDonnell & Miller General Catalogue Industrial Controls

McDonnell & Miller Series 551-S Water Feeders Make-up

• For receiver tanks in commercial or industrial applications
• Mounts directly on the receiver, eliminating need for equalizing connections
• Quick-change replaceable cartridge valve and strainer
• Proportional feed action
• Mounting Flange – six 7⁄16″ (11.1mm) bolt holes on a 53⁄4″ (146mm) bolt circle
• Maximum water supply pressure 150 psi (10.5 kg/cm2)
• Maximum inlet water temperature 120˚F (49˚C)
• Maximum receiver pressure 35 psi (2.5 kg/cm2

The McDonnell & Miller Series 551-S provide 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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