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McDonnell Miller

Series 851

• For receiver tanks in commercial or industrial applications
• Mounts directly on the receiver, eliminating need for equalizing

Series 93

• For commercial and industrial low or high pressure steam boilers

Series 94

• For commercial and industrial low or high pressure\ steam boilers
• Maintains consistent water level regardless of pressure

Series AF1

• For general purpose applications with medium and high velocity requirements
• Paddle fits 8” (203mm) minimum duct size, or 6” (152mm) if trimmed

Series AF2

• For low velocity applications
• Paddle fits 8” (203mm) minimum duct size
• Two electrical knock-outs allow connection from either end

Series AF3

• For general purpose low velocity applications where the most economical flow switch is desired
• Paddle fits 8” (203mm) minimum duct size
• Two electrical knock-outs allow connection from either end

Series AFE-1

• For industrial hazardous environment applications requiring a NEMA 7 (Class I, Division I, Group C and D) or NEMA 9 (Class II, Division I, Group E, F, and G) rated flow switch for medium velocity

Series FS1

• For general purpose applications where high sensitivity is required and moderate or low flow rates are encountered such air conditioning, heating and hydronic systems, water, fuel oil, some viscous liquids and oils in process work 
• In-line configuration eliminates need for a pipe tee...

Series FS250

• Universal design serves the widest variety of applications
• For starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners, metering devices and others

Series FS4-3

• Universal design serves the widest variety of applications
• For starting or stopping electrically operated equipment such as signal lights, alarms, motors, automatic burners, metering devices and others
• Replacement for common flow switches from Johnson/Penn, Potter/Taco, Watts,...

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