McDonnell & Miller Series FS6 High Sensitivity Liquid Flow Switches

• For heavy duty applications where high sensitivity is required, such as water treatment systems, cooling systems for electronic circuits, compressors, booster pumps, and bearings, and other applications that need instant switching
• In-line configuration eliminates need for a pipe tee
• Very high flow capacity
• Actuates at extremely low flow rate
• Sizes available
– 3⁄4″ NPT
– 1″ NPT
• Single pole, double throw snap switch
• Switch compartment is completely sealed to protect it from the liquid
• Sensitivity adjusting screw makes flow adjustment easy
• Optional feature
– BSPT threads
• Minimum temperature (fluid or ambient) 32°F (0°C)
• Maximum temperature 225°F (107°C)
• Maximum operating pressure 100 psi (7 kg/cm2)

Model FS6-W High Sensitivity Liquid Flow Switches

• For applications requiring a water-tight, dust-tight, or a NEMA 4X rated flow switch