Mcdonnell & Miller Flow Switch
Model: FS7-4
• Universal design serves the widest variety of large pipe
applications, including heating and hydronic systems,
air conditioning, refrigeration and process work
• 11?4″ NPT
• Brass with sealed tube construction
• Single pole, double throw snap switch
• Magnetic switching mechanism eliminates need for
bellows
• Sensitivity adjusting screw makes flow adjustment easy
• Paddles can be trimmed to suit application needs
• Optional features
– Extended paddle arm – Model FS7-4L
– Two SPDT switches to make or break two separate
circuits
– Stainless steel
– BSPT threads
– Fire sprinkler service – Model FS7-4F
• Minimum temperature (fluid or ambient) 32°F (0°C)
• Maximum temperature 300°F (149°C)
• Maximum operating pressure
300 psi (21 kg/cm2)
1000 psi (70 kg/cm2) – Stainless Steel models
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