McDonnell & Miller Liquid Flow Switches
Model: FS7-4E
• For hazardous environment applications requiring a
NEMA 7 (Class I, Group C or D) or NEMA 9 Class II,
Group E, F, or G) rated flow switch
• 11⁄4” (32mm) NPT
• Brass with sealed tube construction
• Single pole, double throw snap switch
• Magnetic switching mechanism
• Sensitivity adjusting screw makes flow adjustment easy
• Paddles can be trimmed to suit application needs
• Optional features
– Extended paddle arm
– Stainless steel
– BSPT threads
– Sprinkler service (UL & ULC listed)
• 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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