McDonnell & Miller Series FS7-4E Industrial Liquid Flow Switches
• 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″ 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 body and paddles
– BSPT threads
• 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
