120171 McDonnell & Miller FS7-4SJ Flow Switch 1-1/4" BSTP

Flow Switches – Liquid

Series FS7-4
Industrial Liquid Flow Switches

Features and Benefits

• Universal design serves the widest variety of large pipe applications, including heating and hydronic systems, air conditioning, refrigeration and process work
• 1-1/4" 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 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