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Grainger Gems Sensors RFS-2500 Series Liquid Flow Switch, Polypropylene, 1/4 in. FNPT, 0.5 to 5.0 GPM, 1 ea

Catalog No. 502794205
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The RotorFlow® RFS-2500 Series liquid flow switch combines visual flow monitoring with dynamic electronic switch operation to protect equipment against coolant flow failure. By monitoring rotor motion, the unit ensures accurate flow indication and triggers a no-flow condition if the rotor stops. Features a hydrolytically stable polypropylene body with 1/4 in. FNPT ports for semiconductor processing, lasers, medical equipment, and robotic welding.

  • Flow range: 0.1 to 1.0 GPM (low flow adapter) or 0.5 to 5.0 GPM (standard)
  • Adjustable switch point calibration with local LED signaling
  • Electrical output: SPDT, 20 mA at 24 VDC
  • Housing material: Polypropylene
  • Operating temperature range: -29°C to 82°C (-20°F to 180°F)
  • Pressure rating: 100 PSIG (6.9 bar to 13.8 bar)
  • Repeatability: 2% maximum deviation
  • Includes 24 in. 22 AWG PVC-jacketed cable

Catalog No. 50-279-4205 Supplier Grainger Supplier No. 1AMB2
May include imposed supplier surcharges.
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The RotorFlow® RFS-2500 Series liquid flow switch combines visual flow monitoring with dynamic electronic switch operation to protect equipment against coolant flow failure. By monitoring rotor motion, the unit ensures accurate flow indication and triggers a no-flow condition if the rotor stops. Features a hydrolytically stable polypropylene body with 1/4 in. FNPT ports for semiconductor processing, lasers, medical equipment, and robotic welding.

  • Flow range: 0.1 to 1.0 GPM (low flow adapter) or 0.5 to 5.0 GPM (standard)
  • Adjustable switch point calibration with local LED signaling
  • Electrical output: SPDT, 20 mA at 24 VDC
  • Housing material: Polypropylene
  • Operating temperature range: -29°C to 82°C (-20°F to 180°F)
  • Pressure rating: 100 PSIG (6.9 bar to 13.8 bar)
  • Repeatability: 2% maximum deviation
  • Includes 24 in. 22 AWG PVC-jacketed cable

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