FS-10798(E) – EXi Intrinsically Safe ATEX Flow Switch

ATEX intrinsically safe version of the standard FS-10798 flow switch.

This externally adjustable ATEX flow switch is ideal for protecting machine tools from coolant flow failure, for protecting bearings from loss of lubricant or to assure proper air flow. They offer an infinite number of flow settings at pressures up to 1000 psig (69 bar), with low pressure drop and precise repeatability.

The adjusting vane is easily field adjustable using an ordinary flat-bladed screwdriver. The adjustment is set-screw-locked for tamper-free operation after field calibration.


  • Electronic Equipment: Laser Heads, Welders, Power Supplies, High Speed Spindles, X-Ray Tubes, Semiconductor Equipment
  • Bearings or Gears: Presses, Rotating Equipment, Conveyors, Machine Tools, Robotics  Processing & Dispensing Equipment: Water Purifications and Filtering, X-Ray Film
  • Processing, Beverage Dispensing, Chemical Additives, Gas Sampling, Distilling


When the magnetic field of permanent magnet inside the shuttle or piston is moved into the proximity of the reed switch inside the stationary stem, the reed switch contacts “snap” together and closes the electrical circuit. When the magnetic field is moved away from the reed switch, the reed switch contacts move apart and the circuit is opened.

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Max flow
Max operating pressure
Operating temperature
-20° to 150°C
Adjustable ranges
Mounting orientation
Any position
Mounting orientation
IP 65
Brass or Stainless Steel