Digital Flow Switch

Digital Display and Output Signals to Monitor Flow

PFMB - Digital Flow Switch
Series Catalog (PDF)
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Series PFMB

A digital flow switch monitors and displays instantaneous and accumulated flow, and transmits output signals when critical set points are detected.  Switch outputs can trigger machine controls to continue or stop operation, indicate an emergency condition, or signal a maintenance requirement.  A comprehensive set of functions is available in a compact, space-saving package.

  • Suitable fluids include air or nitrogen
  • A flow ratio of 100:1 with maximum values of 200, 500, or 1000 L/min
  • 2 switch outputs available, or 1 switch output along with an analog current or voltage output
  • CE, UL/CSA (200L type only), RoHS compliance
  • Optimize response time with 1 of 5 settings from 0.05 to 2.0 seconds
  • Protect settings with key lock and password code security functions



PFMB7201-C8-A-M PFMB7201S-02L-A-M_Flow_Control PFMB7501-04-A-M


  • 200 L/min
  • Shown with straight piping
  • Shown with one-touch fittings


  • 200 L/min
  • Shown with bottom piping
  • Shown with female threads
  • Shown with integrated flow adjustment valve

PFMB7102 / PFMB7501

  • 500 and 1000 L/min


PFMB7102Two-Colors PFMB7201ReverseDisplay

Informative Color Display:

  • 3-1/2 digit, 7-segment LED or LCD
  • Red, green, or combination
  • Alphanumeric for flow values and settings
  • Raised rubber buttons for ease, comfort

Reversible Display:

  • Orientation of the display can be rotated
  • Suitable for when the switch is mounted upside down
  • Improves readability




PFMV530F-1 PFM710-C4-A-M PF2A706H-14-28


  • -3 to 3 L/min flow rates
  • 6 models


  • 0.2 to 100 L/min
  • 4 models


  • 1 to 12,000 L/min
  • 8 models


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