WEB Catalog

Product Information »  WEB Catalog  » Switches/Sensors/Controller  » Electronic Flow Switches/Sensors

Electronic Flow Switches/Sensors

2-Color Display Digital Flow Switch PFMB

    ・Dry air, N2
    ・Integrated flow adjustment valve
    ・Compact, Space saving

    ∗ The PFMB7201 series was discontinued in September 2021.
     Please select the PF2M721 series.
  • 2D/3D CAD

    The new SMC CAD SYSTEM, CADENAS, allows you to output 2D/3D CAD data with full part numbers in various data formats. Responses to part number selection has been greatly improved with the newly developed system.

    Click here for 2D/3D CAD
  • 2-Color Display Digital Flow Switch PFMB
    Series View search result
    PFMBView search result
  • 2-Color Display Digital Flow Switch PFMB
    Series View search result
    PFMBView search result
SeriesRated flow range (L/min)
PFMB2 to 200
5 to 500
10 to 1000
20 to 2000


Expanded flow range!

Wide range of flow measurement.
Flow ratio*100:1

* Rated flow ratio is 10 : 1 for the current PF2A.

Smallest settable increment: 1 L/min

Current PF2A: 5 L/min (200 L: 2 L/min)

Compact, Space saving

Flow adjustment valve is integrated.

Response time

Can be selected from 50 ms (0.05 s)/ 0.1s/0.5 s/1.0 s/2.0 s
Response time can be set depending on application.


3-Screen Display Digital Flow Monitor New

Allows for the Monitoring of Remote Lines

Piping variations (200 L type)

Reversed display mode


When the switch is used upside down, the orientation of the display can be rotated to make it easier to read.

Bypass structure

Bypass structure with protruding part at the main piping, reduces the contact of moist air with the sensor, reducing degradation of the sensor and maintaining accuracy.

Digital flow switch to save energy!

Flow control is necessary for promoting energy saving in any application.
Saving energy starts from numerical control of the flow consumption of equipment and lines and clarification of the purpose and effect.

Digital display allows visualization of flow rate.
2-color display, Improved visibility

Remote control is possible with accumulated pulse.



Example of recommended pneumatic circuit

Air quality in the product specification can be satisfied by using this pneumatic circuit.

Flow Switch Variations

Flow Switch Flow Rate Variations

Flow Switch Variations / Basic Performance Table

Go Top