Skip to main content

+49 (0) 6035-949-0


Flow switches with optical display

for liquids from 30 up to 600 cSt


With the BFS-20-O, you have the solution for precise oil flow measurements at your disposal. This flow switch has been specifically designed to meet your technical requirements and impresses with its technical features.

The BFS-20-O offers an extensive measuring range from 0.1 ... 0.8 l/min to 30.0 ... 90.0 l/min. The BFS-20-OL covers a measuring range from 0.5 ... 1.7 l/min to 2.5 ... 8.0 l/min only available with 1/2" connection. Both versions are ideal for liquids with a viscosity range of 30 to 600 cSt.

Operating at pressures up to 16 bar and temperatures up to +160 °C, the BFS-20-O effortlessly handles demanding conditions.

The BFS-20-O features an optical display that provides a clear indication of the measured values. The set point is continuously adjustable.

The rugged design of the BFS-20-O ensures a long lifespan, and its low hysteresis ensures precise and reliable results when measuring oil flow.

  • Viscosity compensated from 30 to 600 cST
  • Set point continuously adjustable
  • Low hysteresis
  • Rugged design

Measuring and monitoring of liquids, e. g. in

  • Cooling systems
  • Hydraulic systems
  • Test beds
  • Pumps