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LIQUI-FLOW™ series L10 / L20
digital Liquid Mass Flow Meters / Controllers

General

LIQUI-FLOW™ Series L10/L20 are digital Liquid Flow Meters/Controllers for low flow ranges. The instruments operate on a thermal, thru-flow measuring principle. The flow meter can be connected to a control valve to form a closed control loop.

Lowest range 0,25 ... 5 g/h
Highest range 20 ... 1000 g/h for fluids with thermal properties similar to H2O

Note:
For ultra low flow ranges, Bronkhorst offers the µ-FLOW series.
Ranges: 1,5 ... 30 mg/h up to 0,1 ... 2 g/h IPA- or H2O-equivalent.

Liquid Flow Controllers

Flow control is achieved by integrating a control valve onto the body of the Liquid Flow Meter. This control valve has a purge connection to eliminate air or gas during start-up. The electronic control function forms part of the normal circuitry in the meter.

  • Features
  • Applications
  • Capacities
  • Documentation

Features

  • Fast and accurate measurement
  • No moving parts
  • Thru-Flow measurement
  • Suitable for liquids with low boiling point
  • Attitude insensitive
  • Very small internal volume
  • In combination with a control valve: continuous and stable control
  • Analog or digital: RS232, PROFIBUS DP, EtherCAT®, DeviceNet™ or Modbus

Applications

  • Semiconductor industry
  • Pharmaceutical industry
  • Food industry (flavors, additives)
  • Biotechnical industry
  • Analytical laboratories
  • HPLC-applications

Flow capacities (based on IPA or H2O equivalent)

Liquid Flow Meter Ranges
Series L13 min.   0,25 ... 5 g/h
max.  5 ... 100 g/h
Series L23 min.   2 ... 100 g/h
max.  20 ... 1000 g/h
Liquid Flow Controller Ranges 
Series L13V12 min.   0,25 ... 5 g/h
max.  5 ... 100 g/h
Series L23V12 min.   2 ... 100 g/h
max.  20 ... 1000 g/h

Leaflet

For more information see leaflet "LIQUI-FLOW series L10/L20"

Liquid Flow Meter Liquid Flow Controller
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