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Benefits of replacing manual valves with mass flow controllers

According to lean principles, one of the largest forms of waste in a production plant comes from variance. Finding efficient ways to be consistent in your process is not always easy. Many times users are not aware that solutions exist to help control consistency.

According to lean principles, one of the largest forms of waste in a production plant comes from variance. Finding efficient ways to be consistent in your process is not always easy. Many times users are not aware that solutions exist to help control consistency.

One of the best ways to reduce variance between different operators is to switch out the manual control valves for automated mass flow controllers.  A mass flow controllers produces repeatable results by automatically adjusting demand when line pressure changes due to other processes happening upstream from your device. The outcome is repeatable results with documented process information. A built-in totalizer stores the total gas consumption value and can serve to better estimate production costs.

Burkert mass flow controllers are maintenance-free, compact devices that have the ability to offer diagnostics data through digital communications protocols like Ethernet IP.

With the free Burkert Communicator software, diagnosing, controlling and monitoring your devices can be easily done through any PC or laptop. The Burkert Communicator software even allows customers verify and adjust their calibration with the use of an integrated recalibration wizard. 

How does a mass flow controller work?

All Mass Flow Controllers from Bürkert are compact devices that control the mass flow of gases. They control a preset flow rate reference value – regardless of disturbance variables such as pressure fluctuations or temporary occurring flow resistances, e.g. as a result of filter dirt.

MFCs consist of the following components: flow sensor, electronics and a solenoid control valve as an actuator. The reference value setting is made electrically via analogue signal or fieldbus. The actual value measured by the sensor is compared in the controller with the reference value. The controller gives a pulse width modulated voltage signal to the actuator as a correcting variable and varies it according to the registered control deviation. The actual value is also transmitted externally via an analogue signal or fieldbus. It is therefore provided to the user for controlling and analyzing.

With its easy installation, the compact structure of the Mass Flow Controller ensures the convenient operation of a complete (closed) control loop. Additional work and costs, e. g. wiring and harmonizing individual components, incorporating pipe lengths (inlet/outlet pipe for flow conditioning), are ruled out.

Type 8741

Mass Flow Controller (MFC)/ Mass Flow Meter (MFM) for Gases

Type 8741
  • Nominal flow ranges from 0.010 l/min to 160 l/min
  • High accuracy and repeatability
  • Very fast response times
  • Easy device exchange through configuration memory
  • Optional: USP Class VI, FDA, EG 1935 conformity

Type 8742

Mass Flow Controller (MFC)/ Mass Flow Meter (MFM) for gases

Type 8742
  • Nominal flow ranges from 0.010 l/min to 160 l/min
  • Highest measuring accuracy and repeatability with very fast response times
  • Long-term stability of the flow calibration
  • Easy device exchange due to configuration memory
  • Optional: ATEX II Cat. 3G/D or USP Class VI, FDA, EG 1935 conformity

Type 8745

Mass Flow Controller (MFC)/ Mass Flow Meter (MFM) for gases

Type 8745
  • Nominal flow ranges from 20 l/min up to 2500 l/min
  • High accuracy and repeatability
  • Communication via standard signals or Industrial Ethernet
  • Electromagnetic and motor-driven valve actuation available
  • Easy device exchange through configuration memory

Type 8746

Mass flow controller (MFC) / Mass flow meter (MFM) for gases

Type 8746
  • Nominal flow ranges from 20 l/min up to 2500 l/min
  • High measuring accuracy and repeatability with very fast response times
  • Long-term stability of the flow calibration
  • Simpler device exchange due to configuration memory
  • Optional: ATEX II Cat. 3G/D or USP Class VI, FDA, EC 1935 conformity

Type 8756

Mass flow controller (MFC)/ Mass flow meter (MFM) for liquids

Type 8756
  • Flow measurement / control up to 25 kg/h
  • Very high accuracy and measuring range
  • High long-term stability, no zero-point adjustment necessary
  • Hochbeständige mediumsberührte Materialien
  • Suitable for numerous liquids

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