Low Pressure Drop Whisper Series Mass Flow Devices

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Whisper Series Meters and Controllers


Ideal for controlling mass and volumetric flow rates when there is little available system pressure. Low pressure drop minimizes system impact, enabling flow control at near-atmospheric pressures and shortening system response times. We’ll use your application parameters to customize your valve and PID tuning to ensure that it delivers fast and stable control while maintaining low pressure drop.

  • Versatile. Control pressure (MCW) while monitoring flow rates, select another gas calibration on the fly or define your own gas composition with COMPOSER™.
  • Connected. Easy integration into your digital industrial network with EtherNet/IP, EtherCAT, DeviceNet, Profibus, Modbus (RTU and TCP/IP) or serial communications options.
  • Durable. Backed by annual recalibrations and our limited lifetime warranty, an Alicat instrument will keep your process running smoothly, even in challenging environments, for years to come.
  • Portable. Whisper series (MWB) flow meters with low pressure drop are the perfect calibration instruments for mass and volumetric flow rates. 


Portable Low Pressure Drop Mass Flow Meters, available to buy online.

 Contact us for a quote.