Flow Management Devices

Improving Liquid and Gas Measurement Technology


4th Generation Proving Technology Now Available

Flow MD, the world class leader in Small Volume Prover Technology, raises the bar in prover design with the 4th Generation Unidirectional Captive Displacement Prover

• Decreased overall weight and redesigned piston and poppet assembly allows for minimal flow disturbance

• Increased run-up time provides better accuracy for proving manufactured pulse meters

• All stainless steel drive system

• 4th Gen PIM with upgraded features

Flow MD continues to set the standard in small volume prover design with seven existing patents and two
additional pending.

Click here to download complete brochure

Welcome to FlowMD

Our Mission is Simple: “The Pursuit of Improving Liquid and Gas Measurement Technology.”

Flow MD was founded on the simple concept that we can do it better. On day one, our engineering and operations team focused on creating the Next Generation of Unidirectional Captive Displacement Provers.

Our Provers incorporate state-of-the-art design technologies to provide our customers a superior designed, safe and easy to operate prover. With an innovative and patented drive end, we have raised the bar in Prover design.

Flow MD’s Uni-Directional Captive Displacement Provers are ideal for:

  • Portable or stationary mounts
  • Truck, Train or Offshore load racks
  • Test or calibration labs
  • Pipelines
  • Refineries
  • Cryogenic applications
  • Chemical processing

As a company we believe our customers are vital to our continued success and we strive for Customer Service excellence by continually and relentlessly improving all aspects of our business.

Request Additional Information



FMD to present at ASGMT in September

Flow Management Devices will be exhibiting and presenting at the upcoming American School of Gas Measurement Technology(ASGMT). Greg Williams will be ...

Read more

Stay up-to-date with the latest oil prices