Article | March 26, 2014

A New Breakthrough In Flow Metering


By Mark Gimson

Municipalities that are looking to accurately measure their water flow rates often fall into one of three categories:

  1. They want a flow control valve that has the ability to vary flow rates over time but would rather not to have to install a flowmeter, a valve with an actuator and positioner.
  2. When filling a reservoir they would like to know how many gallons have been used.
  3. They would like to install a conventional flowmeter in their control valve station but don’t have the space.

The common choice in the municipal world to date has been the electcro-magnetic flowmeter due to cost, reliability, turndown etc.  Unfortunately they require straight runs upstream and downstream prior to the meter – typically 5 pipe diameters upstream and 2 diameters downstream to give reasonable accuracy. There are other technologies but they also require straight runs and in many cases even more than the magnetic flowmeter.

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