Flow Loop

A highly flexible pipework configuration for your closed pipe flow testing needs at our Swindon site.

Andy Godley is the expert at our Evaluation & Testing Facilities

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Flow loop

The WRc flow loop is used for development and testing work on closed pipe flow meters (in-line, insertation and clamp-on), water mains operations, cleaning and inspection systems. 

It incorporates several different pipe materials in a mixture of buried and above ground sections. The loop can accommodate bespoke testing of any pipework and fittings up to DN300. 

A series of traceable instruments accurately record flow rates and other parameters during testing. An integral system allows reference measurements to be recorded in conjunction with test equipment - making data capture and storage quick, reliable and easy. 

Technical details:

  • Location - mostly outside with buried and above ground sections.
  • Flow rates of up to 120 l/s.
  • Above ground straight runs of over 40m.
  • Variety of pipework up to 300mm.
  • Flexibility to change above ground sections to suit testing requirements.
  • Traceable logging functionality, including temperature, pressure and flow instrumentation.
  • Ample surrounding space, allowing test lines to be extensively configured to accommodate bespoke testing.

Hire and support:

We have a range of flexible options to suit all requirements:

  • Rig hire with initial training and induction,
  • Rig hire with WRc technician support,
  • Full testing provision from experienced WRc staff.


    Recently used by:

    • A large manufacturer as part of a training course on clamp-on water meters held at WRc to improve meter installation.
    • A UK water company to prove flow rates from air bleed valves.
    • A leading university to test a prototype valve during the development process.


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    Andy Godley

    Andy's expertise covers all technologies of flow measurement (both open channel and closed pipe) across clean and wastewater applications. He manages WRc's flow test facilities and has experience in designing and performing test and evaluation exercises against standards or client-specific requirements on meters and associated equipment, including verification and AMR (automatic meter reading) systems. Andy has also developed tools for assessing meter uncertainty, whole life costs of meters, meter right sizing and long term meter performance models. He has been closely involved with the Environment Agency’s MCERTS scheme for water monitoring.