HiLo measurement

Our Open Gap and Closed Gap HiLo tools measure internal and external pipe geometry to a high degree of accuracy, leading to higher quality welds and stronger pipelines. Ideal for critical fatigue-sensitive pipeline sections such as steel catenary risers, these tools been used around the world by all major pipe-lay companies and welders. Our team are available at any time to discuss your requirements - contact them.

Key features:

  • Reduce HiLo

  • Measurements accurate to +0.05mm

  • Ensure design specifications are met

  • Easy to use with magnetic base and calibration/verification stand

  • Traceable measurements

  • Range of blades available to suit requirements

  • Further customisation is available on request

Measuring HiLo just before welding confirms the best fit-up selections for critical fatigue-sensitive pipes and reduces the chance of expensive weld-related cut outs
— Paul Eagle, Sales Director

Better pipe fit-up

Created in response to customer request, OMS HiLo tools measure the pipe geometry of two pipes aligned for welding to a high degree of accuracy. OMS sales director, Paul Eagle, writes about what HiLo measurement is and why it is important.

Final check before welding

To achieve a good weld and avoid stress concentration pipes must be matched as accurately as possible. In critical fatigue sensitive pipes the HiLo measurement confirms fit-up predictions from the OMS SmartFit process and provides the last check before pipes are welded. Post-weld, pipes may be checked again with OMS weld inspection technology.

Simple pipe inspection

Our HiLo toosl use standard digital gauges, are simple to operate and will be familiar to pipe inspectors. All OMS tools are sent out calibrated and we provide a yearly calibration and repair service.


OMS blog