Welders are always looking for time and cost savings when pipes need to be purged of oxygen before, during and after welding (weld purged). Weld purging large diameter pipework fabrications and pipelines not only carries a large price tag when it comes to time, it can also cost a lot in inert gas.
Weld purging specialists and developers Huntingdon Fusion Techniques HFT® manufacture QuickPurge® Tube, Pipe and Pipeline Weld Purging Systems. QuickPurge® Systems are designed to be inflated inside of the pipe, drastically restricting the volume that needs to be purged, so much so that the Systems pay for themselves in just one or two welds.
A customer in the USA said: "What an enormous saving in waiting time for our welders. Normally we wait several hours for our 30" stainless steel pipe joints to be purged and now we can start welding in under 10 minutes."
QuickPurge® Systems are available in sizes 6 to 88” (152 to 2235 mm) and are used in many industries such as refineries for nickel alloys, mining operations for titanium, nuclear power stations for stainless steel and the oil and gas industry for all high quality pipe joints. Using scientific innovations, QuickPurge® can help welders achieve consistent oxygen levels as low as 10 parts per million (ppm), allowing zero colour welds to be achieved with no loss of corrosion resistance caused by oxidation.
IntaCal® combined with the integrated PurgeGate® device makes it possible to safely inflate the systems with argon gas, for sealing and then purging the space between the dams where the weld joint is located. With PurgeGate®, any risk of over-inflation due to pressure or flow increase is eliminated.
All systems are manufactured as standard with a hose for connecting a Weld Purge Monitor®, which can read oxygen levels down to as low as 10 ppm.
Specially designed QuickPurge® Systems with longer sleeves are also available for pipework with 90º bends.
Read the article online at: https://www.worldpipelines.com/product-news/31052018/cut-costs-not-corners-with-quickpurge/