Experts from Huntingdon Fusion Techniques (HFT®), have designed and manufactured a range of low-cost tube and pipe purging systems that will allow welders to achieve a clean, oxide-free, zero-colour weld in just minutes.
To save welders the expense of completely filling tubes and pipes with an inert gas, PurgElite® Systems are available, said Ron Sewell, chairman for HFT®. They inflate and seal in the pipe, restricting the volume that is needed to be purged. This not only saves welders time waiting for pipes to be purged, but also inert gas costs.
The systems have been manufactured to suit pipe diameters from 25 to 600 mm, and each one is made with a Weld Purge Monitor® connection.
The spinal tube, made from low, outgassing rate material, is resistant to hot metal up to 300°C, and is flexible, allowing movement of the PurgElite® Systems around 180° bends if necessary.
Each PurgElite® features IntaCal®, a purge gas feed device, which means there is no complicated valve to adjust and set. It also comes with a centrepiece glow positioning indicator, RootGlo®, which comes as a standard to ensure the system can be positioned accurately inside the tube or pipe.
Image courtesy of Huntingdon Fusion Techniques®