Global Weld Purging Experts Huntingdon Fusion Techniques HFT® have unveiled their updated PurgEye® 100, with new features that place this monitor at the forefront of Weld Purge Monitoring.
Weld Purging requires the removal of oxygen and it is important that welders know exactly when it is safe to start welding to ensure welds remain free from oxidation. This state-of-the-art Weld Purge Monitor® accurately reads down to 100ppm, suitable for welding stainless steel.
Technical Sales Manager Luke Keane said: “We are very excited to be launching our new PurgEye® 100. Guesswork is eliminated with the monitor and welders can know exactly what the oxygen content is before, during and after welding.”
The hand held PurgEye® 100 now features a metal housing, which has been upgraded from a plastic one. Readings are from atmospheric oxygen level (20.94%), right down to 100 ppm (0.01%) of oxygen.
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Transmission of fluids in pipework play a crucial role throughout the manufacturing industry, meaning any interruptions can be expensive. They can lead to lost production if sections of pipe need to be restored or if control gear such as valves and monitoring equipment have to be replaced. Often these requirements involve closing the entire pipe system and draining off and safely disposing of fluids.
The concept of freezing the fluid either side of a section of pipe for repairs or replacement of control gear is in widespread use in domestic and commercial plumbing but this is limited to 50 mm (2”) diameter tubes.
More recently techniques involving the use of liquid carbon dioxide or nitrogen have now extended the potential to pipes up to 300 mm (12”) diameter and beyond.
Fig 1. Liquid carbon dioxide (CO2) being used to freeze pipe contents either side of a valve prior to valve removal and replacement.
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Indutrade UK have recently announced the acquisition of Huntingdon Fusion Techniques HFT®.
HFT® will become part of the ALH Systems Group and will continue to operate from our facilities in Burry Port, Carmarthenshire.
There will be no change to our day to day operation and will continue to sell our products through our Worldwide Exclusive Network of Distributors.
ALH Systems Group Manging Director, David Lyes said, “We are delighted to welcome HFT to our Group and we look forward to working with Luke Keane and the wider HFT teams as they expand their product range and international sales footprint”.
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It is becoming ever more important to act sustainably to achieve efficient manufacturing during the welding process. There are many factors that have an impact on sustainability where the welding process is concerned.
Reliable welding equipment
Weld Purge Monitors® are an essential instrument to help obtain non-oxidised, zero colour welds by monitoring the oxygen levels when welding sensitive materials such as titanium, zirconium, nickel, stainless steels and low alloy steels containing chromium. Oxidation can lead to loss of corrosion resistance and a decrease in mechanical strength.
Many decades of design and expertise has gone into developing the PurgEye® range of Weld Purge Monitors®. These extremely reliable monitors can measure residual oxygen content as low as 1ppm (0.0001%).
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Inerter les zones à souder sur des tubulures de diamètres variés peut s’avérer complexe et coûteux, en particulier si l’on doit emplir l’ensemble de la tubulure d’argon assez cher. Une solution courante chez les soudeurs est de faire des « barrages-maison », à base de mousse ou de papier, qu’on place d’un côté ou de l’autre de la soudure, réduisant ainsi le volume à inerter pour raccourcir la durée d’inertage.
Ces « barrages-maison » en mousse ou en papier ont de sévères limitations techniques, et ils peuvent entraîner la perte de soudures quand ils fuient, ou se déplacent, ce qui ramène de grandes quantités d’oxygène vers la soudure en cours d’élaboration.
Pour surmonter ces difficultés, les Weld Purge Film® ont été conçus et développés. Ils sont disponibles auprès de France Inertage®, et permettent de rendre l’inertage abordable et efficace.
France Inertage® le dit : « Utiliser les kits Weld Purge Film® permet aux soudeurs d’économiser temps et argent, tout en leur permettant de réaliser des soudures exemptes d’oxydation à chaque opération.
Ces films Weld Purge Film® sont solubles dans l’eau. Ils sont faciles à couper aux dimensions exactes avec le couteau de sécurité fourni. Une fois mis en place, grâce à l’adhésif soluble dans l’eau Weld Purge Super Adhesive®, ils deviennent une barrière d’inertage infranchissable, qu’on peut ensuite facilement éliminer durant l’essai hydrostatique de la tubulure, ou simplement par rinçage à l’eau ».
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