News

Pipe Welding becomes Easier

06W-InflatableWeldPurgeDamsNew devices for welding stainless, duplex, chrome steels and titanium are launched by Huntingdon Fusion Techniques HFT®.

Typically for closure welds, tight bends, T piece joints and dome end connections where a conventional Tandem Weld Purging System cannot be used, a range of low cost, single ended Inflatable Weld Purge Dams is available for pipe diameters from 6 to 96 inches (150 mm up to 2,440 mm).

These lightweight systems are easy to inflate and are heat resistant up to 90oC (194oF).

Ron Sewell, Chairman at Huntingdon Fusion Techniques HFT® said: “Even today, many companies are still allowing their technicians to spend many hours fabricating dams made of foam, cardboard, adhesive tape, wood and so on. Like paper, these materials contain a high percentage of water, which is very undesirable to have in the presence of a weld.

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Extended Inert Gas Coverage during Titanium and Stainless Steel Welding

48W-WeldTrailingShieldsTo avoid metallurgical defects, to remove oxidation and discolouration and to save expensive cleaning costs on titanium and stainless steel tubes, pipes and sheet metal welding, Argweld® Trailing Shields® are available.

Manufactured by Huntingdon Fusion Techniques HFT®, Trailing Shields® provide additional inert gas coverage during welding, to avoid metallurgical defects, to prevent oxidation and to give bright, oxide free, zero colour welds.

These reusable Trailing Shields® are suitable for any diameter of tube, pipe, tank or vessel from 1” upwards and for flat sheet metal. They are lightweight and simply attach to all standard manual or automatic TIG/GTAW and Plasma/PAW welding torches.

Luke Keane, Distributor Support for HFT® said: “Once they are connected to the welding torch, our Trailing Shields® are easily connected to the argon gas supply.

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Inflatable Stoppers for Pipe Plugging and Blocking

11W-RubberInflatablePipePlugsReducing volume in pipes or tanks for weld purging, for blocking pipe ends or open orifices in systems in order to conduct routine maintenance or perhaps even to prevent the entry of foreign bodies into pipes or vessels can be much easier with an Inflatable Pipestopper®.

A range of standard and non-standard Inflatable Stoppers for tanks, chambers, tubes, pipes, pipework fabrications and ductwork is available from the Pipestoppers® Division of Huntingdon Fusion Techniques HFT®.

Ron Sewell, Chairman for HFT® said: “These versatile Inflatable Stoppers are used to service a wide variety of industrial applications. As “overnight stoppers” they provide a strong barrier in pipeline activities, to prevent foreign bodies entering the line during downtime.

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Measure your Argon for the best Weld Quality

07W-PurgEye100-IP65-WeldPurgeMonitorWeld Purge Monitors® are essential instruments, usually needed to help achieve non-oxidised, zero colour welds when welding metals such as stainless, chrome and duplex steels as well as titanium and nickel alloys.

Few welding personnel realise however that they can use their Weld Purge Monitors® to measure the quality of the argon gas being used during weld purging.

A low cost PurgEye® 100 Weld Purge Monitor® available from World Leading Weld Purging Experts Huntingdon Fusion Techniques HFT® can quickly ensure the quality of the argon gas being used by measuring from atmospheric level (20.94%), down to as low as 100 parts per million (ppm).

A customer recently said: “More and more in our experience we are finding inferior argon that isn’t what it says on the bottle. Often, customers blame other equipment such as their purging systems or monitors for getting bad heat tint, when in actual fact it could well be their source gas quality.

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Weld Purge your Pipes at a low cost with Weld Purge Film®

02W-SolubleWeldPurgeFilmWhen tubes and pipes of certain materials, such as stainless steel, titanium, nickel alloys and zirconium are welded together, it is desirable to purge the oxygen out of the inside of the weld zone to prevent it from reacting with the hot metal and causing oxidation, porosity and corrosion.

Some weld purging products available include Inflatable Systems (balloons), tandem units made of rubber discs and even double ended systems made of wood, foam and other unsuitable materials. Such dual ended systems require an open end to retrieve the system after the weld is finished and therefore, are not suitable for closing welds.

To overcome this limitation, Huntingdon Fusion Techniques HFT® has developed and manufactured Argweld® Weld Purge Film® kits, with water-soluble materials that can be used for open assemblies and closing welds.

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Dramatically reduce Weld Purging times with QuickPurge®

Quick Purge Pipe Weld Purge SystemTime after time, welders, supervisors, quality control personnel and others are kept waiting, sometimes for many hours, for stainless steel or titanium pipes to be purged of oxygen ready for welding.

In addition, all involved are watching the expensive inert argon gas flow away to waste after it has passed through the pipe, gathering oxygen and other harmful gases along the way.

Such time loss and material waste can be avoided now because of the innovative QuickPurge® Tube, Pipe and Pipeline Weld Purging Systems designed and manufactured by leading weld purging specialists Huntingdon Fusion Techniques HFT®.

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Switch to MultiStrike® for an improved Tungsten Electrode performance

06W MultiStrikesTungstenElectrodesTungsten Electrodes are used when arc welding with the Tungsten Inert Gas (TIG) process or Plasma welding. It is necessary to grind tungsten electrodes after they have touched the molten weld pool or the filler rod to the tungsten, which is not only time consuming but can be a hazard to health.

Recognising both the performance requirement and the risk to health posed by thoriated tungsten electrodes, Huntingdon Fusion Techniques HFT®’s MultiStrike® Tungsten Electrodes not only deliver an increased performance, they also reduce the risk to health.

A customer in Cheshire, UK recently said: "The introduction of MultiStrike® has been welcomed by all our welding staff. The new electrodes are giving excellent results and demonstrating much improved strike characteristics. Although more expensive than the previous electrodes, their life is significantly longer which is expected to lead to long-term cost savings. We are also aware of the health and safety benefits of using non-thoriated electrodes."

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Flexible Welding Enclosures® for Zero Colour Titanium Welds

31W-FlexibleWeldingEnclosuresWhen welding titanium, zirconium and some stainless steel joints it is important that the welding zone is purged of oxygen to a level as low as 10 parts per million (ppm).

Flexible Welding Enclosures® are available from Huntingdon Fusion Techniques HFT® for a fraction of the cost of a rigid welding chamber. Flexible Welding Enclosures® provide a solution where a rigid chamber may not be economically viable or where space may be at a premium.

Ron Sewell, Chairman for HFT® said: “In his workshop in Santa Rosa, California, retired CEO Bob Lee is recreating a famous Can-Am racecar, the Ti22 that was destroyed in 1973. This car was the first Monocoque road racecar to make extensive use of titanium. With over 40 years of experience of welding titanium, Huntingdon Fusion Techniques HFT® have become very involved in this project, providing equipment and technical assistance where required.

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QuickPurge® and PurgEye® 100 Demonstration

Take a look at how quick and easy it is to weld purge your pipes down to 100 ppm using our QuickPurge® Tube, Pipe and Pipeline Weld Purging System and innovate PurgEye® 100 Weld Purge Monitor®.

The PurgEye® 100 is self calibrating to atmospheric level (20.94%) and when connected to the QuickPurge®, reads accurately down to 100 ppm in just one minute.

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Weld Purge your Pipes the “Elite” Way

23W-PurgEliteWeldPurgeSystemsWhen welding stainless, duplex, chrome steel and titanium tubes and pipes, it is important to purge the welding zone with an inert gas to prevent corrosion, oxidation, discolouration and to ensure a good internal weld profile with no metallurgical defects.

After 40 years of innovation, design and manufacturing expertise in the field of tube and pipe weld purging, Huntingdon Fusion Techniques HFT® has introduced PurgElite®, a range of low cost Tube and Pipe Purging Systems to achieve a clean, oxide free, zero colour weld.

Georgia Gascoyne, CEO for HFT® said: “We recently had a customer who was wasting a lot of money in time and argon gas costs by filling entire pipework fabrications with argon in order to weld the stainless steel pipes in an inert environment. There were several 90º bends in the pipework, so the customer thought filling the whole pipework system was the only option.

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Monitor your Weld Purge at a Low Cost

57W-PurgEye100-IP65-WeldPurgeMonitorWeld Purge Monitors® are essential instruments to help obtain non-oxidised, zero colour welds. By measuring the oxygen content before, during and after welding, high quality welds are achieved when welding metals such as stainless, chrome and duplex steels as well as titanium and nickel alloys.

Advancing in the science of manufacturing beyond other designs, Huntingdon Fusion Techniques HFT®’s market leading PurgEye® 100 can help to eliminate the significant post weld cleaning costs that occur when the oxygen level has not been monitored correctly during welding.

Ron Sewell, Chairman for HFT® said: “We recently had a European Gas Turbine Manufacturer who was spending a lot of time and money cleaning oxidised stainless steel welds. They were using an unsuitable means to guess the reduction of oxygen.

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Pipe Plugging and Stopping Best Practices LinkedIn Group

11W-RubberInflatablePipePlugsOur Pipestoppers® Division here at Huntingdon Fusion Techniques HFT® has a vast amount of expertise in the field of pipe plugging and stopping to support our wide range of pipe plugs and stoppers for a variety of applications.

Join our Pipe Plugging and Stopping Best Practices LinkedIn Group for advice, guidance and recommendations for good pipe stopping, including leak testing, sealing, isolation, stopping, freezing and weld purging.

Industries include: plumbing, construction, water, telecommunications, shipping and oil and gas.

The Pipestoppers® Division comprises Nylon, Aluminium, Steel and Inflatable Stoppers and Pipe Freezing Systems.

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