Purge your tube and pipe welds the 'Elite' way
Using real scientific breakthrough technology, Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging Systems introduces to the market place for the first time a 'New' 1 inch (25 mm) System for small diameter tubes and pipes. Another great innovation to help tube and pipe welders save time, money, gas and achieve better welds. The volume to purge is kept small, resulting in savings in both time and cost of inert gas used. Suitable for high quality pristine tube and pipe weld purging, 1 to 12" (25 to 300 mm) diameters. For full technical information......, use the tabs above.
'NEW' Argweld® PurgElite® Tandem Dam based Tube and Pipe Weld Purging Systems for Pipework Sizes 1 to 12 inch (25 to 300 mm)
After more than 35 years of manufacturing expertise in the field of tube and pipe purging dams, Huntingdon Fusion Techniques brings to the market yet another great innovation to help tube and pipe welders save time, money, gas and achieve better welds.
This 5th Generation Innovative Advanced Design in the Argweld® range introduces for the first time a 'New' Size 1 inch (25 mm) System for small diameter tubes and pipes!
The Argweld® PurgElite® systems are suitable for high quality pristine weld purging of of tubes to tubes or fittings and pipes to pipes and fittings for 1 to 12" (25 to 300 mm) diameters.
These even more advanced systems, with many unique features keep Huntingdon Fusion Techniques right at the forefront of technical innovation, by creating a simple, low cost solution to make high purity welds.
With the significant savings made due to this revolutionary new design, we have been able to reduce prices significantly whilst at the same time, manufacturing a technically superior product.
The volume to purge is kept small, resulting in savings in both time and cost of inert gas used.
Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging Systems have two heavily protected inflatable dams connected by a new design inert gas purging tube.
The inert gas purges air as well as other unwanted gases and vapours out of the space between the dams with inert gas coming through a unique, much lower cost, simpler, more trouble free valve than used on other designs.
This 'new' design low profile valve allows us to manufacture a 1" (25 mm) Inflatable Tube and Pipe Purging System, which has never been achieved previously.
In addition, these systems have no raised metal parts making them ideal for use in a wide range of industries that would normally use internally polished stainless steel tubing and piping.
Standard sizes of Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging Systems are available for immediate delivery and special requirements can be produced in just a few days.
Don't use old fashioned purge bladders that burst and don't use homemade devices like cardboard, paper dams or foam bungs.
They contain a lot of water, air and water vapour. Bad products put your weld at risk and end up costing you more money.
Use the proper tool for the job! An Argweld® PurgElite® Inflatable Tube and Pipe Weld Purge System.
Some Advantages, Key Features and Benefits
Argweld® PurgElite® Inflatable Tube and Pipe Weld Purge Systems simplify the process of inert gas purging and are quick and easy to install.
Innovative purge gas feed device
No complicated valve to set.
Inflation of dams & inert gas purging with one line
No chance of inflatable dams bursting. One hose from the inert gas supply is all that is needed.
Specially developed dam connection hose
Protection sleeve, resistant to hot metal up to 700ºC.
Synthetic spinal connection hose gives complete flexibility to go around bends.
Low vapour pressure material.
No scratching of internally polished surfaces.
For all grades of stainless and duplex steel, polished interiors, exotic metals and alloys.
Centrepiece Glow Positioning Indicator
Argweld® PurgElite® cost saving systems can be positioned accurately.
The glow strip positioning band in the centre of each system gives ease of use when positioning the device underneath the weld.
Size range: 1 - 12" (25 to 300 mm) Ø
No restrictions in elbows or bends in pipe work.
First inflatable 1" (25 mm) system available.
Uses less inert gas
Special gas usage system significantly cuts the volume of gas used compared to all other methods.
The Argweld® PurgElite® System is very quick and easy to install. It can be positioned accurately and the dams inflate instantly.
No difficult valves to set, therefore saving time.
No burst systems.
Purging time is a fraction of that required by conventional methodsleading to significant savings and waiting costs. Cost savings charts are available on request.
The volume to be purged is localised.
Dramatic decrease in prices over all similar models.
Payback in less than one weld.
Highly reliable, giving regular, repeatable, controlled high quality results.
Gas pressure control ensures an even positive root bead with no notching.
Manufactured to Nuclear Quality Standards with Nuclear approved materials, these systems guarantee bright, shiny, coke and oxide-free welds.
Because Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging Systems have no metal parts exposed, internally polished stainless steel tubes are protected.
Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging Systems from 1" upwards are 'State of the Art' newly evolved technology by Huntingdon Fusion Techniques (HFT).
For many industries, such as Food, Semi- Conductor, Chemical, Pharmaceutical, Bio-Ethanol as well as any others where Hygienic, Aseptic, 'Clean in Place' or 'Steam in Place' welds have to be made
Food, Diary, Pharmaceutical, Beverages
All of the above mentioned industries use vast volumes of small diameter stainless steel tubing where Argweld® PurgElite® Tube and Pipe Weld Purging Systems will be valuable to help in providing optimum welding results when used in conjunction with the Company's PurgEye® range of Weld Purging Monitors.
Bioprocessing operations have continued to grow for 20 years controlling the risk of contamination.
This has pushed the demand for high-purity system design even beyond the boundaries of the pharmaceutical industry and has cascaded into industries that are typically unfamiliar with the need for system cleanability.
Amongst other applications, Argweld® PurgElite® Tube and Pipe Weld Purging Systems are designed for pristine Tube and Pipe Purging, "Clean in Place" (CIP) and "Steam in Place" (SIP) techniques as well as the Bio applications.
If the proper steps are not taken throughout the process, a proliferation of unwanted bacteria can devastate colonies of the desired bacteria, ruining the process.
The only segments of this process that would require high puritypiping design concepts are those that handle the enzymes.
Argweld® PurgElite® Weld Purging Systems are particularly valuable for use in these emerging areas of High Purity Processes such as Bioethanol Processors and Biofuels Production.
These new products from Huntingdon Fusion Techniques will be valuable for use with Nuclear Power Pipework particularly for repairing the inconel steam tubes in aging nuclear reactors that has been highlighted in the press recently following the problem in Japan and discoveries of potential leak areas in nuclear steam pipes elsewhere around the world.
In addition to their application in full size Nuclear Power Stations, the PurgElite® systems will be valuable in construction and repair of the massive volumes of small diameter tube and pipework in Nuclear Submarines and Nuclear Fuel re-processing facilities.
Tubing and piping used throughout the semiconductor industry requires a degree of purity that is even higher even, than that required of the pharmaceutical, food-and-dairy industries
Semiconductor operations have a critical need to mitigate the potential for particulate contamination, which can be devastating to today's highly miniaturized electronic components.
Microscopic particles in semiconductor facilities, whether coming from equipment, tubing, or the various fluids used during the manufacture of silicon chips, can render the chip useless, or at the very least, out of specification.
So achieving acceptable, repeatable welds is a key element during the fabrication of high-purity piping systems.
These high-purity welds are accomplished most efficiently by means of a certified welding operator using an orbital welder and PurgElite® Tube and Pipe Purging Systems together with the PurgEye® range of Weld Purge Monitoring instruments.
In addition, there is a myriad of other applications where stainless steel, titanium and nickel alloys require weld purging to this high degree of quality including Offshore, Aerospace, Liquid Natural Gas and so on, where the PurgElite® Pipe Purging Systems will make a valuable contribution to saving time, saving gas and preventing errors, particularly when used in combination with the Company's Weld Purge Monitoring instruments, some of which that have data acquisition software for quality control procedures.
For larger diameters, Huntingdon Fusion Techniques manufactures its rugged Argweld® Quick Purge® Systems to suit diameters from 8 to 80 inch (200 to 2000 mm).
Comparison of the PurgElite® verses the old Argweld® models
Outstanding new features on our latest model of Inflatable Pipe Purging Systems can be easily recognised as state of art technology when it comes to using a Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging System.
|Old Argweld® MKIV System||"New" PurgElite® Inflatable Pipe Purging System|
Old large profile valve.
Old complicated valve adjustment.
Occasional burst bladders.
Metal parts scratch intereriors of polished pipes.
High vapour pressure materials that outgas when heated.
Inflation of dams & inert gas purging with one line.
NO metallic parts to scratch interior of polished pipes.
NO large complicated valve.
NO wasted time setting valve.
NO burst inflatable dams when making a setting error or when operators do not pay attention to gas flow rate.
NO chance of inflatable dams bursting.
One hose from the inert gas supply is all that is needed.
|PurgElite® a scientifically better advanced product...!|
Technical Data and Specification
Argweld® PurgElite® Inflatable Tube and Pipe Purging Systems are available from 1 to 12" (25 to 300 mm).
High quality circumferential butt-welding of tubes or pipes with other tubes, pipes or fittings, requires inert gas to be used inside the bore to prevent oxidation and notching of the root penetration weld bead.
The tandem based Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging System has been designed specially for this work.
Each system has 2 protected inflatable dams connected by an armoured heatproof spinal tube.
Once ready to start purging, the system is inserted into the bore with one dam either side of the weld joint.
The spinal tube carries the gas to inflate the dams and the low profile valve to release the gas gently, to purge the interspace without turbulence.
When the gas connection is made and opened, the dams inflate to form a seal, after which the pressure in the system opens the purge valve.
The inert gas is then fed into the space between the dams expelling the air through the integral exhaust tubes.
Welding can then be carried out with the inert gas ensuring a clean even penetration bead.
Note: Welding will probably be started once the Argweld® PurgEye® Weld Purge Monitor™ indicates the required low level of oxygen has been reached.
Afterwards, the dams are deflated simply by disconnecting the purge gas feed and the device easily removed. This uniquely designed system means that only one gas connection is required for both dam inflation and weld purging.
The Argweld® PurgElite® Inflatable Pipe Weld Purging System has additional purge hose inlets to allow extra purge gas to be used for welding titanium and other reactive or high specification metal joints.
An equal number of outlets are provided. Unwanted connections are left closed with the blanking plugs provided.
This range of Argweld® PurgElite® Tube and Pipe Purge Systems are for pipes of nominal diameters from 1" (25 mm) to 12" (300 mm).
The connecting spinal tube can be shortened or lengthened to accommodate special requirements.
PurgElite® PURGE TIME (to 0.1% oxygen and less)
By using Argweld® PurgElite® Tube and Pipe Weld Purging Systems, the main savings, over any other system, are obtained in reduced
purging and waiting time, and in the much lower quantity of inert gas used.
Purging with old fashioned systems and homemade devices will require a flow rate of at least 24 ltrs/min (50 cu ft/hr)
for longer periods.
The chart below shows a typical purge time to reduce the air space to less than 0.01% oxygen.
Purge time for PurgElite® Inflatable Tube and Pipe Weld Purge System to less than 100 ppm oxygen.
Test Pipe Diameter 4" (100 mm)
Old fashioned or home made devices:
Purge time to 1,000 ppm.... 26 minutes
Flow rate 50 CFH (24 l/m).... inert gas usage 18 Cu ft (624 liters)
Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging System:
Purge Time to 100 ppm.... 3 mins 6 secs
Flow rate 21 CFH (10 l/m).... inert gas usage 0.9 Cu ft (30 Liters)
Purge Time below 35 ppm.... 7 - 10 mins (with extra gas inlet and exhaust integrated)
Product Codes, Sizes, Weights, Dimensions and Shipping Information
European Customs Tariff: 4016 9500
International Customs Tariff: 4016 999 0900
United States Customs Tariff: 8515 90 2000
Product Codes and Sizes:
Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging Systems are available for immediate delivery.
1 to 12" (25 to 300 mm)
Note: In the event that the correct size is not available, adjacent sizes may be usable as there is some crossover in the range of each model as shown in the internal diameter range.
Argweld® PurgEite® Inflatable Tube and Pipe Weld Purging Systems 1 to 12" (25 to 300 mm) Diameters
|PART Nº||NOMINAL PIPE SIZE||WEIGHT||INTERNAL DIAMETER RANGE|
|24 – 31 mm
44 – 57 mm
58 - 84 mm
80- 110 mm
103 - 135 mm
124 - 162 mm
164 - 190 mm
175 - 213 mm
216 - 285 mm
285 - 315 mm
|APBS401||30 Metre argon feed hose assembly for connecting Argweld® Pipe Purging System to gas supply (bottle or regulator) fitted at one end with a 3/8" female gas regulator connector and at the other end with a fitting to attach to the Pipe Purging System inflation hose.
Frequently Asked Questions
1.0 Can I use an inflatable purge system in a smaller or larger pipe?
In the event that the correct size is not available, adjacent sizes may be usable as there is some crossover in the range of each model. Check the specification sheet.
2.0 What happens with pre-heated pipes?
3.0 I cannot inflate the device properly.
In the event that the dams do not inflate sufficiently to seal within the pipe, check that the size of the PurgElite® System matches the pipe internal diameter.
Otherwise, try increasing the pressure from the regulator, very slightly.
4.0 What is the distance between the inflated dams?
The spinal tubes between the dams are of a standard length. A chart is available showing the length for each size of system. They can be manufactured shorter or longer, according to customer requirements.
5.0 What happens if one dam is damaged, do I have to purchase a whole new assembly?
No, the quick release fittings allow you to disconnect the damaged dam and replace it.
6.0 Can I weld return bends with the Argweld® PurgElite® Inflatable Tube and Pipe Weld Purging Systems?
Yes. The covers allow the assemblies, with the new design low profile valve, to easily slide around bends.
7.0 What is the maximum operating temperature for the standard Inflatable Pipe Purging Systems?
The connection hose has a temperature resistance of 700ºC (1292ºF) with 80˚C (176ºF) for the inflatable dams. For pre-heated pipes, refer to our Argweld® Heat Covered Purge Systems.
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