Argweld® Inflatable Single Ended Weld Purge Dams

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Single Ended for Closing Welds!

Argweld® Inflatable Weld Pipe Purging Dams are a low-cost alternative to plastic foam or cardboard dams that are still very frequently hand made at great expense by welders on site.

Inflatable Dams are manufactured from advanced low outgassing rate materials and are ideal for applications where Argweld® Tandem Pipe Purging Systems or the older style Purge Bladder Systems are less suitable. 

These simple to use, easy to insert Argweld® Inflatable Weld Purge Dams can be purchased for any diameter within their manufacturing range and can be used in connection with other styles or sizes of dams elsewhere within the piping system.

Argweld Inflatable Weld Purge Dams

 

 

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Excellent Grip and Perfect Seal

Argweld Inflatable Weld Purge Dams

Single Ended Dams for closing welds where retrieval is possible and other joints where a Tandem Pipe Purging System is not required.

Ideal for tight bends, T piece joints, dome end connections and so on, where an old fashioned Tandem Weld Purge Bladder Inflatable System or a modern Argweld® Pipe Purging System cannot be used.

This range of low cost, single ended Inflatable Weld Purge Dams is an innovative product, manufactured and designed by Huntingdon Fusion Techniques HFT®.

These Inflatable Weld Purge Dams provide an excellent grip in the pipe with an effective all-round seal.

Each Dam has a weld purge gas inflation hose, an exhaust port for exiting purge gas and a hose for extra gas input for higher speed purging, for weld cooling to reach interpass temperature specifications and for the assurance of obtaining a zero colour (non oxidised) weld. There is also an additional hose for a Weld Purge Monitor® to be attached.

Quick, fast, very simple to use use.

Argweld® is a recognised trademark in the industry and our family range of products is here to help you achieve that better weld and save money at the same time.

 

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Do not put your Welds at Risk!

Argweld Inflatable Weld Purge Dams Purging Bladder Systems Tubes Pipes Pipelines

Argweld® Inflatable Weld Purging Dams are a manufactured innovative designed and engineering solution to many welding problems, such as:

• Weld coking

• Oxidation

• Weld root contamination

• Weld cut-outs

• Loss of corrosion resistance 

• Other issues that might occur as a result of using plastic foam or other unsuitable materials that can release massive amounts of air, oxygen, hydrogen, carbon, gases and water into the weld zone during the welding process.

These Argweld® Inflatable Weld Purging Dams are suitable for when it is not possible to use Argweld® PurgElite® or Argweld® QuickPurge® Tandem Style Weld Purge Systems or the old fashioned Purge Bladder Systems. 

Apart from the benefit of having a metallurgically sound weld, the difficulties of cleaning an oxidised weld are eliminated, saving vast amounts of money in labour and material costs as well as the disposal costs where acids are concerned.

Even today, in this quality controlled environment, 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 and water is very undesirable to have in the presence of a weld.

As these poor materials are warmed by the welding operation, they start to outgas their water vapour, which starts to circulate around the weld joint and combine with the weld pool to cause porosity and oxidation.

Now there is no more reason to put welds at risk by using apparently cheaper materials, when for a very low cost, Argweld® Inflatable Weld Purge Dams can be purchased instead!

 

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Technical Data and Specification

Argweld Inflatable Weld Purge Dams Purging Bladders Systems Tubes Pipes Pipelines

Size Range 6 to 88" (152 to 2,235 mm)

Manufactured for pipe diameters from 6 to 88 inches (152 up to 2,235 mm), these lightweight systems are easy to inflate using the purge gas and are heat resistant up to 90ºC (194ºF).

The Argweld® Weld Purge Dams are manufactured from the same material as our range of QuickPurge® Inflatable Tube and Pipe Purging Systems, which are rugged and can be used time and time again.  

Leak tightness

Once the Dam is inflated and seals all around the internal circumference of the pipe, the excess inert purge gas spills out and purges the space around the weld joint, which then pushes the air (oxygen) out into the open atmosphere.

Proper Use

Each Dam is equipped with a purge/inflation hose (black), an extra purge gas hose (blue) as well as an exhaust hose for connecting a Weld Purge Monitor® (red).

The blue hose is suitable for passing extra gas into the weld zone at any time to cool welds and meet interpass temperature specifications, or to provide extra inert gas in the event of titanium, zirconium or special stainless applications needing a guaranteed zero colour weld.

Four pull tags are located around the circumference of the Weld Purge Dam, so rope, pull wires or slings can be attached for retrieval of the deflated system, if required. 

By producing bright shiny welds, there will be no porosity and no loss of corrosion resistance caused by oxidation.

 

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Frequently Asked Questions

Argweld Inflatable Weld Purge Dams Single Ended1.0 What sizes are the Argweld® Weld Purge Dams available in?
They are manufactured in sizes 6 to 88” (152 to 2,235 mm).

2.0 Are the Weld Purge Dams re-useable?
Yes, they are used from the same material as our range of QuickPurge® Inflatable Tube and Pipe Purging Systems, which are rugged and can be used for multiple welds.

3.0 What are the Weld Purge Dams made from?
Predominantly low vapour pressure, flexible, durable, heat resistant materials (up to 90ºC (194ºF)) selected for longevity.

4.0 How long will Argweld® Weld Purge Dams remain inflated?
Continuous purging will ensure effective sealing and deflation is instant once the argon feed hose has been disconnected.

5.0 How do I measure the residual oxygen content?
Weld Purge Dams are manufactured as standard with an exhaust to connect a Weld Purge Monitor®, which will measure the oxygen level as low as 10 ppm.

6.0 How do I remove the Weld Purge Dam from the pipe?
Four pull tags are located around the circumference of the Weld Purge Dam, so rope, pull wires or slings can be attached for retrieval of the deflated system, if required. 

 

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Shipping Information, Weights and Dimensions

Argweld Inflatable Weld Purge Dams Purging Bladder Systems Tubes Pipes Pipelines

Customs Tariffs:

European Customs Tariff: 4016 9500
International Customs Tariff:       4016 999 0900
United States Customs Tariff:       8515 90 2000
Canada Customs Tariff: 8515 90 2000

 

Product Codes and Sizes:

Argweld® Inflatable Weld Purging Dams from sizes 6 to 88" (152 to 2,235 mm).

Stock product codes APD (plus size required).

All Argweld® Inflatable Weld Pipe Weld Purge Dams™ are available for immediate delivery in the smaller size range 6 to 48" (152 to 1,219 mm).

Sizes above 48" (1,219 mm) are manufactured to order and can take up to 2 weeks subject to quantities required and prior orders.

Telephone us today!

 

 

PART Nº DESCRIPTION PRODUCT SIZES EXPANSION RANGE WEIGHT
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APGV001
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PurgeGate® valve c/w fittings to prevent over inflation.
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Items available as 'Downloads' 


Argweld Inflatable Weld Purging Dams Purge Bladders Systems Tubes Pipes PipelinesLeaflets and general sales material are available to everyone visiting our website.

Restricted access items are shown at the end of this Download section.

 

Argweld® Inflatable Single Weld Purge Dams™ A4 Leaflet

Argweld® Inflatable Single Weld Purge Dams™ Sales Flyer

Argweld® Inflatable Single Weld Purge Dams™ FAQ

Argweld® Pipe Purging Systems Family Range Poster

Argweld® Pipe Purging Systems Range Flyer

 

Special Note: The items below are restricted and only available in our Secure Login section. This is mainly for the protection of our Exclusive Distributor network.
Should you wish to receive an item mentioned below which is not active as a 'download' link on this page, please contact us or your nearest Distributor.

Argweld® Inflatable Single Weld Purge Dams™ User Instructions Technical Manual
Argweld® Inflatable Single Weld Purge Dams™ User List Customer Reference
Argweld® Inflatable Single Weld Purge Dams™ Training Notes
Argweld® Inflatable Single Weld Purge Dams™ Price List

 

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