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West Country Welding Supplies

Argweld® 2" - 6" Purge Systems - West Country Welding Supplies, UK - West Country Welding Supplies, UK

Argweld® 2" - 6" Purge Systems

Argweld 2' - 6' Purge System2 to 6 inch Inflatable Pipe Purge Systems

The Inflatable Pipe Purge Systems have a number of distinct advantages leading to big cost savings:

Use Less Inert Gas

The volume to be purged is localized. For a typical pipe run, the volume of gas used is less than 2% of that required for a conventional purge.


The system is quick + easy to install. It can be positioned accurately and the dams inflate instantly. Purging time is a fraction of that required to purge by conventional methods.

Easy to Use

'Inflatable Pipe Purge Systems' simplify the process of inert gas purging, Training is Minimal.

Improved Quality of Welds

Leading to bright, shiny, coke and oxide-free welds very quickly. The process involved is highly reliable. It gives regular, controlled high quality results.

Fast Payback

The 'Inflatable Pipe Purge System' pays for itself in just a few welds.

Highest Standards

We manufacture to Nuclear Quality with Nuclear approved materials.
High quality circumferential butt welding of pipe to pipe and pipe to fitting requires inert gas to be used inside the bore to prevent oxidation and notching of the root penetration weld bead.
The best system devised for this is the Inflatable Pipe Purge System.
It is quick, reliable and easy to use, the volume of purging required is kept small, resulting in significant savings in both time and the volume of inert gas used.
We also manufacture special Inflatable Pipe Purging Systems to suit a number of other applications, such as the weld purging of T pieces, purging of branch pipes in Boilers, Heat Exchangers, etc.
All products carry and instant no quibble replacement guarantee!

The Inflatable Pipe Purge System is based on a simple idea.

Two protected inflatable dams are connected by a spinal tube.
The tube carries the gas to inflate the dams + the valve to purge the interspaces.
The system is inserted into the bore with one dam either side of the weld joint.
The dams are inflated 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.
Welding can then be carried out, the inert gas ensuring a clean even penetration bead.

Afterwards, the dams are deflated and the device easily removed.

This uniquely designed system means that only one inlet is required for both bladder inflation and introduction of the purge gas. The relief valve can be set to work at any desired flow up to 20 liters/minute and can be set to inflate the dams and purge the interspaces simultaneously every time.

Contact us for more details or to discuss any of your welding needs

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