Press

Liquid Nitrogen Pipe Freezing


Pipe freezing is a simple and efficient way of sealing a pipe or system while pipe repairs or general pipework maintenance is carried out, without the need to drain the system.

Accu-Freeze™ Pipe Freezing Systems are available from the Pipestoppers® Division of Huntingdon Fusion Techniques HFT®.

Accu-Freeze™ works by reducing the pipe fluid to a temperature below its freezing point and developing a freeze plug. This controlled method of pipe freezing uses liquid nitrogen (LN2) to freeze stationary liquids in a section of pipe or tubing. The nitrogen is passed through a coil surrounding the pipe producing a frozen plug inside and hence preventing flow through the part to be removed.

Luke Keane, Technical Sales Manager for HFT® said: “Accu-Freeze™ ensures very little drain-down or refill and little to no system downtime. 

“The ice plug only forms beneath the Accu-Freeze™ coil wrap, jacket or aluminium clam jacket. The system is effective on 6 - 12" (150 to 300 mm) pipe or tube. The ice plug does not expand outside of the range of the jacket or coil. 

The LN2 injections are automated which reduces the operators' workload and the amount of LN2 consumed, keeping operating costs low. Accu-Freeze™ can also be operated remotely, which makes it ideal for use inside ‘hot' nuclear areas where personal exposure must be kept below certain limits.

Many plumbing and maintenance companies have already switched to our Pipe Freezing Systems attracted by the significant cost savings involved.



New service from OilVoice
Trip Shepherd is for companies who need to track their staff in areas of risk.
It's free to use, so we invite you to try it.

Visit source site

https://huntingdonfusion.com/index.php/en_gb/news/...

pipe freezingpipe repairshuntingdon fusionweld purgingpipe purging masters

More items from michaelareay


Weld Purge Film for a Variety of Pipe Sizes

Low cost weld purging a variety of tubes and pipes sizes can be achieved by the use of low cost Weld Purge Film®. Weld Purging Experts, Huntingdon Fusion Techniques HFT® recommend switching home made dams produced of unsuitable material, to their low cost Weld Purge Film® to achieve oxide free, ze ...

Michaela Reay


Posted 1 day agoPress > weld purgingweld purge filmback purging +1

New Inflatable Rubber PetroChem Stoppers

The Pipestoppers® Division at Huntingdon Fusion Techniques HFT® have launched new Rubber PetroChem Stoppers, for pipe stopping where access is difficult.  CEO Managing Director, Georgia Gascoyne said: “Our new Rubber PetroChem Stoppers are an easy way to stop the flow of gas or liquids along a pip ...

Michaela Reay


Posted 1 month agoPress > huntingdon fusionweld purgingpipe stopping

Back Purging with Argweld® Weld Backing Tape®

Back Purging is the process of protecting and shielding the back side or under side of the weld during welding to prevent oxidation. Back Purging with fiberglass Weld Backing Tape® supports weld roots and can prevent oxidation, sugaring, achieving clean, oxide free welds.  Luke Keane®, Technical ...

Michaela Reay


Posted 1 month agoPress > weld backing tapesugaringweld oxidation +2

Expanding Rubber Plugs for use with Oils, Hydrocarbons and Petrochemicals

Often, pipes containing oils, hydrocarbons and petrochemicals need to be blocked but not all plugs are suitable for such applications. The Pipestoppers® Division at Huntingdon Fusion Techniques HFT® manufacture a range of Rubber Plugs, for fast, reliable and safe pipe stopping. Ron Sewell, Chairm ...

Michaela Reay


Posted 1 month agoPress > rubber plugspipe blockingpipe stopping +2

Distance Weld Purge Monitoring

GTA/TIG welding long pipelines made of stainless steel can be found in many different industries including Oil and Gas, Nuclear and LNG. The use of stainless steel can offer many advantages including corrosion resistant properties and cost-effectiveness of the alloy. With Stainless Steel being a r ...

Michaela Reay


Posted 1 month agoPress > huntingdon fusionpurgeyeweld purging +3
All posts from michaelareay