Pipe Freezing

With our pipe freezing system, we create a frozen plug inside the pipeline.
Our service is suitable for use regardless of the nominal width, pipe material,
line pressure and temperature. Your considerable advantages:
Create a flow stop with following repair or modification
on the pipe behind the plug with low costs.

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Within our services we offer pipe freezing on pressured lines

Our service concept of pipe freezing assists you ...

< in avoiding production loss
< in conceiving productive capacity
< in reducing energie loss
< in increasing plant safety

Pipe freezing is the ideal solution for modifications on pipes, where draining is not possible.
With our pipe freezing service these modifications can be accomplished online, without draining the pipe, in a safe and professional manner.

Within our services we offer pipe freezing on pressured lines

Das Vereisen der betreffenden Rohrleitungsstelle geschieht mit flüssigem Stickstoff oder Kohlendioxyd. Eine passende, zweigeteilte Schalenkonstruktion wird um die Rohrleitung montiert und mit dem Frostmittel beaufschlagt. Die notwendige Menge an Stickstoff und damit verbunde Vereisungszeit ist abhängig von Nennweite, Medium und Betriebstemperatur der zu vereisenden Rohrleitung. Die Temperaturdifferenz an den Halbschalenenden gibt Auskunft über den Fortschritt der Vereisung.

Pipe freezing process:

1) pipe freezing with water at 200 bar

2) shortly before the ice plug is built

3) increase of pressure up to 255 bar

4) after opening the pipe the plug holds 255 bar

Freezing of a water conduit DN 200

cut pipe with ice plug

pipe with freezed sleeve

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