pipe freezing

Pipe freezing is a technique used to modify and repair pipelines.

Pipe freezing cools the exterior of the pipe for a period of time long enough for the fluid within the pipe to solidify. The frozen fluid isolates a section of the pipe so that work can be performed in a more expeditious manner.

Pipe freezing is a useful tool when shutoff valves are not available in the area of the pipeline that needs repair. Pipe freezing permits repairs in isolated areas. Because individual sections of a pipeline can be separated using the pipe freezing method, the entire pipeline system may not need to be shut down.

What is Pipe-Line Freezing?

Pipe freezing is a proven method that allows any project manager to eliminate the time and cost of drains downs, chemical waste removal and refilling. Any commercial, residential or plant building with piping systems containing a wide range of liquids will potentially require maintenance. Temporary line flow stopping through liquid nitrogen pipe freezing can be used on most pipe work materials: stainless steel, copper, or PVC without affecting the pipe.

ADVANTAGES OF PIPE FREEZE ISOLATION

• Piping modifications performed without complete building or system drain downs
• Save time & money. Avoid replacing costly chemically treated fluids
• Avoid the possible disposal of wastewater or environmentally hazardous fluids
• Pipe Freezes are a non-intrusive method of developing temporary piping isolations
• Internal piping fluid develops solid, safe, and workable freeze plugs

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Our Approach
We can provide pipe freezing on lines of up 12” in diameter, and 12” wet taps. This service allows pipe system maintenance or modification without a complete shutdown or system drainage. Monitoring system and liquid nitrogen assure that freeze plugs retain the integrity to a higher pressure than the piping itself.