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What is pipe freezing?

Author(s) : BURTON M.

Type of article: Article

Summary

Defines pipe freezing (freeze isolation or line freezing) as a method of achieving a temporary isolation in a liquid-filled pipe. The isolation may be required for a variety of maintenance or repair conditions. Explains how the technique works and reviews its history. Explains where pipe freezing can be used and where it can't. Explains why the technique does not cause the pipe to burst. Warns against low-temperature embrittlement. Describes necessary safety precautions and gives an example of controlled temperature freezing, where the pipe temperature is held at a predetermined value rather than being allowed to fall to near the temperature of the liquid nitrogen cooling medium.

Details

  • Original title: What is pipe freezing?
  • Record ID : 1998-0227
  • Languages: English
  • Source: Plant Eng. - vol. 40 - n. 5
  • Publication date: 1996/09

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