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Alexander Berlin

Alexander Shteinberg

The invention relates to methods of sealing of pipeline joints operating with cryogenic liquids. The method is realized with the use of a tape of a porous structuring material that may be dry or impregnated with a liquid having a freezing point above the temperature of a cryogenic fluid in the pipeline. The material of the tape and the impregnating liquid are inert to the cryogenic fluid and to the environment. The method consists in that prior to filling the pipeline with the cryogenic fluid, the tape is tightly wrapped around the joint or an area that is at risk of a damage or puncture, the wrapping is then wetted by pouring on it the same liquid that was used for impregnation, and then the cryogenic fluid is fed to the pipeline for freezing the liquid that is contained in the tape for forming a tight frozen seal around the joint.

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Moscow, Russia

Alexander Berlin