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On-Line Mechanical Plugging

Mechanical PluggingHydratight’s Mechanical Line Plugging service is ideal for temporary or permanent isolation of pipe work, allowing repair or modification without the need for plant shut-down or the loss of production or process media.

Purpose designed equipment in the hands of highly skilled technicians enables fast and safe Mechanical Line Plugging for emergency and scheduled stopping of a liquid or gas flow in a pipeline at full operating pressure.


  • Isolate, repair or modify pipework without production loss
  • Plug and bypass without interruption to process flow

On-Line Freeze Plugging

Cryogenic freezing is a non-invasive alternative to Mechanical Plugging suitable for pipelines up to 48” diameter.

Our team of highly skilled engineers will freeze the process or production media at full operating pressure to form a plug which allows modifications or repairs downstream without the need to drain the pipeline.


  • Continued production during pipe work modification or repair
  • Integrity of pipe work maintained – no need to re-test plug location
  • Drainage of media avoided, production performance maintained

For Mechanical Plugging services available in your area please contact your local representative.

On-Line Mechanical Plugging

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Technical data

English PDF Document, 271.5 KB
English PDF Document, 283.8 KB
Deutsch PDF Document, 302.4 KB