2012 de Rijk EST Mechanical Tube Plug Technology for HP Heat Exchangers in Ammonia and Urea Plants

The Pop-A-Plug® system is a mechanical tube plug to seal leaking or degraded high-pressure heat exchanger tubes. The design objective was to produce a fast and simple to install mechanical tube plug with the same or better-installed stability than a welded plug. This paper provides an update on the technical developments and successes of the Pop-A-Plug® in Ammonia and Urea Plants.

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