Pronal - Uniplug or Pipe Stoppers - Brochure

On the first hand, Operators greatly appreciate uni-plug stoppers when they are called upon to intervene in pipelines on nuclear sites. These low-pressure inflatable stoppers are effectively capable of preventing any foreign objects from falling into pipelines. These stopper systems are a safeguard against FME risks that could pose a threat in nuclear installations (Foreign Material Exclusion).