The tube insert company
Established 1959  
 
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Solve condenser tube erosion problems
 
 
Ensign is a long established company serving the power generation, petrochemical and shipping industries.  We have years of experience and proven products that improve operating efficiency and help to avoid expensive downtime, repairs and re-tubes.
 
High quality self-expanding nylon condenser tube insert
 
Ensign developed the self-expanding Debris Screen Venturi Insert in 1969 to solve the inlet erosion, blockage and leak problems common in power station main condensers.  This high quality nylon condenser tube insert has been proved to be an extremely effective long term solution with many power station main condenser installations remaining in service for over 20 years.
 
Condenser tube plug
 
The ENSIGN Plug was also designed to seal both new and eroded condenser tubes or heat exchanger tubes that had developed a leak.  The two part variable diameter sealing has been successfully used at both conventional and nuclear generating stations.  The plug has no metal parts and does not need to be material matched to the tubes.