Pipe Transits Information

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Pipe transits are sealed bulkhead pathways for pipe that are designed to withstand pressure, contamination, and fluid ingress. They are used in situations where piping cannot be routed around walls or bulkheads, or if the piping must pass through an area where specific hazards exist that are beyond the functional ratings of the pipe itself.  Pipe transits are generally modular systems including conduit frames, sealing plugs, and appropriate insulation, putties, or foaming materials, as necessary. 


The conduit frame is, essentially, a support box which fits snugly into the hole through the wall or bulkhead, through which the pipes will pass.  The shape and geometry of the conduit frame can vary depending upon the application, the size and shape of the pipes involved, or if there is an existing passageway into which the frame must fit.


Sealing plugs cap both ends of the conduit frame, allowing piping to pass through, but covering the rest of the passage.  These devices are available in many size and shape configurations, and material compositions.  Sealing plugs generally come with precut holes through which piping can be passed, although some styles may be purchased uncut, allowing the user to determine the best design for passing the pipe.


All pipe transit systems include some form of insulation to protect the piping.  In many cases this is simply plastic or rubberized fill to support and protect.  However, specialized putties and foams are available that can harden for extra support, or release flame suppressing materials if the piping is threatened.

Specialty Pipe Transits

Specialty pipe transits are available for specific applications such as marine and offshore installations, aerospace designs, and penetrations required to withstand explosion and fire hazard.

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  • Cable Transits

    Cable transits are bulkhead or barrier modules that allow electrical cables to pass through, while providing various levels of sealing, strain relief, and damage protection, depending on the application requirements.

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