Conduit vs Pipe

In general, plastic conduits and plastic pipes are very similar in structure and
composition, but deployment is where they differ.
• Conduits do not have long-term internal pressure.
External forces are unchecked; if ovalized during installation, it may not recover
during service.
Long-term stress rupture is not a factor. (Hydrostatic Design Basis is not required
in material selection.)
• Conduit ID is chosen by cable occupancy, where internal clearances are critical;
whereas, for piping applications, ID is based on volumetric flow requirements.
• Path of installation for conduit is very important – radius of curvature,
vertical and horizontal path deviations (undulations) and elevation changes all
significantly affect cable placement.