Because of the applications where this conduit with rolls is employed, the only version available is the one with a heavy duty protective coating made by an outer EPDM rubber wrapping with an additional layer of glued aramid fibers. The combination of the two covers contributes to further strengthen the conduit and helps it better stand the abuse and pulling stress typical of the working environments where the submerged arc welding process is used. The fiber mesh shields the inner bodies from the arc UV rays while the yellow stripe pattern makes it more visible in the dark environment of some welding cells.
The bodies under the EPDM and aramid fibres wrapping can still freely rotate on their axis.
Although the conduit is bi-directional, the end quick-connectors slightly differ from one another, where the connect to the inner basic conduit (one type at the front and one at the rear).