Type HFX is a robust conduit with a galvanised steel core and a thick, smooth TPU cover that is highly resistant to chemicals, is halogen free and flame retardant. It is a very flexible conduit designed for dynamic applications where frequent movement occurs. When exposed to movement, the conduit retains its flexibility and integrity even at low operating temperatures; it does not stiffen or rupture. Type HFX meets the stringent requirements of the rail and subway infrastructure, train signalling, rolling stock, marine, petrochemical and chemical industries as well as closed areas like airports, tunnels and subway stations.