Abstract: According to the present invention, there is provided a hose assembly with an inner fluoropolymer layer having a smooth inner surface and an outer polyamide layer having an undulated surface.

Abstract: A method of making a hose assembly (10) includes the steps of disposing a reinforcing layer (14) having interstitial spaces extending therethrough about a tubular inner liner (12) and heating an outer surface (16) of the inner liner (12) to cause it to melt and disperse into the interstitial spaces of the reinforcing layer (14) and the fibers themselves to bond the first layer to the inner liner (12). A lightweight hose assembly (10) of the type adapted for conveying fuels and other corrosive fluids is also disclosed. The assembly (10) includes a tubular inner liner (12) including a melt extrudable polymeric fluorocarbon material having an external surface (16). A layer (14) having gaps extending therethrough is disposed about the inner liner (12). The inner liner (12) is dispersed into the layer (14) and bonds the layer (14) to the external surface (16) of the inner liner (12).

Abstract: A lightweight hose assembly (10) of the type adapted for conveying fuels, halogens, and other volatile corrosive fluids is disclosed. The assembly (10) includes a tubular inner liner (12) including a polymeric fluorocarbon material resistant to chemical and heat degradation. A reinforcing layer (14) having gaps extending therethrough is disposed about the inner liner (12). The assembly (10) further includes an outer fluoropolymer coating (16) dispersed throughout the reinforcing layer (14). The hose assembly (10) is characterized by including at least one polymeric fluorocarbon reinforcing layer (18) disposed about the reinforcing layer (14) for increasing strength and flexibility while providing assistance to chemical build-up and degradation to the hose assembly (10).