COLLAPSE RESISTANT HOSE AND THE MANUFACTURE OF THE SAME

摘要

Manufacturing a collapse resistant hose arrangement includes fabricating a hose around a flexible conduit having a spiral-wound interlock configuration. Fabricating the hose includes extruding a first polymer layer over the flexible conduit; cooling the first polymer layer; extruding a second polymer layer over the first polymer layer after the first polymer layer has cooled to form a core tube around the flexible conduit; and extruding an outer sheath around the core tube. In certain examples, the first polymer layer is sufficiently thin as to not flow into an interfering relationship with the spiral-wound interlock configuration of the flexible conduit during cooling.

主权项

1. A collapse resistant hose arrangement comprising:
a flexible conduit having a structured or textured outer surface; and a core tube disposed around the flexible conduit, the core tube including a first polymer layer and a second polymer layer, the first polymer layer having a thickness that is about 10-40% of a total thickness of the core tube.