Patent ID: 6889717

Claim:
Flexible tubular pipe comprising from the inside outwards at least, an internal sealing sheath of a polymer material, a cylindrical pressure vault having an external face and having an internal face placed over the internal sheath, the vault comprising a winding in a helix with a short pitch and with a gap between successive turns of the winding, a metal profile wire with successive turns interlocked from below by a fastener wire, at least one ply of tensile armour layers wound with a long pitch, and an external protective sealing sheath made of a polymer, the fastener wire has substantially the same height as the profile wire, the profile wire and the fastener wire being interlocked, with no nominal radial contact, at most to one third of the height of the profile wire; and the ratio of a cross section of the profile wire to a cross section of the fastener wire is between 1 and 2.