Design changes to improve floating hose performance in oil tanker loading from offshore single-point moorings have been made by Litton Industries, Hewitt-Robins Div. Stress at the buoy end of the hose line was reduced by replacing the first two 30 ft lengths with nonfloating and partially floating units. Hose failures as a result of contact with tankers' bows were minimized by incorporating special shock padding in combination with a highly abrasive-resistant cover for lengths subject to bow contact. The up-down stress at the tanker end of the hose system was reduced by replacing the next to last two lengths of full floating hose in the system with two lengths of partial-buoyancy hose. A more robust carcass and a more pliable flotation foam in the tanker rail hose eliminated excessive wear and failure problems. The loss of buoyancy in an old hose was restored by replacing the two ends of the floating line with special new hoses providing twice the flotation of a normal floating hose. A new tanker rail hose for a twin floating hose system in Singapore had the positioning clamp relocated from the inboard end to the center and additional flotation foam at the manifold end to eliminate the need for a buoy.

  • Authors:
    • Angelus, G
  • Publication Date: 1972-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00056539
  • Record Type: Publication
  • Source Agency: American Petroleum Institute
  • Files: TRIS
  • Created Date: Jul 22 1974 12:00AM