A swivel ring flange assembly developed by Tube Turns Division of Chemetron Corp. is finding acceptance for underwater pipeline tie-in connections from Alaska to the Gulf Coast. The assembly consists of (1) a welding hub, and (2) a welded retainer that guarantees a close fit of (3) a rotatable ring that serves as a mating flange. After butt welding the flange to the tie-in pipe on the lay barge, the entire assembly is lowered to the tie-in level, and the diver swings it into position. If the bolt holes do not line up initially, the diver rotates the ring by hand to match the holes.

  • Availability:
  • Corporate Authors:

    Petroleum Publishing Company

    1200 South Post Oak Road
    Houston, TX  United States  77027
  • Publication Date: 1970-2

Media Info

  • Pagination: p. 77
  • Serial:
    • Offshore
    • Volume: 30
    • Issue Number: 2
    • ISSN: 0030-0608

Subject/Index Terms

Filing Info

  • Accession Number: 00056091
  • Record Type: Publication
  • Source Agency: American Petroleum Institute
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM