The Falkenburg Shipyard, Sweden, has made something of a speciality of converting vessels into chemical tankers. The yard has just converted the Porsgrumn, a specialised tanker built in 1967, to the Thunktank 7. A particularly interesting feature of this conversion is the use of industrial rubber linings in the tanks and for the entire cargo-handling equipment, including pumps, pipework, etc. The specifications were prepared in consultation with the vessel's charterers, Boliden Intertransport AB, Sweden. Because of the double hull construction, the inside of the cargo tank is completely flush. The rubber-lining contractors sandblasted the steel before applying the special rubber linings, which had then to be vulcanised. This was achieved by filling the tanks with water which was circulated through a temporary boiler to raise its temperature to 90 deg C. The cargo carried will be phosphoric acid, which is highly corrosive, and fluosilicic acid which is even more dangerous, attacking metals, glass, and stoneware, and forming powerful fumes which are extremely poisonous. General arrangement profiles are included.

  • Corporate Authors:

    Reed (Thomas) Industrial Press Limited

    36/37 Cock Lane, Saracen's Head Building
    London EC1A 9BY,   England 
  • Publication Date: 1976-3

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00152888
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: May 11 1977 12:00AM