A recent IMCO Conference focused attention on the prevention of pollution of the sea by oil tankers. This article looks at the use of eductors (water-jet pumps) to clear water from tanks. The V.M. Bilgemate eductor, a peripheral jet model, is able to handle solids suspended in liquid and also large quantities of air. Naval vessels use them for damage-control systems and for bilge and ballast systems, while Amoco, Esso, and other operators use them for pumping bilges and stripping ballast tanks. Portable eductors are widely used as emergency pumping devices. The fire line is usually used to power an eductor lowered into a tank to pump out ballast to a level where a broken reach-rod can be repaired. Eductors can be used to transfer products as long as they are powered with driving fluid of the same product. When handling LNG and ammonia, and certain chemicals, the eductors are made of stainless steel. The LNG carriers being built by General Dynamics and Avon Shipyards use stainless-steel eductors that can pump LNG or salt water in case of emergency flooding, in addition to conventional eductors. Order from BSRA as No. 49,994.

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    Institute of Marine Engineers

    Memorial Building, 76 Mark Lane
    London EC3R 7JN,   England 
  • Publication Date: 1978-8

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Filing Info

  • Accession Number: 00194230
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: May 26 1979 12:00AM