Product Description

Foster Wheeler Corporation shipped closed feedwater heaters — horizontal and vertical shell-and-tube regenerative heat exchangers — to utility, refinery, chemical, and Navy customers as bare pressure vessels intended for on-site thermal lagging. Because feedwater heaters are frequently opened for tube-bundle pulls, retubing, and gasket replacement, the outer insulation was typically installed as removable asbestos-fabric blankets and mattress covers rather than monolithic block-and-cement systems.

Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that Foster Wheeler feedwater heaters were routinely covered with asbestos-cloth outer lagging at multiple locations:

  • Removable asbestos-cloth insulation blankets over the heater shell and heads
  • Asbestos-fabric mattress covers filled with amosite or chrysotile loose fill
  • Asbestos-wick lacing stitching the blanket seams closed around nozzles and manways
  • Asbestos-cloth pillow-covers at channel-cover flanges and steam-inlet nozzles
  • Asbestos-tape wrapping at drain, vent, and instrument-nozzle penetrations

Foster Wheeler has been named as a Manufacturer Defendant in publicly filed U.S. asbestos personal-injury and wrongful-death litigation.

Workers Exposed

  • Insulators (HFIAW members) cutting, fitting, unlacing, and re-tying removable heater blankets
  • Boilermakers stripping blankets before manway breakouts and re-installing after
  • Pipefitters (UA members) removing blanket sections at flange-gasket replacements
  • Millwrights and maintenance mechanics during tube-bundle pulls that required full-shell strip
  • Navy machinist’s mates and hull technicians re-lagging shipboard heaters after service

Blanket removal typically involved cutting asbestos-cloth lacing with knives, folding stiffened jackets, and shaking loose amosite fill onto the deck plate — an activity plaintiffs allege released respirable amphibole fiber into the immediate work area.