Nuclear Power Plant Equipment — Asbestos Exposure Crosswalk

What This Equipment Is

Commercial nuclear power plants — pressurized-water reactors (PWRs) and boiling-water reactors (BWRs) built primarily from the late 1960s through the early 1990s — share most of their balance-of-plant equipment with conventional steam power plants. The plant includes:

  • Primary loop (PWR: reactor vessel, steam generators, reactor coolant pumps, pressurizer; BWR: reactor vessel, recirculation pumps)
  • Secondary loop — steam turbines (see Steam Turbines), main condensers (see Main Condensers), condensate / feedwater (see Feedwater Heaters, Condensate Pumps, De-Aerators)
  • Containment penetrations — extensive piping passing through the containment wall
  • Auxiliary systems — emergency core cooling, residual heat removal, component cooling
  • Balance of plant — circulating water, cooling towers, electrical, instrumentation

Many U.S. nuclear units came online before the 1970s asbestos-product reformulation. They incorporated extensive asbestos in pipe-insulation, block-insulation, gaskets, and packing throughout the secondary loop and balance of plant.

Why Nuclear-Plant Work Is a Distinctive Asbestos Exposure Context

Nuclear plants operate under uniquely strict maintenance and inspection regimes. ASME Section XI in-service inspection, NRC regulatory oversight, and plant-specific maintenance rules drive substantial recurring work on plant systems containing asbestos materials.

Asbestos abatement at nuclear plants is itself a regulated specialty, with NRC requirements layered on top of OSHA / EPA asbestos rules. Major modernization projects — steam-generator replacement, plant uprates, license-renewal-related work — generate concentrated asbestos disturbance under controlled conditions.

The combination of standard secondary-loop asbestos exposure with periodic high-intensity outage and modernization work makes nuclear-plant maintenance workers a documented exposure cohort.

Manufacturers Named in Litigation Involving Nuclear-Plant Components

  • Westinghouse Electric — reactor and turbine-generator OEM
  • General Electric — reactor and turbine-generator OEM
  • Combustion Engineering — reactor and balance-of-plant equipment
  • Babcock & Wilcox — reactor and balance-of-plant equipment
  • Foster Wheeler — balance-of-plant equipment
  • Johns-Manville — insulation throughout
  • Owens-Corning / Fibreboard — insulation
  • Pittsburgh Corning — Unibestos
  • Garlock Sealing Technologies — gaskets and packing
  • Crane Co. — valves

Documented Product References

Images sourced from publicly available product-identification reference materials. Inclusion does not constitute a finding of liability against any company.

Trust Funds That May Apply

  • Combustion Engineering 524(g) Asbestos PI Trust
  • Babcock & Wilcox Company Asbestos PI Trust
  • Manville Personal Injury Settlement Trust
  • Owens-Corning / Fibreboard Asbestos PI Trust
  • Pittsburgh Corning Corporation Asbestos PI Trust
  • Garlock Sealing Technologies LLC Asbestos PI Trust

Trades Most Exposed at Nuclear-Plant Work

Pipefitters, insulators (Heat & Frost), boilermakers, millwrights, electricians, contract outage crews, plant maintenance personnel, contract steam-generator replacement specialists.

Cross-References

Compiled from publicly filed asbestos litigation, EPA / OSHA records on nuclear-plant abatement, NRC inspection records, and industry-publication histories. Product and company references reflect what has been alleged or documented in publicly filed litigation. This page does not constitute a finding of liability against any company. Not legal advice; consult a licensed attorney about your specific situation.