Was Stone & Webster — Process Piping asbestos documented in litigation?

Stone & Webster — Process Piping is documented in public asbestos litigation records as a manufacturer whose products contained asbestos during the mid-twentieth century. Workers in industrial facilities, power plants, refineries, shipyards, and commercial construction who handled or worked near these products may have experienced occupational exposure.

Which trades had the most exposure?

Pipe coverers and insulators, pipefitters, boilermakers, millwrights, and maintenance workers are among the trades most frequently documented in asbestos exposure claims. Workers who cut, fitted, or removed asbestos-containing products — and those working in close proximity during that work — typically had the highest fiber concentrations.

How long do workers have to file an asbestos claim?

Statutes of limitations for asbestos personal injury claims vary by state, typically ranging from one to five years from the date of an asbestos-related diagnosis. The clock generally starts at diagnosis, not exposure — mesothelioma can have a latency period of 20 to 50 years. An asbestos attorney can identify the deadlines that apply to your specific situation.

Can workers file claims related to Stone & Webster — Process Piping asbestos exposure?

Yes. Workers diagnosed with mesothelioma, asbestos-related lung cancer, or asbestosis after exposure to Stone & Webster — Process Piping products may pursue claims through civil litigation. An experienced asbestos attorney can assess available defendants, applicable trust funds from co-defendants, and the states where claims can be filed most effectively.

Can family members file secondary exposure claims?

Spouses, children, and household members who developed asbestos-related disease through contact with contaminated work clothing brought home by an exposed worker may be eligible for secondary (household) exposure claims. Wrongful-death claims can also be filed by surviving family members of workers who died from asbestos-related disease.

Gaskets

Stone & Webster Engineering Corp process-piping flange gasket specifications for refinery, petrochemical, and power-block process piping, allegedly written to require compressed asbestos fiber (CAF) sheet gaskets and asbestos-filled spiral-wound gaskets on raised-face and ring-joint flanges throughout Stone & Webster-engineered units

⚖ Litigation Record1940s–early 1980sAlleged chrysotile-fiber CAF sheet gaskets and asbestos-filled spiral-wound flange gaskets specified in Stone & Webster process-piping standards — used at pump discharge flanges, tower shell flanges, exchanger channel flanges, and instrument tap flanges. Released as friable fiber when gaskets were scraped, chiseled, or wire-brushed from raised-face flanges during turnaround by refinery and chemical plant pipefitters and boilermakers working on Stone & Webster-engineered process units

Overview Product Facts Trades

Litigation Record: Information below reflects allegations in publicly filed asbestos litigation — plaintiff allegations, not findings of fact.

Product Description

Stone & Webster Engineering Corporation (Boston, MA; later part of Shaw Group and Westinghouse) allegedly served as engineer, procurement, and construction (EPC) contractor on scores of U.S. refineries, chemical plants, and power-block projects from the 1940s through the 1980s. Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that Stone & Webster’s process-piping specifications, gasket standards, and materials-of-construction schedules required compressed asbestos fiber (CAF) sheet gaskets and asbestos-filled spiral-wound gaskets on raised-face and ring-joint flanges throughout Stone & Webster-engineered process units.

This page covers the specific process-piping gasket product line — the flange gasket materials specified into and supplied against Stone & Webster piping isometrics — as distinct from Stone & Webster’s broader EPC construction role.

Workers Exposed

Plaintiffs allegedly identified the following trades as exposed during Stone & Webster-engineered plant construction and turnaround:

Refinery pipefitters breaking out and re-gasketing flange joints on Stone & Webster process piping during initial construction and later turnarounds.
Boilermakers pulling exchanger channel covers and cutting CAF sheet blanks for the specified spec.
Chemical plant millwrights replacing pump-discharge gaskets to the Stone & Webster gasket schedule.
Refinery insulators stripping calcium silicate lagging back to flange faces prior to the boilermaker/pipefitter break-out.

Alleged exposure mechanisms included dry-scraping and wire-brushing residual gasket material from raised-face flanges, cutting CAF sheet stock at the deck plate, and installing pre-cut spiral-wound gaskets on the pipe rack.

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If You Worked at Stone & Webster

If you or a family member worked at Stone & Webster and were exposed to asbestos-containing materials at this facility — and were diagnosed with mesothelioma, asbestosis, lung cancer, or another asbestos-related disease — you may be entitled to significant compensation. Time-sensitive filing deadlines apply.

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Product Facts

Trade NameStone & Webster Engineering Corp process-piping flange gasket specifications for refinery, petrochemical, and power-block process piping, allegedly written to require compressed asbestos fiber (CAF) sheet gaskets and asbestos-filled spiral-wound gaskets on raised-face and ring-joint flanges throughout Stone & Webster-engineered units

Years Produced1940s–early 1980s

Asbestos ContentAlleged chrysotile-fiber CAF sheet gaskets and asbestos-filled spiral-wound flange gaskets specified in Stone & Webster process-piping standards — used at pump discharge flanges, tower shell flanges, exchanger channel flanges, and instrument tap flanges. Released as friable fiber when gaskets were scraped, chiseled, or wire-brushed from raised-face flanges during turnaround by refinery and chemical plant pipefitters and boilermakers working on Stone & Webster-engineered process units

CategoryGaskets Refineries Chemical-Plants

Trust FundNo active trust

Exposed Trades & Occupations

Refinery PipefittersBoilermakersChemical Plant MillwrightsRefinery Insulators

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Were You Exposed to an Asbestos-Containing Product?

If you have been diagnosed with an asbestos-related disease and were exposed to asbestos-containing products, you and your family may be entitled to significant compensation through asbestos trust funds and civil litigation. An attorney experienced in product liability and asbestos claims can evaluate your case — at no cost to you.

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Asbestos Product Liability & Mesothelioma Claims

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