Was Anchor/Darling Valve Company — Main-Steam-Line Valves for Nuclear and Utility Service asbestos documented in litigation?

Anchor/Darling Valve Company — Main-Steam-Line Valves for Nuclear and Utility Service 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 Anchor/Darling Valve Company — Main-Steam-Line Valves for Nuclear and Utility Service asbestos exposure?

Yes. Workers diagnosed with mesothelioma, asbestos-related lung cancer, or asbestosis after exposure to Anchor/Darling Valve Company — Main-Steam-Line Valves for Nuclear and Utility Service 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-Packing

Anchor/Darling gate, globe, and check valves for main-steam and feedwater service

⚖ Litigation Record1940s-1980sAlleged asbestos pathway - compressed asbestos sheet bonnet and body gaskets, braided asbestos stem packing, and asbestos-bearing spiral-wound gaskets installed at bonnet joints and flange connections on Anchor/Darling main-steam-line valves in nuclear and utility power stations; workers alleged fiber release during initial installation, routine repacking, bonnet-nut break-out, and outage-driven valve overhaul work.

Overview Product Facts Trades

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

Product Description

Anchor/Darling Valve Company, historically headquartered in Williamsport, Pennsylvania, is publicly identified in U.S. asbestos litigation as a specialty valve manufacturer whose gate, globe, check, and stop-check products were specified into main-steam-line, feedwater, and safety-related service at U.S. utility and nuclear power stations. Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that Anchor/Darling valves were engineered for high-pressure, high-temperature steam duty and were routinely installed on main-steam headers, hot-reheat lines, main feedwater piping, extraction steam, and emergency feedwater systems at fossil and nuclear generating stations from the mid-1940s through the early 1980s.

Court filings allege that the same operating envelope that made Anchor/Darling valves attractive to utility engineers — sustained service above 1,000 degrees Fahrenheit and above 1,500 psi — made asbestos-bearing compressed sheet gaskets, spiral-wound gaskets with asbestos filler, and braided chrysotile stem packing the routine sealing solution for the product line well into the late 1970s.

Asbestos Content

Plaintiffs alleged in publicly filed U.S. asbestos litigation that Anchor/Darling valves incorporated asbestos in the following structural roles:

Compressed asbestos sheet bonnet and body gaskets cut and installed between valve bodies and bonnets, plaintiffs alleged were scraped clean of bonnet flanges during outage overhaul work.
Spiral-wound gaskets with chrysotile filler used at high-pressure flange connections, allegedly broken out and replaced during scheduled maintenance.
Braided chrysotile stem packing installed in valve stuffing boxes, allegedly repacked repeatedly across the service life of each valve.
External thermal insulation applied to valve bonnets and adjacent piping by insulation contractors on the jobsite — publicly filed complaints allege the manufacturer knew asbestos block, blanket, and cement would be applied to its products in normal high-temperature service.

Workers Exposed

Publicly filed complaints identified the trades most frequently alleged to have encountered asbestos through Anchor/Darling valves:

Pipefitters and steamfitters installing and repacking main-steam and feedwater valves during construction and outage work.
Boilermakers tying Anchor/Darling stop-check valves into boiler drums, headers, and superheater outlets at fossil stations.
Nuclear power plant workers performing safety-related valve overhaul during refueling outages at commercial nuclear stations.
Insulators stripping and rewrapping asbestos block and blanket from valve bonnets during turnaround.
Machinists and millwrights overhauling valve internals in on-site machine shops.

If You Worked With Anchor/Darling Valves

If you worked with or around Anchor/Darling main-steam, feedwater, or safety-related valves at a U.S. utility, nuclear, or industrial power station and have been diagnosed with mesothelioma, asbestosis, lung cancer, or pleural disease, preserve your employment records, union work history, and any product-identification notes you can locate.

Free, confidential case evaluation: Speak with O’Brien Law Firm — (314) 936-2956

Product Facts

Trade NameAnchor/Darling gate, globe, and check valves for main-steam and feedwater service

Years Produced1940s-1980s

Asbestos ContentAlleged asbestos pathway - compressed asbestos sheet bonnet and body gaskets, braided asbestos stem packing, and asbestos-bearing spiral-wound gaskets installed at bonnet joints and flange connections on Anchor/Darling main-steam-line valves in nuclear and utility power stations; workers alleged fiber release during initial installation, routine repacking, bonnet-nut break-out, and outage-driven valve overhaul work.

CategoryGaskets-Packing Electrical-Components

Trust FundNo active trust

Exposed Trades & Occupations

Pipefitters and steamfittersBoilermakersPower plant workersNuclear plant workersInsulatorsMachinists and millwrights

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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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