Was National Oilwell Varco — Drilling Mud Pump asbestos documented in litigation?

National Oilwell Varco — Drilling Mud Pump 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 National Oilwell Varco — Drilling Mud Pump asbestos exposure?

Yes. Workers diagnosed with mesothelioma, asbestos-related lung cancer, or asbestosis after exposure to National Oilwell Varco — Drilling Mud Pump 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.

Pumps

National Oilwell Mud Pump Piston Seals

⚖ Litigation Record1940s–1985Allegedly asbestos-fiber compression packing and asbestos-reinforced piston/valve seals in triplex mud pumps used on drilling rigs, according to publicly filed asbestos litigation records

Overview Product Facts Trades

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

Product Description

National Oilwell (later National Oilwell Varco) triplex drilling mud pumps allegedly used asbestos-fiber compression packing on piston rods and asbestos-reinforced valve seals to contain high-pressure drilling mud, according to publicly filed asbestos litigation records. Rig hands allegedly repacked these mud pumps at the wellsite, cutting and installing braided asbestos packing rings by hand — a job that allegedly released respirable asbestos fibers directly at the pump.

Workers Exposed

Roughnecks, drilling rig floormen, and oilfield mechanics allegedly performed most of the mud-pump repacking and seal work. Toolpushers and drillers allegedly supervised the work in the immediate breathing zone. Rig maintenance crews allegedly cleaned out spent packing debris from pump housings during scheduled overhauls.

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If You Worked at National Oilwell Varco

If you or a family member worked at National Oilwell Varco 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 NameNational Oilwell Mud Pump Piston Seals

Years Produced1940s–1985

Asbestos ContentAllegedly asbestos-fiber compression packing and asbestos-reinforced piston/valve seals in triplex mud pumps used on drilling rigs, according to publicly filed asbestos litigation records

CategoryPumps Gaskets-Packing Oilfield-Services

Trust FundNo active trust

Exposed Trades & Occupations

Oilfield roughnecksDrilling rig floormenOilfield mechanics

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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.

Free case evaluation — no obligation to hire
No attorney fee unless we make a financial recovery
Statutes of limitations may limit the time you have to act
Trust fund claims, civil lawsuits, and VA benefits pursued simultaneously

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Asbestos Product Liability & Mesothelioma Claims

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