Company History

The Lawler Manufacturing Company is an American valve manufacturer established in 1896 and based in Indianapolis, Indiana. The company built a long-standing reputation for thermostatic mixing valves and temperature-regulating valves — devices that blend hot and cold water to deliver tempered water at controlled temperatures. Lawler valves have been used across institutional, commercial, and marine hot-water and process systems, including in showers, wash stations, and other tempered-water applications where consistent temperature control is required.

During the mid-twentieth century, when much of this equipment was in service, asbestos was a standard material in the mechanical-sealing and thermal-insulation practices surrounding valves and hot-water systems. Valve manufacturers and the trades that installed and maintained their products routinely used asbestos-containing gaskets, packing, and insulation that were considered safe and industry-standard at the time.

According to U.S. Navy machinery records, Lawler thermostatic and temperature-regulating valves were documented aboard U.S. Navy vessels including the aircraft carriers USS Nimitz (CVN-68) and USS Forrestal (CVA-59) as documented naval original-equipment-manufacturer (OEM) equipment.

Asbestos-Containing Products

Lawler did not manufacture asbestos as a raw material. However, according to asbestos litigation records, valves and the hot-water systems they served were commonly assembled, insulated, and maintained with asbestos-containing components — principally gaskets, packing, and adjacent pipe insulation — that were considered industry-standard at the time.

Gaskets create fluid-tight seals at valve bonnets, unions, and flanged connections. Plaintiffs have alleged that valves of this vintage were fitted with compressed asbestos fiber gaskets and that replacement gaskets specified for such equipment were similarly composed of asbestos-containing materials.

Valve packing was used to seal the valve stem where it passes through the bonnet. Plaintiffs have alleged that braided or compressed asbestos packing was standard in valves of this period and that installing, adjusting, or replacing it could release asbestos fibers.

Adjacent pipe insulation on the hot-water and steam lines served by these valves has also been identified in litigation involving valve installations. Plaintiffs have alleged that asbestos-containing insulation on connected piping was disturbed during valve installation and maintenance. According to court filings, the hazard was not limited to initial installation — because gaskets, packing, and insulation degrade under heat and continuous operation, they required periodic replacement, and cutting, scraping, or removing worn asbestos-containing material allegedly generated airborne fibers. Individuals seeking to confirm whether specific Lawler equipment is associated with asbestos-containing components are encouraged to consult asbestos litigation records, period product documentation, or an attorney with access to product-identification databases.

Occupational Exposure

According to asbestos litigation records, exposure to asbestos-containing components associated with valves and hot-water systems of this type occurred across a range of naval, marine, and building-trades occupations. The following worker categories appear with regularity in asbestos claims involving valves:

Machinist’s Mates and Shipboard Engineers — Navy personnel who operated and maintained hot-water and tempered-water systems aboard ship allegedly worked around asbestos-containing gaskets, packing, and insulation during routine maintenance and overhaul.

Pipefitters and Plumbers — Workers who installed valves into piping systems handled gaskets at flanged and threaded connections, repacked valve stems, and worked around insulated hot-water and steam lines.

Shipyard Workers — Personnel who installed, overhauled, or repaired valve and piping systems during construction, refit, or drydock periods may have encountered asbestos-containing components associated with this equipment.

Building and Institutional Maintenance Personnel — Because Lawler valves were used broadly in institutional and commercial hot-water systems ashore, workers who maintained this equipment in hospitals, schools, and other facilities appear in litigation involving valve and piping systems.

Bystander and Secondary Exposure — Asbestos litigation records also reflect claims by workers who did not perform the maintenance themselves but worked in proximity to those who did, as well as family members who may have experienced take-home exposure from fibers carried on work clothing.

The latency period for asbestos-related diseases — including mesothelioma, asbestosis, and asbestos-related lung cancer — is typically 20 to 50 years following initial exposure, so workers exposed during the peak decades of asbestos use may only recently be receiving diagnoses.

Trust Fund / Legal Status

Lawler Manufacturing Company is classified as a Tier 2 manufacturer for purposes of this reference site. This designation means the company has been associated with asbestos-related personal injury litigation, but no dedicated Lawler asbestos bankruptcy trust fund has been established. Accordingly, claims involving this equipment are not resolved through a trust fund claims process in the same manner as claims against companies that reorganized under Chapter 11 specifically due to asbestos liability.

Plaintiffs have alleged in asbestos cases that valve products of this era were associated with asbestos-containing sealing components. Whether and to what degree Lawler has faced adverse judgments, settlements, or other litigation outcomes varies by case; this article does not represent any specific outcome as established legal fact.

For individuals who worked with Lawler valves and were also exposed to asbestos-containing products from other manufacturers — a common circumstance in shipboard and institutional environments — separate trust fund claims may be available through those manufacturers’ established asbestos trusts.

If you or a family member worked with or around Lawler thermostatic or temperature-regulating valves and has since been diagnosed with mesothelioma, asbestosis, or asbestos-related lung cancer, legal options may be available.

Key points to understand:

  • Lawler Manufacturing Company has been associated with asbestos litigation but does not operate a dedicated asbestos bankruptcy trust fund. Claims would be pursued through direct civil litigation rather than a trust claims process.
  • Exposure involving valves frequently also involves asbestos-containing gaskets, packing, and pipe insulation from other manufacturers, which may be relevant to identifying all responsible parties.
  • Workers exposed to multiple asbestos-containing products — as was common aboard Navy ships and in institutional plants — may be eligible to file claims against multiple responsible parties, including manufacturers with established trust funds.
  • The long latency period for asbestos-related disease means that exposure from decades ago can give rise to claims today.
  • An attorney specializing in asbestos litigation can review your work history, identify relevant products and manufacturers, and advise on available legal remedies.

Documentation of your work history — including employers, job sites, job titles, ship assignments, and any product names or model numbers you can recall — is valuable when consulting with an attorney and should be preserved.