Weil-McLain 68 Series cast-iron boilers — Weil-McLain

Product Description

Weil-McLain 68 Series cast-iron boilers were manufactured under the Weil-McLain name and supplied throughout the period when asbestos was the routine sealing and insulating material in boiler service. The Weil-McLain catalog reached American industrial worksites, including power generation facilities, refineries, paper mills, shipyards, and major institutional construction projects.

According to asbestos litigation records, Weil-McLain 68 Series cast-iron boilers were supplied to American industry through the period when asbestos was treated as the routine sealing and insulating material for high-temperature service. Weil-McLain built its market position around durability and reliability under demanding conditions — the same operating envelope that drove asbestos use across the boiler category well into the late 1970s.

Asbestos Content

Court filings document allegations that Weil-McLain 68 Series cast-iron boilers incorporated asbestos in one or more of the structural roles common to boiler of the era:

Refractory and insulating brick — High-temperature furnace linings, baffle plates, and burner-front components frequently used asbestos-bearing refractory and insulating materials.

External thermal insulation — Asbestos block, blanket, and magnesia pipe-and-vessel insulation was applied to steam drums, headers, and adjacent piping in conjunction with the boiler assembly.

Internal gaskets and packing — Manhole and handhole gaskets, soot-blower lance packing, and boiler tube seals were routinely manufactured from compressed asbestos sheet or braided asbestos packing.

Replacement parts and service literature — Plaintiffs alleged that Weil-McLain’s own service manuals and parts catalogs directed maintenance crews to install asbestos-bearing components during normal repair work.

The asbestos in these components was not unique to Weil-McLain; the materials in question were industry-standard well into the 1970s. The relevance to litigation lies in the volume of Weil-McLain 68 Series cast-iron boilers installed across American worksites and the frequency with which those components were disturbed during ordinary maintenance.

How Workers Were Exposed

Workers most likely to have encountered asbestos through Weil-McLain 68 Series cast-iron boilers include those whose trades brought them into routine contact with the equipment:

  • Boilermakers — assembly, tube replacement, refractory repair, and outage work
  • Pipefitters and steamfitters — tying boilers into steam and water systems
  • Insulators — applying and removing asbestos block, blanket, and magnesia insulation on boiler bodies and piping
  • Power-plant operators and maintenance mechanics — routine inspection, soot-blower service, and tube-leak repair
  • Shipyard workers and Navy machinist’s mates — installing and overhauling marine boilers

Court filings document that bystander and take-home pathways were also common. Workers who did not directly handle Weil-McLain 68 Series cast-iron boilers but who shared confined work areas with those who did were alleged to have inhaled the same airborne fibers. Family members were exposed through fibers carried home on contaminated work clothing — a pathway recognized in occupational medicine and asbestos litigation as take-home or secondary exposure.

The latency period for asbestos-related diseases — mesothelioma, asbestosis, lung cancer, and pleural disease — ranges from roughly ten to fifty years between initial exposure and diagnosis. Workers exposed through Weil-McLain 68 Series cast-iron boilers during the 1940s through the early 1980s may only now be receiving diagnoses tied to that occupational history.

The current trust-fund and litigation status for products in the Weil-McLain catalog is summarized on the manufacturer reference page linked at the top of this article. Where a Section 524(g) trust exists, claims may be filed in parallel with civil litigation against other defendants whose products contributed to the same exposure history. Where no trust exists, claims are pursued through the civil court system. Statute-of-limitations rules vary by state and disease type; the limitations clock generally begins at the time of diagnosis rather than the time of exposure.

Individuals who worked with or around Weil-McLain 68 Series cast-iron boilers and have been diagnosed with an asbestos-related disease should preserve documentation of employment history, jobsites, and product identification, and consult an attorney experienced in asbestos claims promptly after diagnosis.

Documented Product Identification

The following details are drawn from public asbestos litigation records, manufacturer catalog pages, technical manuals, and corporate history materials. Each item reflects the product as documented in those sources.

Documented asbestos-use period: 1920-1986

Corporate context: Weil-McLain is an unincorporated division of the Marley-Wylain Company, which is a wholly owned subsidiary of the Marley Company. The Marley Co., LLC remains a wholly owned subsidiary of United Dominion Industries, Inc. Principal place of business is Michigan City, IN.

Documented asbestos components: asbestos rope, corrugated air cell insulation, millboard liners, gaskets, mine cement, furnace cement, retort furnace cement.

Documented asbestos-component suppliers: the public records lists the following external suppliers of asbestos-bearing packing, gaskets, and seals used in conjunction with this manufacturer’s equipment — Johns-Manville, Grant Wilson (Chicago, IL), Raybestos-Manhattan, Chicago Wilcox Mfg. Co. (So. Holland, IL), Alert Manufacturing & Supply (Norridge, IL), A & M Insulation Co. (Chicago, IL), Gibson-Homans Co. (Twinsburg, OH), Coleman Manufacturing Co. (Everett, ME), Dresser Industries, Wisconsin Gasket & Manufacturing Co., Chambers Gasket & Manufacturing Co..

Industries served: residential heating, small commercial heating.

Documented product lines:

  • Residential & Small Commercial Cast Iron Sectional Boilers. Cast iron sectional boilers designed for residential and small commercial heating applications — asbestos components: asbestos rope, corrugated air cell insulation, millboard liners, gaskets, mine cement, furnace cement, retort furnace cement.

All Weil-McLain asbestos-containing products documented as containing chrysotile only. Asbestos rope came in various forms including braided (1/8 to 1/2 inch thick) and twisted (1/4 inch thick), with corrugated air cell insulation assembled inside boiler jackets.