Product Description
Kunkle Valve Company is publicly identified in U.S. asbestos litigation as a long-established American manufacturer of ASME Code safety and pressure-relief valves. Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that Kunkle safety valves and relief valves were specified onto steam boilers, air receivers, hot-water heaters, process vessels, and pressurized tanks throughout U.S. industry from the 1940s through the early 1980s — spanning fossil and industrial power stations, refineries, chemical plants, paper mills, textile mills, food-processing facilities, and shipboard auxiliary steam systems.
Court filings allege that the safety and relief function required tight metal-to-metal seat sealing supplemented by asbestos-bearing gasketing at bonnet, cap, and flange joints, and that ordinary set-pressure testing and shop overhaul disturbed those asbestos components during routine maintenance cycles.
Asbestos Content
Publicly filed complaints alleged that Kunkle safety and pressure-relief valves incorporated asbestos in the following structural roles:
- Compressed asbestos sheet body-to-bonnet and cap gaskets installed between the valve body and the spring cap, allegedly scraped clean during disassembly for seat lapping and spring adjustment.
- Spiral-wound gaskets with asbestos filler installed at flanged inlet and outlet connections on higher-pressure Kunkle valves.
- Asbestos-containing seat and disc sealing components in certain valve configurations, allegedly disturbed during lapping and re-machining operations.
- External thermal insulation applied by insulators to valve bodies and adjacent piping on hot service, allegedly stripped during overhaul.
Workers Exposed
Publicly filed complaints identified the trades most frequently alleged to have encountered asbestos through Kunkle valves:
- Boilermakers installing and testing safety valves on fired and unfired pressure vessels.
- Pipefitters and steamfitters tying Kunkle relief valves into steam, condensate, and process headers.
- Power plant workers performing set-pressure verification and overhaul during outages.
- Machinists and millwrights lapping seats and reworking spring assemblies in shop.
- Industrial maintenance mechanics performing shop repair on removed valves.
If You Worked With Kunkle Safety and Relief Valves
If you worked with or around Kunkle safety or pressure-relief valves on industrial boilers, refinery process vessels, or shipboard auxiliary steam systems and have been diagnosed with mesothelioma or another asbestos-related disease, preserve your employment history and any product-identification records available.
Free, confidential case evaluation: Speak with O’Brien Law Firm — (314) 936-2956