Lunkenheimer Company, headquartered in Cincinnati, Ohio, was a major manufacturer of bronze and iron valves, pipe fittings, and steam system components supplying the US Navy with seawater service valves, auxiliary steam valves, and general ship plumbing fittings throughout World War II and the Cold War. Lunkenheimer’s line of globe valves, gate valves, and stop check valves in bronze construction were widely used in seawater systems, auxiliary steam distribution, and general ship plumbing where their corrosion-resistant bronze construction was specified.

Asbestos in Lunkenheimer Valve Components

Lunkenheimer steam and water service valves used asbestos packing and gaskets as standard sealing components:

  • Valve stem packing — braided asbestos packing in Lunkenheimer globe valve and gate valve stuffing boxes, providing stem sealing in steam and hot water service. Packing replacement when Lunkenheimer valves leaked at the stem was a routine maintenance task performed by Machinist’s Mates and Damage Controlmen throughout the ship’s auxiliary and damage control systems
  • Union and flange gaskets at Lunkenheimer valve connections to the piping system — asbestos sheet gasket material at flanged and union connections in seawater, auxiliary steam, and water service
  • Valve body cover gaskets on Lunkenheimer valve body cover connections — asbestos-containing gaskets at body covers disturbed during internal valve maintenance

Seawater System Applications

Lunkenheimer bronze valves were widely used in seawater service applications where bronze construction provided resistance to saltwater corrosion — seawater cooling system isolation valves, fire main branch valves, and seawater distribution throughout the ship’s sea water systems. The maintenance of seawater system Lunkenheimer valves — packing replacement and gasket maintenance — was performed by Machinist’s Mates and Damage Controlmen responsible for these systems.

Widespread Fleet Distribution

Lunkenheimer’s broad product line covering seawater, water, and auxiliary steam service in bronze construction made their products among the most widely distributed valve brands throughout the Navy fleet — installed in all vessel types from destroyers to carriers in auxiliary system applications where bronze construction was specified. Machinist’s Mates and other engineering ratings performing valve maintenance throughout auxiliary systems encountered Lunkenheimer valves with asbestos packing in routine maintenance operations.

VA Claims

VA presumptive service connection under 38 CFR § 3.309(d) covers asbestos exposure from valve maintenance aboard Navy vessels. Engineering ratings who performed valve packing replacement on Lunkenheimer and other asbestos-packed valves and have since been diagnosed with mesothelioma, asbestosis, or asbestos-related lung cancer may qualify for VA disability benefits.