86W41 - B-Size Left-Hand Brass Plug with Chain Assembly

Industrial Grade Gas System Protection

The Western Enterprises 86W41 is a precision-engineered brass plug and chain assembly designed for professional gas distribution systems. In the complex environment of industrial gas manifolds and piping, maintaining the integrity of every connection point is paramount. This component is specifically manufactured to seal B-Size (9/16"-18) outlets, utilizing a Left-Hand (LH) thread configuration that is the industry standard for fuel gases such as Acetylene, Propane, and MAPP gas. By adhering to these strict dimensional standards, the 86W41 ensures that fuel lines cannot be accidentally connected to incompatible oxygen or inert gas systems, maintaining a high level of facility safety.

Material Quality and Durability

Constructed from high-quality free-machining brass, this plug offers superior resistance to corrosion and mechanical wear. Brass is the material of choice for fuel gas fittings due to its non-sparking properties and durability under varying pressures. The machined threads are cut to tight tolerances, ensuring a positive seal that prevents gas leakage when the outlet is not in use. This is particularly critical in manifold systems where multiple drops may be present, but not all are simultaneously active. A leaking outlet represents not only a financial loss but a significant safety hazard.

Integrated Retention System

One of the standout features of the 86W41 is its integrated chain and ring assembly. In busy industrial settings, small components like plugs are easily misplaced or dropped during changeovers. The attached chain ensures that the plug remains tethered to the equipment—whether it be a regulator, manifold station, or hose end—guaranteeing it is always at hand when needed. This simple addition significantly reduces replacement costs and downtime associated with searching for lost parts.

Technical Specifications

This assembly features a male plug designed to mate with standard B-Size female fittings. It is rated for standard oxy-fuel operating pressures and is compatible with a wide range of fuel gases. It is an essential component for MRO (Maintenance, Repair, and Operations) inventories in welding shops, fabrication plants, and shipyards.