18Z50 - ESAB Oxweld D-Size Acetylene to 3/4 NPT Station Adaptor

Industrial Acetylene Station Adaptor

The ESAB 18Z50 is a specialized gas fitting designed for professional welding and cutting environments utilizing manifold systems. This adaptor functions as a critical interface between rigid piping infrastructure and gas regulation equipment. Specifically, it converts a 3/4-inch National Pipe Thread (NPT) Male connection to a D-style Acetylene Male connection. This configuration is commonly found in heavy industrial station drops where high-volume gas delivery is required.

Manufactured from high-quality brass, the 18Z50 offers superior resistance to corrosion and mechanical wear, essential for components subjected to the pressures and handling typical of industrial gas systems. The precision machining of the threads ensures a tight, leak-free seal when installed correctly with appropriate thread sealants (for the NPT side) and seating surfaces. This component is part of the broader ecosystem of Oxweld and Purox gas equipment, known for reliability in structural fabrication, shipyards, and manufacturing plants.

Proper selection of fittings is paramount for safety in oxy-fuel systems. The D-Acetylene designation refers to a specific connection size often used on larger station outlets to prevent cross-connection with incompatible gases. Users must verify that their regulator inlet or hose connection matches the D-style profile before installation. This adaptor allows for the seamless integration of standard piping drops into a safe and functional welding station.