The Merit Brass half coupling is a class 150 stainless steel 304 cast pipe fitting with female National Pipe Taper (NPT) threads on one end and a plain end on the other for connecting and extending different types of pipes. It has NPT threads on one end for creating a tighter seal than straight threads and an unthreaded end on the other for welding to pipes. Made of stainless steel 304, the lower carbon content of this half coupling minimizes harmful carbide precipitation during welding, ensuring higher corrosion resistance than 302 grade steel. This class 150 fitting meets standards ANSI B1.20.1 and ISO 49 for quality assurance. Class is a standard relating to tolerance, construction, dimension, and wall thickness, but it is not a direct measurement of maximum working pressure. Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness). Merit Brass manufactures pipe nipples following ISO 9001 standards for quality assurance. Family-owned since 1937, the company is based in Cleveland, OH. Merit Brass distributes pipe fittings to the United States and Canada.