Buttweld Threaded Barrel Nipple is basically a type of pipe fitting commonly used in industrial settings. The nipple has a tapered, threaded end that connects to another pipe of the same diameter and a smooth, butt-welded end that connects to a larger pipe or fitting. This fitting is designed to provide a smooth bore and a continuous flow path with minimal turbulence, making it ideal for transporting fluids and gases in pipelines. The threaded end of the nipple allows for easy installation and removal of the fitting, while the butt-welded end provides a strong and leak-proof seal.