A barrel nipple is a type of pipe fitting that is used to connect two pipes or fittings together. It is a short length of pipe with male threads on both ends, allowing it to be screwed into a female threaded pipe or fitting. The main purpose of a barrel nipple is to create a secure and leak-proof connection between two pipes.

Barrel nipples are commonly used in plumbing and piping systems for various applications. They provide a convenient method for extending the length of pipes or connecting different components within a system. Barrel nipples are available in different materials such as stainless steel, brass, and black iron, making them suitable for a wide range of industries and environments.

The male threads on both ends of the barrel nipple ensure a tight and reliable connection, preventing leakage and ensuring the smooth flow of fluids or gases. They are often used in water supply systems, HVAC systems, gas pipelines, and industrial applications where a secure and durable connection is required.

In summary, a barrel nipple is a pipe fitting that facilitates the connection between two pipes or fittings. Its primary function is to provide a strong and leak-proof joint, making it an essential component in various plumbing and piping systems.