What is the primary purpose of fittings in a gas piping system?

The primary purpose of fittings in a gas piping system is to connect different sections of piping. Fittings come in various shapes and sizes, including elbows, tees, couplings, and adapters, and they play a crucial role in enabling the system to change direction, branch off, or transition between different pipe sizes or types. These connections ensure that the gas can flow continuously through the piping system, thus maintaining the integrity and functionality of the setup. While other aspects, such as measuring flow or preventing leaks, are important in the overall operation and safety of gas systems, the fundamental role of fittings is about connecting the pipes themselves, which facilitates the gas distribution throughout the system.