What type of joint is typically used in residential gas piping?

In residential gas piping, a threaded joint is commonly used because it provides a reliable and secure method for connecting pipes. Threaded joints allow for easy assembly and disassembly, which is essential for maintenance and potential future modifications to the gas system. The threading creates a tight seal when the pipes are screwed together, preventing gas leaks, which is critical for safety in residential settings.

Additionally, the materials typically used for residential gas piping, such as black iron pipe or certain types of steel, are designed to accommodate threaded connections. This method is favored because it does not require additional materials, like solder or welding filler, and can be installed without the need for specialized equipment beyond basic plumbing tools.

While other joint types might be suitable in different applications or for various materials, the threaded joint remains the standard in residential gas piping installations due to its effectiveness and ease of use.