What is the term for a joint made by bolting together a pair of flanged ends?

A joint made by bolting together a pair of flanged ends is known as a flanged joint. This type of connection is commonly utilized in piping systems, where flanges (which are flat pieces of metal) are bolted together to create a strong and durable seal. Flanged joints allow for easy assembly and disassembly, facilitating maintenance or replacement of pipe sections without the need for cutting or extensive labor.

This method of joint construction is particularly advantageous for high-pressure applications, as flanged joints can be designed to withstand significant stress and prevent leaks. The use of gaskets between the flanges further enhances the seal, ensuring that fluids or gases do not escape.

In contrast, the other options—such as welded joints, which create a permanent bond through the melting and fusing of materials, or threaded and soldered joints, which involve different methods of connecting pipes and fittings—do not accurately describe the process of bolting flanged ends together. Each of those methods has its own specific applications and advantages, but they do not provide the same level of convenience and ease of maintenance that flanged joints offer.