What does the symbol for a socket weld 90-degree elbow represent?

• A. Pipe connection
• B. Socket weld 90-degree elbow
• C. Reducing fitting
• D. End cap

Answer: (B)

The symbol for a socket weld 90-degree elbow specifically denotes a fitting that allows for changes in direction within a piping system. This type of elbow connects two sections of pipe at a right angle, facilitating fluid flow around corners or bends in the piping layout. The term "socket weld" refers to the method of joining the fitting to the pipe, where the pipe is inserted into a recessed area within the elbow and then welded, creating a strong, seamless connection.

Understanding this symbol is crucial for pipefitters as it informs them of the specific fitting type they are working with and its intended function in the piping system. It aids in the accurate planning and installation of piping layouts, ensuring that turns are made correctly and efficiently while maintaining the integrity of the flow.