What is a common feature of socket welds used in piping?

Socket welds are a type of permanent joint commonly used in piping systems, particularly for small-diameter pipes. This joining method involves inserting the pipe into a recessed area or socket of a fitting and then welding around the joint. One of the key characteristics of socket welds is that they create a strong, permanent connection, which is essential for maintaining the integrity of the system under various operating conditions. This ensures that the joint can withstand high pressure and temperature fluctuations typically encountered in industrial applications.

In contrast to temporary connections, socket welds do not allow for disassembly without cutting the pipe, making them a long-term solution for piping systems. This feature is particularly beneficial in applications where vibrations, movement, or thermal expansion may be a concern, as socket welds provide a reliable seal that helps prevent leaks. Understanding this aspect is crucial for choosing the right welding method for specific applications in power engineering and related fields.