What does "T.W." denote in pipefitting abbreviations?

In pipefitting terminology, "T.W." stands for Thermal Weld. This term is used to describe a type of welding process where heat is used to join materials together. Thermal welding is particularly relevant in pipefitting because it allows for the joining of pipes and other components in a way that ensures a strong and durable bond. This method is essential in various applications, particularly in systems that must handle high pressures or temperatures.

Understanding the significance of thermal welding in pipefitting is crucial for maintaining the integrity and safety of piping systems. The process requires specific techniques and considerations depending on the materials being welded, further emphasizing the importance of this abbreviation in the field.