Which component is NOT one of the basic parts of a torch handle?

The basic parts of a torch handle typically include components that are essential for the operation and control of the torch's flame. The correct response identifies that control valves, while critical for regulating the flow of gas and ensuring safety during operation, are not part of the torch handle itself. The torch handle usually consists of the barrel and tubes that form the structure and pathway for the gas, torch threads that allow for connecting various components, and the torch head, which is where combustion occurs.

The barrel and tubes play a significant role as they channel the gas from the tank to the torch head, allowing for ignition. The threads are important for secure connections, ensuring that parts fit together properly without leaks. The torch head is essential since it incorporates the nozzle through which the flame emits. Therefore, while control valves are vital for functionality and safety, they belong to the system as a whole rather than being a component of the handle specifically.