The fitting that makes it easy to disassemble threaded piping is?

Prepare for the NCCER Boilermaker Test. Use flashcards and multiple-choice questions with hints and explanations. Get ready for your certification!

The fitting that facilitates easy disassembly of threaded piping is the union. A union is specifically designed to allow two pipes or fittings to be joined together in a way that they can be easily taken apart without needing to unscrew any connections or fittings. This makes unions particularly valuable in situations where maintenance, repair, or replacement of piping is necessary, as they can be easily pulled apart with minimal tools or effort.

In contrast, while a coupling connects two pieces of pipe, it is not intended for easy disassembly, as it requires rotation of the entire connected pipe sections to remove. A tee fitting is used to create a junction between three pipes, allowing for branching, but it does not aid in disassembly of threaded connections. A nipple serves as a short piece of pipe with threads on both ends to connect two fittings, but like a coupling, it requires the unscrewing of the threaded connections for disassembly, thus lacking the inherent ease of a union.

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