ABSTRACT

Mechanical joints are pipe joints other than welded, brazed or soldered joints (Chapter 15) or flange joints (Chapter 17). Mechanical joints are versatile specialized fittings, developed and optimized for specific applications. They include swage fittings, easily assembled and disassembled, used on tubing systems; grooved couplings common in water lines and fire protection piping systems; quick disconnects used on hose ends, braided hose used at pump-pipe nozzles, flared tube fittings, and threaded joints common in small bore piping (NPS 2 and smaller).