Which statement is true regarding pipe fittings?

Which statement is true regarding pipe fittings?

• A. They can be flanged, threaded or welded
• B. They are always made of plastic
• C. They are never connected by threads
• D. They come only in odd sizes

Answer: (A)

Pipe fittings connect pipes using several common methods, chosen to suit pressure, temperature, material, and maintenance needs. Flanged fittings are bolted to matching flanges with a gasket, allowing easy disassembly and handling higher pressures or larger diameters. Threaded fittings screw onto pipes, giving a compact, simple joint ideal for smaller diameters and moderate pressures. Welded fittings are joined by fusion to the pipe, producing a continuous, leak-tight joint suited for high-pressure, high-integrity systems. Because fittings come in metals, plastics, and composites, they aren’t limited to one material. They also don’t come only in odd sizes; standard sizes cover a range of both even and odd nominal diameters.

Pipe fittings connect pipes using several common methods, chosen to suit pressure, temperature, material, and maintenance needs. Flanged fittings are bolted to matching flanges with a gasket, allowing easy disassembly and handling higher pressures or larger diameters. Threaded fittings screw onto pipes, giving a compact, simple joint ideal for smaller diameters and moderate pressures. Welded fittings are joined by fusion to the pipe, producing a continuous, leak-tight joint suited for high-pressure, high-integrity systems. Because fittings come in metals, plastics, and composites, they aren’t limited to one material. They also don’t come only in odd sizes; standard sizes cover a range of both even and odd nominal diameters.