• Pipe is a hollow tube whose primary function is to transport material. Meets specific published size
standards.• Fittings are connections for joining pipe, changing directions, reducing size of lines, closing lines, draining lines.• Nipple is a piece of pipe cut to length and typically threaded. A nipple may have several types of
ends, see the specials section.• Flanges are steel rings designed to join two sections of a piping system by bolting (to a vessel, pump, valve,
fitting or pipe sections).• Valves are mechanisms to control fluid handling systems.• Starting stopping flow (gate, ball, plug, butterfly).• Regulations flow or throttling (globe, butterfly).• Prevent back blow (check valves).• Relieving regulating pressure (relief valve).
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