Tubing

Tubing is used to transport fluids and gases in a variety of pneumatic, hydraulic, and process applications. Tubes are usually cylindrical in shape, but may have round, rectangular, or square cross-sections. Tubing is specified in terms of outside diameter (OD) and, depending upon the material of construction, either rigid or flexible. There are several basic types of products. Metal tubes are made of aluminum, brass, bronze, copper, steel, stainless steel, or precious metals. Plastic tubes are made of ethyl vinyl acetate (EVA), polyamides, polyethylene (PE), polyolefin, polypropylene (PP), polyurethane (PU), polytetrafluoroethylene (PTFE), polyvinyl chloride, or polyvinylidene fluoride (PVDF). Rubber tubes are made of natural compounds such as polyisoprene or synthetic materials such as silicone. Glass and quartz tubes are commonly available. Electrical tubing is designed to contain wires and minimize the risks posed by electrical hazards. Fiberglass tubing is impervious to many caustics and suitable for extreme temperatures. Mechanical tubing includes stronger cross-sections and is designed for structural applications. Medical tubing is usually sterilized and relatively small in diameter.

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