Pipe (fluid conveyance)

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Tubular section or hollow cylinder used to convey substances

For other uses, see Pipe (disambiguation).

A pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids. It can also be used for structural applications; hollow pipe is far stiffer per unit weight than solid members.

Uses

Pipes are commonly used in the following applications:

• Plumbing
• HVAC (Heating, Ventilation, and Air Conditioning)
• Oil and gas industry
• Water supply network
• Sewage
• Irrigation
• Fire sprinkler system
• Structural applications

Materials

Pipes can be made from a variety of materials, including:

• Steel
• Copper
• Plastic
• Concrete
• Ductile iron
• Ceramic

Manufacturing

Pipes are manufactured by various processes, including:

• Seamless
• Welded
• Casting

Pipe fittings

Pipe fittings are used to connect pipes together and come in various shapes and sizes. Common types include:

• Elbows
• Tees
• Couplings
• Reducer
• Valve

Standards

Pipes are manufactured to various standards, including:

• ASTM
• ISO
• BS
• ANSI

Related pages

• Plumbing
• Pipeline transport
• Pipe fitting
• Tube (fluid conveyance)
• Duct (flow)
• Hose

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