Within industry, piping is a system of pipes used to convey fluids (liquids and gases) from one location to another. The engineering discipline of piping design studies the efficient transport of fluid.
Industrial process piping can be manufactured from wood, fiberglass, glass, steel, aluminum,plastic , copper, and concrete. The in-line components, known as fittings, valves, and other devices, typically sense and control thepressure, flow rate and temperature of the transmitted fluid, and usually are included in the field of Piping Design (or Piping Engineering). Piping systems are documented in piping and instrumentation diagrams (P&IDs). If necessary, pipes can be cleaned by the tube cleaning process.

The material with which a pipe is manufactured often forms as the basis for choosing any pipe. Materials that are used for manufacturing pipes include:
• Carbon steel
• ASTM A252 Spec Grade 1, Grade 2, Grade 3 Steel Pile Pipe
• Low temperature service carbon steel
• Stainless steel
• Nonferrous metals, e.g. cupro-nickel
• Nonmetallic, e.g. tempered glass

There are certain standard codes that need to be followed while designing or manufacturing any piping system. Organizations that promulgate piping standards include:
• ASME - The American Society of Mechanical Engineers - B31 series
• ASME B31.1 Power piping (steam piping etc.)
• ASME B31.3 Process piping
• ASME B31.4 Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids
• ASME B31.5 Refrigeration piping and heat transfer components
• ASME B31.8 Gas transmission and distribution piping systems
• ASME B31.9 Building services piping
• ASME B31.11 Slurry Transportation Piping Systems (Withdrawn, Superseded by B31.4)
• ASME B31.12 Hydrogen Piping and Pipelines
• ASTM - American Society for Testing and Materials
• ASTM A252 Standard Specification for Welded and Seamless Steel Pipe Piles[10]
• API - American Petroleum Institute
• API 5L Petroleum and natural gas industries—Steel pipe for pipeline transportation systems
• EN 13480 - European metallic industrial piping code
• EN 13480-1 Metallic industrial piping - Part 1: General
• EN 13480-2 Metallic industrial piping - Part 2: Materials
• EN 13480-3 Metallic industrial piping - Part 3: Design and calculation
• EN 13480-4 Metallic industrial piping - Part 4: Fabrication and installation
• EN 13480-5 Metallic industrial piping - Part 5: Inspection and testing
• EN 13480-6 Metallic industrial piping - Part 6: Additional requirements for buried piping
• PD TR 13480-7 Metallic industrial piping - Part 7: Guidance on the use of conformity assessment procedures
• EN 13480-8 Metallic industrial piping - Part 8: Additional requirements for aluminium and aluminium alloy piping
• EN 1993-4-3 Eurocode 3 — Design of steel structures - Part 4-3: Pipelines
• AWS - American Welding Society
• AWWA - American Water Works Association
• MSS – Manufacturers' Standardization Society
• ANSI - American National Standards Institute
• NFPA - National Fire Protection Association
• EJMA - Expansion Joint Manufacturers Association



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