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CODES AND STANDARDS USED IN PIPING ENGINEERING



WHY IT IS REQUIRED ?
  • Selection of proper material and detail out the material specification.
  • Standardization can and does reduce cost, inconvenience and confusion that result from unnecessary and undesirable difference in systems.
  • One of main objective of each code is to ensure public and industrial safety.

 DEFINITIONS:-
Industry standard are published by professional societies, committees and trade organizations. It can be broadly classified into the following categories......
  • CODE
  • STANDARDS
  • RECOMMENDED PRACTICES

CODE :-
A group of general rules r systematic procedures for design, fabrication, installation and inspection prepared in such a manner that it can be adopted by legal jurisdiction and made into law.

 STANDARDS :-
Documents prepared by a professional group or committee which are believed to be good and proper engineering practices and which contain mandatory requirements.

 RECOMMENDED PRACTICES:-
Documents prepared by a professional group or committee indicating good engineering practices but which are optional.

 STANDARDS FOR PIPING DESIGN:-
  • ASMEB31.1: Powerpiping
  • ASME B31.2: Fuel Gas piping.
  • ASME B31.3: Process piping.
  • ASME B31.4: Pipeline Transportation system for liquid Hydrocarbon and other liquids
  • ASMEB31.5: Refrigeration piping.
  • ASME B31.8: Gas Transmission and Distribution piping.
STANDARDS FOR PIPING COMPONENTS:-

 PIPES:
  • B36.10M: Welded and Seamless Wrought Steel Pipes
  • B36.19M: Stainless Steel Pipes
Flanges:-
  • B16.5: Steel Pipe flanges and flanged fittings
  • B16.47: Large diameter steel flanges
  • B16.48: Steel Line Blanks
  • API 5L: Line Pipe.
FITTINGS:-
  • B 16.9: Factory Made Wrought Steel Butt- Welding Fitting
  • B 16.11: Forged Steel Fittings, Socket-Welding & Threaded

VALVES:-
  • API 594: Wafer And Wafer Lug And Double Flanged Check Valve
  • API 599: Metal Plug Valves-Tanged & Welding Ends
  • API 600: Steel Gate Valves - Flanged and Butt Welding Ends, Bolted and Pressure Seal Bonnet
  • API 6D: Pipe line valves, End closures,Counselors end swivels
  • API 593:Ductile Iron Plug Valves- Flanged ends.
  • API 600: Steel gate valves.
  • BS 1414: Steel Wedge Gate Valves flanged Cud Butt Welding Ends)
  • BS 1868: Steel Check Valves) flanged & Butt Welding Ends)
  • BS 1873: Steel Globe, Globe stop cud Check Valves )Flanged & butt welding ends.
  • BS 5351: Steel Ball Valves
  • BS/EN 593: Specification for Butterfly valves
  • BS 5352:Steel Wedge Gate, Globe and Check Valves 50mm and Smaller
  • BS 5353:Steel Plug Valves
  • Bd 6364:Valves For Cryogenic Services.
GASKETS:-
  • B 16.53:Metallic Gaskets for Steel pipe flanges, ring joint, Spirel-Wound, and gasketed.
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