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B31 Pressure Piping
ASME B31.1
Power Piping
Electric power generating stations geothermal, district heating and cooling system
ASME B31.3
Process Piping
Petroleum refineries, Chemical, pharmaceutical, Textile, Paper, etc. plants
ASME B31.4
Pipeline transportation systems for liquid hydrocarbons
Piping transporting products predominately between plants, terminals and within terminals, pumping, regulation and metering stations
ASME B31.5
Refrigeration piping
Piping for refrigerants and secondary coolants
ASME B31.8
Gas transportation and distribution piping system
Piping transporting products that are predominately gas between sources and terminals including compressor and regulating
ASME B31.9
Building services piping
Piping typically found in industrial institutional, commercial and public buildings
ASME B31.11
Slurry transportation piping systems
Piping transporting aqueous slurries between terminals , pumping regulating stations
ASME B31.1 - Power Piping (Application : All Power Plants)
ASME B31.2 - Fuel Gas Piping
ASME B31.3 - Process Piping (Application : Refineries & Chemical Plants)
ASME B31.4 - Pipeline Transportation System for Liquid Hydrocarbons & Other Liquids (Application : All Pipelines)
ASME B31.5 - Refrigeration Piping
ASME B31.8 - Gas Transmission & Distribution Piping System (Application : All Pipelines)
ASME B31.9 - Building Services Piping
ASME B31.11 - Slurry Transportation Piping System
ASME B31.G - Manual for determining the remaining strength of Corroded Piping
B 31.1 - Power Piping
B 31.2 - Fuel gas Piping
B 31.3 - Process Piping
B 31.4 - Pipeline transportation for liquids
B 31.5 - Refrigeration Piping and Heat transfer Components
B 31.8 - Gas transportation
B 31.11 - Slurry Transportation
B 31.12 - Hydrogen Piping
B31.1 power piping
B31.3 process piping
B31.4 Pipeline transportation systems for liquid hydrocarbons
B31.1 Power Piping is intended for piping associated with power plants and district heating systems. It also covers geothermal heating systems. Generally it addresses the steam-water loop in the generation application.
B31.2 was the Fuel Gas Piping Code until it was withdrawn in 1988 and responsibility for that piping was assumed by ANSI Z223.1. It was a good design document and although it has been withdrawn ASME makes it available as a reference.
B31.3 Process Piping (once was called the Chemical Plant and Petroleum Refinery Piping Code) is perhaps the Code with the broadest coverage. Because the B31.3 coverage is so broad it has several "fluid categories" to assure the proper degree of rigor is assigned to various types of piping.
B31.4 Liquid Transportation Systems for Hydrocarbons, Liquid Petroleum Gas, Anhydrous Ammonia and Alcohols holds the record for the B31 Code with the longest title. Basically it is a buried pipeline transportation Code for liquid products.
B31.5 Refrigeration Piping is rather self explanatory.
B31.6 was at one time going to be the Chemical Plant Piping Code but the 1974 draft document was so parallel to the existing B31.3 that the decision was taken by B31 Main Committee to fold it into B31.3 before it was published.
B31.7 Nuclear piping was withdrawn after two editions and responsibility was assumed by ASME B&PV Code, Section III, Subsections NA, NB, NC and ND.
B31.8 Gas Transmission and Distribution Piping Systems addresses the transportation of gasses and it too is largely a buried piping Code. The Code of Federal Regulations (49CFR) has assumed the force of law for these types of piping systems.
B31.9 Building Services Piping addressed typical pressure piping systems that are designed to serve commercial and institutional buildings. Basically it addresses systems that require less design and fabrication rigor than does, for example, B31.1. There are various limits on the design parameters (e.g. temperature, pressure, pipe size, etc.) that this Code includes in its scope.
B31.10 Cryogenic Piping Systems was also (like B31.6) in the process of development when the Committee recognized that the 1981 draft was very parallel to B31.3 and the decision was taken to also "fold it into" the B31.3 Code. You can see haw the B31.3 Code grew to have such broad coverage.
B31.11 Slurry Piping Systems is another transportation pipeline Code that applies for the most part to buried piping systems that transport slurries.
B31.12 will be the new Hydrogen Piping System Code when it is released by ASME.
Each of the surviving B31 Pressure Piping Codes includes a scope of what is included and what is explicitly excluded (e.g., B31.1 excludes pulverized coal fuel piping).
31 Code for pressure piping, developed by American Society of Mechanical Engineers - ASME, covers Power Piping, Fuel Gas Piping, Process Piping, Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids, Refrigeration Piping and Heat Transfer Components and Building Services Piping. ASME B31 was earlier known as ANSI B31. B31.1 - 2012 - Power Piping Piping for industrial plants and marine applications. This code prescribes minimum requirements for the design, materials, fabrication, erection, test, and inspection of power and auxiliary service piping systems for electric generation stations, industrial institutional plants, central and district heating plants. The code covers boiler external piping for power boilers and high temperature, high pressure water boilers in which steam or vapor is generated at a pressure of more than 15 PSIG; and high temperature water is generated at pressures exceeding 160 PSIG and/or temperatures exceeding 250 degrees F. B31.2 - 1968 - Fuel Gas Piping This has been withdrawn as a National Standard and replaced by ANSI/NFPA Z223.1, but B31.2 is still available from ASME and is a good reference for the design of gas piping systems (from the meter to the appliance). B31.3 - 2012 - Process Piping Design of chemical and petroleum plants and refineries processing chemicals and hydrocarbons, water and steam. This Code contains rules for piping typically found in petroleum refineries; chemical, pharmaceutical, textile, paper, semiconductor, and cryogenic plants; and related processing plants and terminals. This Code prescribes requirements for materials and components, design, fabrication, assembly, erection, examination, inspection, and testing of piping. This Code applies to piping for all fluids including: (1) raw, intermediate, and finished chemicals; (2) petroleum products; (3) gas, steam, air and water; (4) fluidized solids; (5) refrigerants; and (6) cryogenic fluids. Also included is piping which interconnects pieces or stages within a packaged equipment assembly. B31.4 - 2012 - Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids This Code prescribes requirements for the design, materials, construction, assembly, inspection, and testing of piping transporting liquids such as crude oil, condensate, natural gasoline, natural gas liquids, liquefied petroleum gas, carbon dioxide, liquid alcohol, liquid anhydrous ammonia and liquid petroleum products between producers' lease facilities, tank farms, natural gas processing plants, refineries, stations, ammonia plants, terminals (marine, rail and truck) and other delivery and receiving points. Piping consists of pipe, flanges, bolting, gaskets, valves, relief devices, fittings and the pressure containing parts of other piping components. It also includes hangers and supports, and other equipment items necessary to prevent overstressing the pressure containing parts. It does not include support structures such as frames of buildings, buildings stanchions or foundations Requirements for offshore pipelines are found in Chapter IX. Also included within the scope of this Code are: (A) Primary and associated auxiliary liquid petroleum and liquid anhydrous ammonia piping at pipeline terminals (marine, rail and truck), tank farms, pump stations, pressure reducing stations and metering stations, including scraper traps, strainers, and prover loop; (B) Storage and working tanks including pipe-type storage fabricated from pipe and fittings, and piping interconnecting these facilities; (C) Liquid petroleum and liquid anhydrous ammonia piping located on property which has been set aside for such piping within petroleum refinery, natural gasoline, gas processing, ammonia, and bulk plants; (D) Those aspects of operation and maintenance of liquid pipeline systems relating to the safety and protection of the general public, operating company personnel, environment, property and the piping systems. B31.5 - 2013 - Refrigeration Piping and Heat Transfer Components This Code prescribes requirements for the materials, design, fabrication, assembly, erection, test, and inspection of refrigerant, heat transfer components, and secondary coolant piping for temperatures as low as -320 deg F (-196 deg C), whether erected on the premises or factory assembled, except as specifically excluded in the following paragraphs. Users are advised that other piping Code Sections may provide requirements for refrigeration piping in their respective jurisdictions. This Code shall not apply to: (a) any self- contained or unit systems subject to the requirements of Underwriters Laboratories or other nationally recognized testing laboratory: (b) water piping; (c) piping designed for external or internal gage pressure not exceeding 15 psi (105 kPa) regardless of size; or (d) pressure vessels, compressors, or pumps, but does include all connecting refrigerant and secondary coolant piping starting at the first joint adjacent to such apparatus. B31.8 - 2012 - Gas Transmission and Distribution Piping Systems This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and maintenance of those facilities. B31.8S - 2012 - Managing System Integrity of Gas Pipelines This Standard applies to on-shore pipeline systems constructed with ferrous materials and that transport gas. Pipeline system means all parts of physical facilities through which gas is transported, including pipe, valves, appurtenances attached to pipe, compressor units, metering stations, regulator stations, delivery stations, holders and fabricated assemblies. The principles and processes embodied in integrity management are applicable to all pipeline systems. This Standard is specifically designed to provide the operator (as defined in section 13) with the information necessary to develop and implement an effective integrity management program utilizing proven industry practices and processes. The processes and approaches within this Standard are applicable to the entire pipeline system. B31.9 - 2011 - Building Services Piping This Code Section has rules for the piping in industrial, institutional, commercial and public buildings, and multi-unit residences, which does not require the range of sizes, pressures, and temperatures covered in B31.1. This Code prescribes requirements for the design, materials, fabrication, installation, inspection, examination and testing of piping systems for building services. It includes piping systems in the building or within the property limits. B31.11 - 2002 - Slurry Transportation Piping Systems Design, construction, inspection, security requirements of slurry piping systems. Covers piping systems that transport aqueous slurries of no hazardous materials, such as coal, mineral ores and other solids between a slurry processing plant and the receiving plant. B31.12 - 2011 - Hydrogen Piping and Pipelines Gaseous and liquid hydrogen service and to pipelines in gaseous hydrogen service. B31G - 2009 - Manual for Determining Remaining Strength of Corroded Pipelines A supplement To B31 Code-Pressure Piping
ASME B31.1 is for Power Piping
ASME B31.2 is for Fuel Gas Piping
ASME B31.3 is for Process Piping
ASME B31.1 - Power Piping,
ASME B31.2 - Fuel Gas Piping
ASME B31.3 - Process Piping
ASME B31.4 - Pipeling Transportation System
ASME B31.5 - Refrigeration System
ASME B31.8 - Gas Transmission & Distribution System
ASME B31.9 - Building Services Piping
ASME B31.11 - Slurry Transportation Piping System
ASME B31.8
Pressure Piping system within an identified plant area designed in accordance to ASME B 31.1,ASME B 31.3,ASME B 31.4 ,ASME B 31.8.
mostly these are the most used ASME standards for Piping
B31.3
B31.4
B31.8
ASME 31 is an Amercan standard for preasure piping with many different sub-folders.