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ASME B31.3-2010 pdf download

ASME B31.3-2010 pdf download.Process Piping.
300 GENERAL STATEMENTS (a) Identification. This Process Piping Code is a Section ofthe American Society ofMechanical Engineers Code for Pressure Piping, ASME B31, an American National Standard. It is published as a separate docu- ment for convenience of Code users. (b) Responsibilities (1) Owner. The owner of a piping installation shall have overall responsibility for compliance with this Code, and for establishing the requirements for design, construction, examination, inspection, and testing which will govern the entire fluid handling or process installation of which the piping is a part. The owner is also responsible for designating piping in certain fluid services and for determining ifa specific Quality System is to be employed. [See paras. 300(d)(4), (d)(5), (e), and Appendix Q.] (2) Designer. The designer is responsible to the owner for assurance that the engineering design of pip- ing complies with the requirements of this Code and with any additional requirements established by the owner. (3) Manufacturer, Fabricator, and Erector. The manu- facturer, fabricator, and erector of piping are responsible for providing materials, components, and workmanship in compliance with the requirements of this Code and of the engineering design. (4) Owner’s Inspector. The owner’s Inspector (see para. 340) is responsible to the owner for ensuring that the requirements of this Code for inspection, examina- tion, and testing are met. If a Quality System is specified by the owner to be employed, the owner’s Inspector is responsible for verifying that it is implemented. (c) Intent of the Code (1) It is the intent of this Code to set forth engi- neering requirements deemed necessary for safe design and construction of piping installations.
(4) Piping elements should, insofar as practicable, conform to the specifications and standards listed in this Code. Piping elements neither specifically approved nor specifically prohibited by this Code may be used provided theyare qualified foruse as setforthin applica- ble Chapters of this Code. (5) The engineering design shall specify any unusual requirements for a particular service. Where service requirements necessitate measures beyond those required by this Code, such measures shall be specified by the engineering design. Where so specified, the Code requires that they be accomplished. (6) Compatibility of materials with the service and hazards from instability of contained fluids are not within the scope of this Code. See para. F323. (d) Determining Code Requirements (1) Code requirements for design and construction include fluid service requirements, which affectselection and application of materials, components, and joints. Fluid service requirements include prohibitions, limita- tions, and conditions, such as temperature limits or a requirement for safeguarding (see para. 300.2 and Appendix G). Code requirements for a piping system are the most restrictive of those which apply to any of its elements. (2) For metallic piping not in Category M, High Pressure, or High Purity Fluid Service, Code require- ments are found in Chapters I through VI (base Code), and fluid service requirements are found in (a) Chapter III for materials (b) Chapter II, Part 3, for components (c) Chapter II, Part 4, for joints (3) For nonmetallic piping and piping lined with nonmetals, all requirements are found in Chapter VII. (Paragraph designations begin with “A.”) (4) For piping in a fluid service designated by the owner as Category M (see para. 300.2 and Appendix M), all requirements are found in Chapter VIII. (Paragraph designations begin with “M.”)
300.2 Definitions Some ofthe terms relating to pipingare defined below. For welding, brazing, and soldering terms not shown here, definitions inaccordance withAWS Standard A3.0 3 apply. air-hardened steel: a steel that hardens during cooling in air from a temperature above its transformation range. anneal heat treatment: see heat treatment. arc cutting: a group of cutting processes wherein the severing or removing of metals is effected by melting with the heat of an arc between an electrode and the base metal. (Includes carbon-arc cutting, metal-arc cut- ting, gas metal-arc cutting, gas tungsten-arc cutting, plasma-arc cutting, and air carbon-arc cutting.) See also oxygen-arc cutting. arc welding (AW): a group of welding processes which produces coalescence of metals by heating them with an arc or arcs, with or withoutthe applicationofpressure and with or without the use of filler metal. assembly: the joining together of two or more piping components by bolting, welding, bonding, screwing, brazing, soldering, cementing, or use of packing devices as specified by the engineering design. automatic welding: welding with equipment which per- forms the welding operation without adjustment of the controls by an operator. The equipment may or may not perform the loading and unloading of the work. backing filler metal: see consumable insert.

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