ASME B31.3:2012 pdf download

ASME B31.3:2012 pdf download.Process Piping
(a) Identification. This Process Piping Code is a Sectionofthe AmericanSociety 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 that will govern the entire fluid handling or process installa- tion of which the piping is a part. The owner is also responsible for designating piping in Category D, Category M, High Pressure, and High Purity Fluid Services, and for determining if a specific Quality System is to be employed. [See paras. 300(d)(4) through (7) 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. (2) This Code is not intended to apply to the opera- tion, examination, inspection, testing, maintenance, or repair of piping that has been placed in service. The provisions of this Code may optionally be applied forthose purposes, although other considerations may also be necessary. (3) Engineering requirements of this Code, while considered necessary and adequate for safe design, gen- erally employ a simplified approach to the subject. A designer capable of applying a more rigorous analysis shall have the latitude to do so; however, the approach must be documented in the engineering design and its validity accepted by the owner. The approach used shall provide details of design, construction, examination, inspection, and testing for the design conditions of para. 301, with calculations consistent with the design criteria of this Code. (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 setforthinapplica- 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.
bonder: one who performs a manual or semiautomatic bonding operation. bondingoperator: one who operates machine or automatic bonding equipment. bonding procedure: the detailed methods and practices involved in the production of a bonded joint. bondingprocedure specification (BPS): the documentwhich lists the parameters to be used in the construction of bonded joints in accordance with the requirements of this Code. borescopic examination: a visual examination aided by a mechanical or electromechanical device to examine the inside diameter of inaccessible welds. branch connection fitting: an integrally reinforced fitting welded to a run pipe and connected to a branch pipe by a buttwelding, socket welding, threaded, or flanged joint; includes a branch outlet fitting conforming to MSS SP-97. brazing: a metal joining process wherein coalescence is produced by use of a nonferrous filler metal having a melting point above 427°C (800°F), but lower than that ofthe base metals beingjoined. The filler metal is distrib- uted between the closely fitted surfaces of the joint by capillary attraction.