ASME B31-3:2014 pdf free download – Process Piping
(a) Identification. This Process Piping Code is a Section of the American Society of Mechanical Engineers Code for Pressure Piping, ASME B31, an American National Standard. It is published as a separate docu- ment for convenience of C ode users.
(b) Responsibilities
(1) Ouwner. 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.] Where applicable, the owner shall consider requirements imposed by the authority having jurisdiction regarding the piping installation.
(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) Owmer’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 for those purposes, although other considerations may also be necessary.
(3) The Code generally employs a simplified approach for many of its requirements. A designer capa- ble of applying a more complete and rigorous analysis consistent with the design criteria of this Code shall have the latitude of applying such analysis in the devel- opment of designs and fabrications. The designer shall provide details of design, construction, examination, and testing, along with calculations consistent with the design criteria of this Code. The details shall be docu- mented in the engineering design and their validity accepted by the owner.
(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 they are qualified for use as set forth in 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 affect selection 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 Appendix G). Code requirements for a piping system are the most restrictive of those that apply to any of its elements.