ASME B31.4-2016 pdf download

ASME B31.4-2016 pdf download.Pipeline Transportation Systems for Liquids and Slurries.
400 GENERAL STATEMENTS (a) This pipeline transportation systems Code is one of several sections of The American Society of Mechani- cal Engineers Code for Pressure Piping, ASME B31, and it is the responsibility of the user of this Code to select the applicable Section. This Section is published as a separate document for convenience. This Code is intended to apply to pipeline systems transporting liq- uids including, but not limited to, crude oil, condensate, liquid petroleum products, natural gasoline, natural gas liquids, liquefied petroleum gas, carbon dioxide (super- critical), liquid alcohol, liquid anhydrous ammonia, pro- duced water, injection water, brine, biofuels, and slurries. Throughout this Code, these systems will be referred to as liquid pipeline systems. (b) The requirements of this Code are adequate for safety under conditions normally encountered in the operation of liquid pipeline systems. Requirements for all abnormal or unusual conditions are not specifically provided for, nor are all details of engineering and con- struction prescribed. All work performed within the scope of this Code shall comply with the safety stan- dards expressed or implied. (c) The primary purpose of this Code is to establish requirements for safe design, construction, inspection, testing, operation, and maintenance of liquid pipeline systems for protection of the general public and operating company personnel, as well as for reasonable protection of the piping system against vandalism and accidental damage by others, and reasonable protection of the environment. (d) This Code is concerned with employee safety to the extent that it is affected by basic design, quality of materials and workmanship, and requirements for construction, inspection, testing, operation, and mainte- nance of liquid pipeline systems. Existing industrial safety regulations pertaining to work areas, safe work practices, and safety devices are not intended to be sup- planted by this Code. (e) The designer is cautioned that the Code is not a design handbook. The Code does not do away with the 1 need for the engineer or competent engineering judg- ment. The Code generally employs a simplified approach for many of its requirements. (1) For design and construction, a designer may choose to use a more complete and rigorous analysis to develop design and construction requirements. When the designer decides to take this approach, the designer shall provide details and calculations demonstrating design, construction, examination, and testing are con- sistent with the criteria of this Code. These details shall be adequate for the operating company to verify the validity of the approach and shall be approved by the operating company. The details shall be documented in the engineering design. (2) For operation and maintenance, the operating company may choose to use a more rigorous analysis to develop operation and maintenance requirements. When the operating company decides to take this approach, the operating company shall provide details and calculations demonstrating that such alternative practices are consistent with the objectives of this Code. The details shall be documented inthe operating records and retained for the lifetime of the facility. (f) This Code shall not be retroactive or construed as applying to piping systems installed before the date of issuance shown on the document title page insofar as design, materials, construction, assembly, inspection, and testing are concerned. It is intended, however, that the provisions of this Code shall be applicable within 6 months after date ofissuance to the relocation, replace- ment, and uprating or otherwise changing of existing piping systems; and to the operation, maintenance, and corrosion control of new or existing piping systems. After Code revisions are approved by ASME and ANSI, they may be used by agreement between contracting parties beginning with the date of issuance. Revisions become mandatory or minimum requirements for new installations 6 months after date of issuance except for piping installations or components contracted for or under construction prior to the end of the 6-month period.