ASME B31.3-2020

Process Piping

ASME B31.3 contains requirements for piping typically found in petroleum refineries; chemical, pharmaceutical, textile, paper, semiconductor, and cryogenic plants; and related processing plants and terminals. It covers materials and components, design, fabrication, assembly, erection, examination, inspection, and testing of piping.

ANSI/MSS SP-58-2018

Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation

This Standard Practice establishes an industry accepted basis for Manufacturers, Engineers, Erectors, Purchasers, Inspectors, Draftsmen, and others involved in the Materials, Design, Manufacture, Selection, Application, Inspection, and Installation of pipe hangers and supports and their components for piping systems of all service temperatures.

ASME B31.12-2023

Hydrogen Piping and Pipelines

This Code is applicable to piping and pipelines handling gaseous hydrogen and gaseous hydrogen mixtures and to piping in liquid hydrogen service. This Code is applicable up to and including the joint connecting the piping to associated pressure vessels and equipment but not to the vessels and equipment themselves. It is applicable to the location and type of support elements but not to the structure to which the support elements are attached.

ASME B16.5-2025

Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard

ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard covers pressure-temperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flanges and flanged fittings. Included are: (1) flanges with rating class designations 150, 300, 400, 600, 900, and 1500 in sizes NPS 1/2 through NPS 24 and flanges with rating class designation 2500 in sizes NPS 1/2 through NPS 12, with requirements given in both metric and U.S. Customary units with diameter of bolts and flange bolt holes expressed in inch units; (2) flanged fittings with rating class designation 150 and 300 in sizes NPS 1/2 through NPS 24, with requirements given in both metric and U.S. Customary units with diameter of bolts and flange bolt holes expressed in inch units; (3) flanged fittings with rating class designation 400, 600, 900, and 1500 in sizes NPS 1/2 through NPS 24 and flanged fittings with rating class designation 2500 in sizes NPS 1/2 through NPS 12 that are acknowledged in Non-Mandatory Appendix E in which only U.S. Customary units are provided.

CSA Z662-2023

Oil and gas pipeline systems

Thanks to the financial contribution of the Western Regulators Forum (WRF), CSA Group is providing the CSA Petroleum and Natural Gas standards in a downloadable PDF format for no fee to Canadian customers only ( Click for more detail ). If you are not in Canada, please reach out to one of the following licensed CSA Group resellers to purchase these standards or contact your local reseller: • Accuris (formerly S b) Clauses 4 and 7 have been revised to address concerns with gross girth weld strength under- matching and heat affected zone softening, when welding high strength line pipe for a stress-based design pipeline; c) Clause 17, on composite reinforced steel pipelines, has been deleted. A new Clause 17, on hydrogen and hydrogen blend pipeline systems, has been added. d) For hydrogen and renewable gas: i) the scope has been updated to 1) confirm hydrogen and hydrogen blends are included in the standard; 2) confirm that renewable gas is equivalent to wellsite produced gas; and 3) clarify that other gas sources and processes, not just wellsites, can produce hydrogen and renewable gas; ii) a new Clause 17 had been added to formally integrate hydrogen requirements into this Standard; and iii) changes have been made throughout this Standard to aid with handling unique design, material, construction, and operational requirements for pipelines containing hydrogen. e) For safety class: changes have been made in Clauses 4and 10to permit pressure design in accordance with Annex C; i) Annex C has been revised to include a safety class designation approach for a selection of service fluids. Where ii) Annex C is used for pressure design, safety class is used instead of class location, as a basis for defining the maximum allowable hoop stress; iii) Annex C has been revised to include a table that maps the safety class determined according to the Annex onto a class location. The class location derived from this table is used as a basis for identifying the applicable requirements in all other class-location-dependent clauses of this Standard. f) Clause 7.7.4.3 and Table 7.4 have been revised to allow the use of volumetric NDE to replace nick breaks for welding procedure qualification and welder qualification and expand the allowable limits of porosity in nick breaks; g) New content has been added to Clause 10 provide more clarity for the necessary right-of-way activities to continuously address potential hazards to the pipeline system. h) Clause 12.5.7 has been aligned to Clause 5.7.1 in regard to a more prescriptive requirement for records retention to include retention of material test reports for all steel pipe and components. i) Additional content has been added to Clause 12 to address cross bore mitigation. j) Annex B has been revised to include more detailed requirements for performing a risk assessment and quantitative acceptance criteria for safety and environmental risks. k) Annex N has been revised to align with the Annex B revisions. l) Revisions have been made to the requirements for the design pressure and design wall thickness of field cold bends made from steel pipe, where the longitudinal axis is not deflected more than 1.5° in any length along the axis equal to the outside diameter of the pipe. m) A new requirement has been introduced to obtain and retain material test reports for pipe and components. n) Requirements have been expanded for threaded or welded auxiliary connections on blind flanges of various sizes. o) Additional limitations have been imposed on ASTM A105/A105M flanges. p) New requirements have been introduced for induction and cold bends through reference to specifications in CSA Z245.16 and Z245.17. q) New requalification requirements have been introduced for coated pipe in extended storage. r) New requirements have been introduced for hydrovac or air-vac operations. s) Requirements have been updated for fluids containing H2S. t) Requirements have been updated for cyclic pressure in reinforced composite pipelines, and new requirements for pulsation dampeners. u) New requirements have been introduced for use of reinforced composite pipe in gas transmission service. v) New requirement has been added for certain transition pieces to be registered as per CSA B51. w) Requirements have been updated for the repair of defects in polyethylene pipe prior to and during installation. x) Requirements have been updated for materials for elevated temperature service pipelines. y) New requirements have been introduced to address effect of liquid hydrocarbons in pipe wall on heat fusion joining of PE pipe (in other than gas distribution service). z) Requirements have been revised for PE pipe pressure testing (in other than gas distribution service). aa) Requirements have been included for corrosion resistant alloy risers and interconnecting piping for lined pipelines and polyethylene pipelines. bb) Requirements have been updated for sour service pipelines to ensure that Clause 16 will be consistent with the next version of MR0175/ISO15156. The requirements of this Standard are considered to be adequate under conditions normally encountered in the oil and natural gas industry. Specific requirements for abnormal or unusual conditions are not prescribed, nor are all details related to engineering and construction prescribed. It is intended that all work performed within the scope of this Standard meet the standards of safety and integrity expressed or implied herein, and that the requirements of this Standard be applied with due regard to the protection of the environment, which includes land, water, plant life, and animal life. Detailed requirements concerning the protection of the environment are not prescribed. It is expected that changes will be made from time to time, based on new experience and technology. Where necessary, amendments and supplements will be prepared by the Technical Committee and published in accordance with CSA Group practices. CSA Group acknowledges that the development of this Standard was made possible, in part, by the financial support of Natural Resources Canada. This Standard was prepared by the Technical Committee on Petroleum and Natural Gas Industry Pipeline Systems and Materials, under the jurisdiction of the Strategic Steering Committee on Petroleum and Natural Gas Industry Systems, and has been formally approved by the Technical Committee. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope 1.1 This Standard covers the design, construction, operation, maintenance, deactivation, and abandonment of oil and gas industry pipeline systems that convey a) liquid hydrocarbons, including crude oil, multiphase fluids, condensate, liquid petroleum products, natural gas liquids, and liquefied petroleum gas; b) oilfield water; c) oilfield steam; d) liquid or dense phase carbon dioxide; or e) gas. Notes: 1) Vapour phase carbon dioxide and hydrogen pipeline systems fall under Item e). 2) Designers are cautioned that the requirements in this Standard might not be appropriate for gases other than natural gas, manufactured gas, vapour phase carbon dioxide, hydrogen, and synthetic gas. 1.2 The scope of this Standard, as shown in Figures 1.1 and 1.2, includes a) for oil industry fluids, piping and equipment in offshore pipelines, onshore pipelines, tank farms, pump stations, pressure-regulating stations, and measuring stations; b) oil pump stations, pipeline tank farms, and pipeline terminals; c) pipe-type storage vessels; d) carbon dioxide pipelines; e) for gas industry fluids, piping and equipment in offshore pipelines, onshore pipelines, compressor stations, measuring stations, hydrogen blending facilities, and pressure-regulating stations; f) gas compressor stations; and g) gas storage lines and pipe-type and bottle-type gas storage vessels. Notes: 1) Gas industry fluids from renewable natural gas (RNG) and other production facilities are included in Item e). 2) Measuring and pressure-regulating stations that include blended gas industry fluids are included in Item e). 1.3 This Standard does not apply to a) piping with metal temperatures below –70 °C; b) gas piping beyond the outlet of the customer’s meter set assembly (covered by CSA B149.1); c) piping in natural gas liquids extraction plants, gas processing plants (except main gas stream piping in dehydration and all other processing plants installed as part of gas pipeline systems), gas manufacturing plants, industrial plants, and mines; d) oil refineries, terminals other than pipeline terminals, and marketing bulk plants; e) abandoned piping; f) in-plant piping for drinking, make-up, or boiler feed water; g) casing, tubing, or pipe in oil or gas wells, wellheads, separators, production tanks, and other production facilities; h) vent piping for waste gases of any kind operating at or near atmospheric pressure; i) heat exchangers; j) liquefied natural gas systems (covered by CSA Z276); k) liquid fuel distribution systems; l) loading/unloading facilities for tankers or barges; m) refuelling facilities; n) hydrocarbon storage in underground formations and associated equipment (covered by CSA Z341 Series); o) RNG, biogas, and synthetic gas production facilities; and p) hydrogen gas production facilities. 1.4 This Standard is intended to establish essential requirements and minimum standards for the design, construction, operation, pipeline system management, and abandonment of oil and gas industry pipeline systems. This Standard is not an application manual for these activities. It is intended to be used by persons competent to make technical judgments in the areas to which this Standard is being applied including engineering, safety, and environmental protection. Note: Where newly developed materials or processes are used, or unusual conditions are encountered, requirements in addition to those specified in this Standard might be needed. 1.5 The requirements of this Standard are applicable to the operation, maintenance, and upgrading of existing installations. It is not intended that such requirements be applied retroactively to existing installations insofar as design, materials, construction, and established operating pressures are concerned, except as required by Clause 10.7.1 for changes in class location and Clause 10.8.1 for crossings of existing pipelines. 1.6 Unless otherwise stated, to determine conformance with the specified requirements, it is intended that observed or calculated values be rounded to the nearest unit in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding method of ASTM E29. 1.7 Where any requirements of this Standard are at variance with the requirements of other publications referenced in this Standard, it is intended that the requirements of this Standard govern. 1.8 It is not the intent of this Standard to prevent the development of new equipment or practices, or to prescribe how such innovations are to be handled. 1.9 In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

ASME B1.20.1-2013 (R2018)

Pipe Threads, General Purpose, Inch

ASME’s widely-referenced B1.20.1 Standard on Pipe Threads, General Purpose, Inch covers dimensions and gaging of the world’s most common pipe threads: NPT, NPSC, NPTR, NPSM, and NPSL.  From critical applications demanding robustness and precision to common plumbing and hardware, these threads are used everywhere in the United States and abroad.   This long awaited revision incorporates both subtle and substantive changes, including:  Moving of the gaging point of reference of external threads in certain circumstances; A new acceptability section for instances of gaging disputes; A change to parameters, facilitating the calibration of working gages; Guidance for plated or coated pipe threads; Better explanatory language for the lay-user. This is the foundational Standard for NPT, NPSC, NPSM, and NPSL pipe threads. All companies that manufacture, sell, or use these threads should have this revision in their technical library.

CGA G-4.4-2020

Oxygen Pipeline and Piping Systems - Sixth edition

The scope of this publication is for metal oxygen pipelines, distribution piping systems, and gaseous oxygen piping on an air separation plant external to the coldbox. The scope is limited to gaseous oxygen with a temperature range between –22 °F and 400 °F (–30 °C and 200 °C), pressures up to 3000 psi (21 MPa), and a dew point of –22 °F (–30 °C) or less depending on local conditions.1, 2 Although it is possible to safely use oxygen at higher temperatures and/or pressures, such applications are beyond the scope of this publication. In these cases, additional materials testing and/or a risk assessment, as appropriate to the application, shall be undertaken.

AWWA M11-2017

Steel Pipe -- A Guide for Design and Installation, Fourth Edition

This manual explains the design, installation, and maintenance of steel water pipe and fittings for potable water service.

ANSI/MSS SP-69-2003

Pipe Hangers and Supports - Selection and Application

This Standard Practice presents the recommended practice for the selection and apptication of pipe hangers and supports for all service temperatures. Contents of this SP have now been incorporated into MSS SP-58-2009; however this SP is still active and available until officially withdrawn

ANSI B11.15-2022

Safety Requirements for Bar, Pipe, Tube and Shape Bending Machines 

The requirements of this standard apply to any power-driven machine designed for bending bar, pipe, tube, and shapes by means of bending dies, clamp dies, pressure dies, mandrels, wiper dies, vertical bending punches, radius dies, wing dies, and associated tooling.

ASCE MOP 145-2021

Design of Close-Fit Liners for the Rehabilitation of Gravity Pipes

Prepared by the Pipeline Infrastructure Committee of the Utility Engineering and Surveying Institute of ASCE

Design of Close-Fit Liners for the Rehabilitation of Gravity Pipes, MOP 145, provides a comprehensive source of information on the design of flexible, close-fit linings for the renewal or rehabilitation of pipes designed for gravity flow such as sanitary sewers, culverts, and storm sewers.

Introductory topics discussed include pipe-soil structure interaction, condition assessment and inspection methods, and lining options, but the main focus is on the thickness design of close-fit flexible liners. This design is based on a closed-form solution, which takes into account both the current shape of the host structure as well as the potential imperfections of the liner (annular gap) and of the host structure (cracks or fractures).

The design solutions presented can be used for circular and noncircular geometries such as pipe-arch shapes, egg shapes, elliptical shaped pipes (both horizontal and vertical), box shaped pipes (both rectangular and square), and other, undefined site-specific shapes.

This Manual of Practice covers the thickness design of flexible liners to be installed in a gravity-flow sewer or culvert pipe; the host pipe can be rigid or flexible and be circular or noncircular; the installation method is trenchless and yields a close-fit lining, cured-in-place lining, or fold-and-form lining.

MOP 145 will provide guidance to consulting engineers tasked with designing flexible close-fit liners for rehabilitation of existing gravity pipe applications.