ASME B31.8

ASME B31.8

GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
Gas Transmission and Distribution Piping Systems
Gas Transmission and Distribution Piping Systems
Gas Transmission and Distribution Piping Systems
Gas Transmission and Distribution Piping Systems
Gas Transmission and Distribution Piping Systems
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
Addenda to ASME B31.8-1999 Gas Transmission and Distribution Piping Systems
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
Gas Transmission and Distribution Piping Systems
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1992 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1992 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1992 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO ASME B31.8- 1989 EDITION GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO ASME B31.8- 1989 EDITION GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1986 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1986 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1986 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1982 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1982 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
ADDENDA TO B31.8-1982 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
Gas Transmission and Distribution Piping Systems
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
Gas Transmission and Distribution Piping Systems
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS
Gas Transmission and Distribution Piping Systems
GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

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Standard Details

Scope:
(a) This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and maintenance of those facilities. (See Mandatory Appendix Q for scope diagrams.) This Code is concerned only with certain safety aspects of liquefied petroleum gases when they are 1 vaporized and used as gaseous fuels. All of the requirements of NFPA 58 and NFPA 59 and of this Code concerning design, construction, and operation and maintenance of piping facilities shall apply to piping systems handling butane, propane, or mixtures of these gases.

(b) This Code does not apply to (1) design and manufacture of pressure vessels covered by the BPV Code1

(2) piping with metal temperatures above 450°F (232°C) or below −20°F (−29°C) (For low-temperature considerations, see para. 812.)

(3) piping beyond the outlet of the customer 's meter set assembly (Refer to ANSI Z223.1/NFPA 54.)

(4) piping in oil refineries or natural gasoline extraction plants, gas treating plant piping other than the main gas stream piping in dehydration, and all other processing plants installed as part of a gas transmission system, gas manufacturing plants, industrial plants, or mines (See other applicable sections of the ASME Code for Pressure Piping, B31.)

(5) vent piping to operate at substantially atmospheric pressures for waste gases of any kind

(6) wellhead assemblies, including control valves, flow lines between wellhead and trap or separator, offshore platform production facility piping, or casing and tubing in gas or oil wells (For offshore platform production facility piping, see API RP 14E.)

(7) the design and manufacture of proprietary items of equipment, apparatus, or instruments

(8) the design and manufacture of heat exchangers (Refer to appropriate TEMA2 standard.)

(9) liquid petroleum transportation piping systems (Refer to ASME B31.4.)

(10) liquid slurry transportation piping systems (Refer to ASME B31.4.)

(11) carbon dioxide transportation piping systems

Organization: ASME International
Document Number: asme b31.8
Publish Date: 2014-09-30
Page Count: 224
Change Type: COMPLETE REVISION
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: YES
Status: Active

Publication Date: 01/01/2016 - Complete Document

Document Type : Complete Document

Page Count : 212

Publication Date : 01/01/2016

Revision : 16

Status : F

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 09/30/2014 - Complete Document

Description :

(a) This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and maintenance of those facilities. (See Mandatory Appendix Q for scope diagrams.) This Code is concerned only with certain safety aspects of liquefied petroleum gases when they are 1 vaporized and used as gaseous fuels. All of the requirements of NFPA 58 and NFPA 59 and of this Code concerning design, construction, and operation and maintenance of piping facilities shall apply to piping systems handling butane, propane, or mixtures of these gases.

(b) This Code does not apply to (1) design and manufacture of pressure vessels covered by the BPV Code1

(2) piping with metal temperatures above 450°F (232°C) or below −20°F (−29°C) (For low-temperature considerations, see para. 812.)

(3) piping beyond the outlet of the customer 's meter set assembly (Refer to ANSI Z223.1/NFPA 54.)

(4) piping in oil refineries or natural gasoline extraction plants, gas treating plant piping other than the main gas stream piping in dehydration, and all other processing plants installed as part of a gas transmission system, gas manufacturing plants, industrial plants, or mines (See other applicable sections of the ASME Code for Pressure Piping, B31.)

(5) vent piping to operate at substantially atmospheric pressures for waste gases of any kind

(6) wellhead assemblies, including control valves, flow lines between wellhead and trap or separator, offshore platform production facility piping, or casing and tubing in gas or oil wells (For offshore platform production facility piping, see API RP 14E.)

(7) the design and manufacture of proprietary items of equipment, apparatus, or instruments

(8) the design and manufacture of heat exchangers (Refer to appropriate TEMA2 standard.)

(9) liquid petroleum transportation piping systems (Refer to ASME B31.4.)

(10) liquid slurry transportation piping systems (Refer to ASME B31.4.)

(11) carbon dioxide transportation piping systems

Document Type : Complete Document

Language : English

Page Count : 224

Publication Date : 09/30/2014

Revision : 14

Status : Current

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 01/01/2012 - Complete Document *

Description :

(a) This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and maintenance of those facilities. (See Appendix Q for scope diagrams.)

This Code is concerned only with certain safety aspects of liquefied petroleum gases when they are 1 vaporized and used as gaseous fuels. All of the requirements of NFPA 58 and NFPA 59 and of this Code concerning design, construction, and operation and maintenance of piping facilities shall apply to piping systems handling butane, propane, or mixtures of these gases.

(b) This Code does not apply to

(1) design and manufacture of pressure vessels covered by the BPV Code1

(2) piping with metal temperatures above 450°F (232°C) or below -20°F (-29°C) (For low temperature considerations, see para. 812.)

(3) piping beyond the outlet of the customer 's meter set assembly (Refer to ANSI Z223.1/NFPA 54.)

(4) piping in oil refineries or natural gasoline extraction plants, gas treating plant piping other than the main gas stream piping in dehydration, and all other processing plants installed as part of a gas transmission system, gas manufacturing plants, industrial plants, or mines (See other applicable sections of the ASME Code for Pressure Piping, B31.)

(5) vent piping to operate at substantially atmospheric pressures for waste gases of any kind

(6) wellhead assemblies, including control valves, flow lines between wellhead and trap or separator, offshore platform production facility piping, or casing and tubing in gas or oil wells (For offshore platform production facility piping, see API RP 14E.)

(7) the design and manufacture of proprietary items of equipment, apparatus, or instruments

(8) the design and manufacture of heat exchangers (Refer to appropriate TEMA2 Standard.)

(9) liquid petroleum transportation piping systems (Refer to ASME B31.4.)

(10) liquid slurry transportation piping systems (Refer to ASME B31.11.)

(11) carbon dioxide transportation piping systems

(12) liquefied natural gas piping systems (Refer to NFPA 59A and ASME B31.3.)

(13) cryogenic piping systems

Document Type : Complete Document

Edition : Includes Interpretations VOLUME 16

Language : English

Page Count : 228

Publication Date : 01/01/2012

Revision : 12

Status : Historical

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 06/01/2010 - Complete Document *

Description :

(a) This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and maintenance of those facilities. (See Appendix Q for scope diagrams.)

This Code is concerned only with certain safety aspects of liquefied petroleum gases when they are  vaporized and used as gaseous fuels. All of the requirements of NFPA 58 and NFPA 59 and of this Code concerning design, construction, and operation and maintenance of piping facilities shall apply to piping systems handling butane, propane, or mixtures of these gases.

(b) This Code does not apply to

(1) design and manufacture of pressure vessels covered by the BPV Code1

(2) piping with metal temperatures above 450°F (232°C) or below −20°F (−29°C) (For low temperature considerations, see para. 812.)

(3) piping beyond the outlet of the customer 's meter set assembly (Refer to ANSI Z223.1/NFPA 54.)

(4) piping in oil refineries or natural gasoline extraction plants, gas treating plant piping other than the main gas stream piping in dehydration, and all other processing plants installed as part of a gas transmission system, gas manufacturing plants, industrial plants, or mines (See other applicable sections of the ASME Code for Pressure Piping, B31.)

(5) vent piping to operate at substantially atmospheric pressures for waste gases of any kind

(6) wellhead assemblies, including control valves, flow lines between wellhead and trap or separator, offshore platform production facility piping, or casing and tubing in gas or oil wells (For offshore platform production facility piping, see API RP 14E.)

(7) the design and manufacture of proprietary items of equipment, apparatus, or instruments

(8) the design and manufacture of heat exchangers (Refer to appropriate TEMA2 Standard.)

(9) liquid petroleum transportation piping systems (Refer to ASME B31.4.)

(10) liquid slurry transportation piping systems (Refer to ASME B31.11.)

(11) carbon dioxide transportation piping systems

(12) liquefied natural gas piping systems (Refer to NFPA 59A and ASME B31.3.)

(13) cryogenic piping systems

1 BPV Code references here and elsewhere in this Code are to the ASME Boiler and Pressure Vessel Code.

2 Tubular Exchanger Manufacturers Association, 25 North Broadway, Tarrytown, NY 10591.

Document Type : Complete Document

Edition : Includes Interpretations VOLUME 15 January 2007 Through September 2009

Language : English

Page Count : 212

Publication Date : 06/01/2010

Revision : 10

Status : Historical

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 11/30/2007 - Complete Document

Description :

This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and maintenance of those facilities.

This Code does not apply to

(a) design and manufacture of pressure vessels covered by the BPV Code1

(b) piping with metal temperatures above 450°F or below −20°F (For low temperature within the range covered by this Code, see para. 812.)

(c) piping beyond the outlet of the customer's meter set assembly (Refer to ANSI Z223.1 and NFPA 54.)

(d) piping in oil refineries or natural gasoline extraction plants, gas treating plant piping other than the main gas stream piping in dehydration, and all other processing plants installed as part of a gas transmission system, gas manufacturing plants, industrial plants, or mines (See other applicable sections of the ASME Code for Pressure Piping, B31.)

(e) vent piping to operate at substantially atmospheric pressures for waste gases of any kind

(f) wellhead assemblies, including control valves, flow lines between wellhead and trap or separator, offshore platform production facility piping, or casing and tubing in gas or oil wells. (For offshore platform production facility piping, see API RP 14E.)

(g) the design and manufacture of proprietary items of equipment, apparatus, or instruments

(h) the design and manufacture of heat exchangers (Refer to appropriate TEMA2 Standard.)

(i) liquid petroleum transportation piping systems (Refer to ASME B31.4.)

(j) liquid slurry transportation piping systems (Refer to ASME B31.11.)

(k) carbon dioxide transportation piping systems

(l) liquefied natural gas piping systems (Refer to NFPA 59A and ASME B31.3.)

Document Type : Complete Document

Language : English

Page Count : 202

Publication Date : 11/30/2007

Revision : 07

Status : Historical

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 01/01/2003 - Complete Document

Description :

SCOPE AND INTENT

This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and maintenance of those facilities.

This Code does not apply to

(a) design and manufacture of pressure vessels covered by the BPV Code(Footnote 1)

(b) piping with metal temperatures above 450°F or below −20°F. (For low temperature within the range covered by this Code, see para. 812.)

(c) piping beyond the outlet of the customer's meter set assembly. (Refer to ANSI Z223.1 and NFPA 54.)

(d) piping in oil refineries or natural gasoline extraction plants, gas treating plant piping other than the main gas stream piping in dehydration, and all other processing plants installed as part of a gas transmission system, gas manufacturing plants, industrial plants, or mines. (See other applicable sections of the ASME Code for Pressure Piping, B31.)

(e) vent piping to operate at substantially atmospheric pressures for waste gases of any kind

(f) wellhead assemblies, including control valves, flow lines between wellhead and trap or separator, offshore platform production facility piping, or casing and tubing in gas or oil wells. (For offshore platform production facility piping, see API RP 14E.)

(g) the design and manufacture of proprietary items of equipment, apparatus, or instruments

(h) the design and manufacture of heat exchangers (Refer to appropriate TEMA(Footnote 2) Standard.)

(i) liquid petroleum transportation piping systems (Refer to ANSI/ASME B31.4.)

(j) liquid slurry transportation piping systems (Refer to ASME B31.11.)

(k) carbon dioxide transportation piping systems

(l) liquefied natural gas piping systems (Refer to NFPA 59A and ASME B31.3.)

Footnote 1 - BPV Code references here and elsewhere in this Code are to the ASME Boiler and Pressure Vessel Code.

Footnote 2 - Tubular Exchanger Manufacturers Association, 25 North Broadway, Tarrytown, NY 10591.

Document Type : Complete Document

Language : English

Page Count : 192

Publication Date : 01/01/2003

Revision : 03

Status : Historical

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 11/16/2001 - Complete Document

Document Type : Complete Document

Page Count : 244

Publication Date : 11/16/2001

Revision : 99

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/2000 - Amendment

Description :

SCOPE AND INTENT

This Code covers the design, fabrication, installation, inspection, and testing of pipeline facilities used for the transportation of gas. This Code also covers safety aspects of the operation and of those facilities.

This Code does not apply to

(a) design and manufacture of pressure vessels covered by the BPV Code

(b) piping with metal temperatures above 450°F or below −20°F. (For low temperature within the range covered by this Code, see para. 812.)

(c) piping beyond the outlet of the customer's meter set assembly. (Refer to ANSI Z223.1 and NFPA 54.)

(d) piping in oil refineries or natural gasoline extraction plants, gas treating plant piping other than the main gas stream piping in dehydration, and all other processing plants installed as part of a gas transmission system, gas manufacturing plants, industrial plants, or mines. (See other applicable sections of the ASME Code for Pressure Piping, B31.)

(e) vent piping to operate at substantially atmospheric pressures for waste gases of any kind

(f) wellhead assemblies, including control valves, flow lines between wellhead and trap or separator, off-shore platform production facility piping, or casing and tubing in gas or oil wells. (For offshore platform production facility piping, see API RP 14E.)

(g) the design and manufacture of proprietary items of equipment, apparatus, or instruments

(h) the design and manufacture of heat exchangers. (Refer to appropriate TEMA Standard.)

(i) liquid petroleum transportation piping systems. (Refer to ANSI/ASME B31.4.)

(j) liquid slurry transportation piping systems. (Refer to ASME B31.11.)

(k) carbon dioxide transportation piping systems

(i) liquefied natural gas piping systems. (Refer to NFPA 59A and ASME B31.3.)

Document Type : Amendment

Language : English

Page Count : 51

Publication Date : 01/01/2000

Revision : 99

Status : Historical

Title : Addenda to ASME B31.8-1999 Gas Transmission and Distribution Piping Systems

Publication Date: 01/01/1999 - Base Document

Document Type : Base Document

Page Count : 229

Publication Date : 01/01/1999

Revision : 99

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1995 - Complete Document

Document Type : Complete Document

Language : English

Page Count : 185

Publication Date : 01/01/1995

Revision : 95

Status : Historical

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 01/01/1994 - Complete Document

Document Type : Complete Document

Page Count : 275

Publication Date : 01/01/1994

Revision : 92

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1994 - Amendment

Document Type : Amendment

Language : English

Page Count : 30

Publication Date : 01/01/1994

Revision : 92

Status : Historical

Title : ADDENDA TO B31.8-1992 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 08/15/1994 - Amendment

Document Type : Amendment

Language : English

Page Count : 43

Publication Date : 08/15/1994

Revision : 92

Status : Historical

Title : ADDENDA TO B31.8-1992 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 10/15/1993 - Amendment

Document Type : Amendment

Language : English

Page Count : 19

Publication Date : 10/15/1993

Revision : 92

Status : Historical

Title : ADDENDA TO B31.8-1992 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1992 - Base Document

Document Type : Base Document

Language : English

Page Count : 183

Publication Date : 01/01/1992

Revision : 92

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 02/28/1992 - Complete Document

Document Type : Complete Document

Page Count : 426

Publication Date : 02/28/1992

Revision : 89

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 02/28/1992 - Amendment

Document Type : Amendment

Language : English

Page Count : 56

Publication Date : 02/28/1992

Revision : 89

Status : Historical

Title : ADDENDA TO ASME B31.8- 1989 EDITION GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 02/28/1991 - Amendment

Document Type : Amendment

Page Count : 1

Publication Date : 02/28/1991

Revision : 89

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1990 - Amendment

Document Type : Amendment

Page Count : 82

Publication Date : 01/01/1990

Revision : 89

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 07/06/1990 - Amendment

Document Type : Amendment

Page Count : 1

Publication Date : 07/06/1990

Revision : 89

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 04/15/1990 - Amendment

Document Type : Amendment

Language : English

Page Count : 120

Publication Date : 04/15/1990

Revision : 89

Status : Historical

Title : ADDENDA TO ASME B31.8- 1989 EDITION GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 09/15/1989 - Base Document

Document Type : Base Document

Language : English

Page Count : 166

Publication Date : 09/15/1989

Revision : 89

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1988 - Complete Document

Document Type : Complete Document

Page Count : 281

Publication Date : 01/01/1988

Revision : 86

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1988 - Amendment

Document Type : Amendment

Language : English

Page Count : 32

Publication Date : 01/01/1988

Revision : 86

Status : Historical

Title : ADDENDA TO B31.8-1986 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1987 - Amendment

Document Type : Amendment

Language : English

Page Count : 66

Publication Date : 01/01/1987

Revision : 86

Status : Historical

Title : ADDENDA TO B31.8-1986 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1986 - Amendment

Document Type : Amendment

Language : English

Page Count : 20

Publication Date : 01/01/1986

Revision : 86

Status : Historical

Title : ADDENDA TO B31.8-1986 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 12/31/1986 - Base Document

Document Type : Base Document

Language : English

Page Count : 163

Publication Date : 12/31/1986

Revision : 86

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 04/15/1986 - Complete Document

Document Type : Complete Document

Page Count : 186

Publication Date : 04/15/1986

Revision : 82

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 04/15/1986 - Amendment

Document Type : Amendment

Language : English

Page Count : 11

Publication Date : 04/15/1986

Revision : 82

Status : Historical

Title : ADDENDA TO B31.8-1982 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 04/30/1985 - Amendment

Document Type : Amendment

Language : English

Page Count : 3

Publication Date : 04/30/1985

Revision : 82

Status : Historical

Title : ADDENDA TO B31.8-1982 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 11/30/1984 - Amendment

Document Type : Amendment

Language : English

Page Count : 13

Publication Date : 11/30/1984

Revision : 82

Status : Historical

Title : ADDENDA TO B31.8-1982 GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1982 - Base Document

Document Type : Base Document

Language : English

Page Count : 159

Publication Date : 01/01/1982

Revision : 82

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1975 - Complete Document

Document Type : Complete Document

Language : English

Page Count : 134

Publication Date : 01/01/1975

Revision : 75

Status : Historical

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 01/01/1969 - Complete Document

Document Type : Complete Document

Page Count : 148

Publication Date : 01/01/1969

Revision : 68

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1969 - Amendment

Document Type : Amendment

Page Count : 25

Publication Date : 01/01/1969

Revision : 68

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/2068 - Base Document

Document Type : Base Document

Page Count : 128

Publication Date : 01/01/2068

Revision : 68

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1967 - Complete Document

Description :

FOREWORD

The need for a national code for pressure piping became increasingly evident from 1915 to 1925. To meet this need the American Engineering Standards Committee (later changed to the American Standards Association) initiated Project B31 in March 1926 at the request of the American Society of Mechanical Engineers and with that society as sole sponsor. After several years' work by Sectional Committee B31 and its subcommittees, a first edition was published in ~935as an American Tentative Standard Code for Pressure Piping.

A revision of the original tentative standard was begun in 1937. Several more yearseffort was given to securing uniformity between sections and to eliminating divergent requirements and discrepancies as well as to keeping the code abreast of current developments in welding technique, stress computations, and reference to new dimensional and material standards. During this period a new section was added on refrigeration piping, prepared in cooperation with The American Society of Refrigeration Engineers and com· plementing the American Standard Code for Mechanical Refrigeration. This work culminated in the 1942 American Standard Code for Pressure Piping.

Document Type : Complete Document

Language : English

Page Count : 120

Publication Date : 01/01/1967

Revision : 67

Status : Historical

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 01/01/2066 - Complete Document

Document Type : Complete Document

Page Count : 83

Publication Date : 01/01/2066

Revision : 63

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/2066 - Amendment

Document Type : Amendment

Page Count : 12

Publication Date : 01/01/2066

Revision : 63

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/2064 - Amendment

Document Type : Amendment

Page Count : 2

Publication Date : 01/01/2064

Revision : 63

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/2063 - Base Document

Document Type : Base Document

Page Count : 69

Publication Date : 01/01/2063

Revision : 63

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

Publication Date: 01/01/1958 - Complete Document

Description :

INTRODUCTION

The Code for Pressure Piping (ASA B31) consists of a number of Sections, which collectively constitute the Code. Hereinafter in this introduction and in the text of this Code Section B31.8, when the word "Code" is used without identification to another specific Code Section it means this Code Section.

The Code for Pressure Piping sets forth engineering requirements deemed necessary for safe design and construction of piping systems. While safety is the basic consideration of this Code, this factor alone will not necessarily govern the final specifications for any pressure piping system. The designer is cautioned that the Code is not a design handbook. The Code does not do away with the need for the engineer or competent engineering judgment.

The Code contains basic reference data and formulas necessary for design. It is intended to state these requirements in terms of basic design principles to the fullest possible extent, supplemented with specific requirements where necessary to obtain uniform interpretation of principle. It contains prohibitions in areas where practices or designs are known to be unsafe. In other areas the Code contains warnings or "flags" where caution is known to be necessary, but where it is felt that a direct prohibition would be unwise.

The Code includes:

( 1) Standards and material specifications which have been accepted for Code usage.

(2) The designation of proper dimensional standards for the elements comprising piping systems.

( 3) Requirements for the design of component parts and assembled units, including necessary supports.

( 4) Requirements for the evaluation and limitation of stresses, reactions and movements associated with pressure, temperature, and external forces.

( 5) Requirements for the fabrication, assembly and erection of piping systems.

( 6) Requirements for testing and inspecting of elements before assembly or erection and of the completed systems after erection.

The components of piping systems should, as far as practical, comply with the Specifications and Standards listed in the Code.

Compliance with this Code requires that fundamental principles be followed and that materials or practices not specifically approved under this Code, but which are not prohibited by the Code, be qualified for use as set forth in the applicable chapters of the Code.

The specific design requirements of the Code usually revolve around a simplified engineering approach to a subject. It is intended that a designer capable of applying more complete and rigorous analysis to special or unusual problems shall have latitude in the development of such designs and the evaluation of complex or combined stresses. In such cases the designer is responsible for demonstrating the validity of his approach.

It is not intended that this Code be applied retroactively to existing installations insofar as design, fabrication, installation, established operating pressure, and testing are concerned. It is intended, however, that the provisions of this Code shall be applicable to the operation, maintenance, and up-rating of existing installations.

Attention of users of the Code is directed to the fact that the numbering of the Divisions and/or the sub material thereunder may not be consecutive. Such discontinuity is recognized. It is not the result of editorial or printing errors. An attempt has been made, insofar as possible, to follow a Uniform Outline in the various Sections. Due to the fact that the complete Outline may cover phases not applicable to a particular Section, the Code has been prepared with gaps in the numbering. It is believed that in this way, cross referencing between Sections is made easier and use of the Code is facilitated since the same subject, in general, appears under the same number and sub-number in all Sections.

The Code is under the direction of Sectional Committee B31 of the American Standards Association and is under the administrative sponsorship of The American Society of Mechanical Engineers.

The Committee is a continuing one and is organized to keep the Code up to date in context and in step with the developments in materials, constructions and usage. Revisions are issued periodically. New editions are published at three to four year intervals depending on conditions.

Sectional Committee ASA B31 has established an orderly procedure to consider requests for interpretations and revisions of Code requirements. In order to receive consideration, inquiries shall be in writing and must give full particulars.

When an approved reply to an inquiry involves a change in Code requirements, the ruling is made public through the issuance of a "Case." This is published in Mechanical Engineering. A "Case Interpretation and Revision" service is maintained for the benefit of all who use the Code. Suggestions for revisions may originate within the committee itself or from anyone outside the committee.

All requests for interpretations or suggestions for revisions should be addressed to the Secretary, ASA Sectional Committee B31, in care of The American Society of Mechanical Engineers, 29 West 39th Street, New York 18, New York.

Document Type : Complete Document

Language : English

Page Count : 93

Publication Date : 01/01/1958

Revision : 58

Status : Historical

Title : Gas Transmission and Distribution Piping Systems

Publication Date: 01/01/2055 - Complete Document

Document Type : Complete Document

Page Count : 106

Publication Date : 01/01/2055

Revision : 55

Status : Historical

Title : GAS TRANSMISSION AND DISTRIBUTION PIPING SYSTEMS

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