{"id":418986,"date":"2024-10-20T06:23:39","date_gmt":"2024-10-20T06:23:39","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asme-b31-8-2022\/"},"modified":"2024-10-26T11:55:36","modified_gmt":"2024-10-26T11:55:36","slug":"asme-b31-8-2022","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asme\/asme-b31-8-2022\/","title":{"rendered":"ASME B31.8 2022"},"content":{"rendered":"

ASME B31.8 covers gas transmission and distribution piping systems, including gas pipelines, gas compressor stations, gas metering and regulation stations, gas mains, and service lines up to the outlet of the customer\u2019s meter set assembly. It includes gas transmission and gathering pipelines, including appurtenances that are installed offshore for the purpose of transporting gas from production facilities to onshore locations; gas storage equipment of the closed pipe type that is fabricated or forged from pipe or fabricated from pipe and fittings; and gas storage lines. Key changes to this revision include adding the following: a new section to address fit up requirements for bends and elbows; specific language and\/or references to include non-pressurized pipe; guidelines for assembly of flanges; pig trap design safety requirements; the use of Multilayered Reinforced Thermoplastic Piping Systems (MRTPS); and requirements for general monitoring for Abnormal Operating Conditions (AOCs) and decoupling AOCs from covered task qualifications. In addition, the list of approved valve specifications has been expanded. This Code prescribes comprehensive solutions for materials, design, fabrication, assembly, erection, testing and inspection. It also serves as a companion to ASME\u2019s other B31 codes on piping systems. Together, they remain essential references for anyone engaged with piping. Careful application of these B31 codes will help users to comply with applicable regulations within their jurisdictions, while achieving the operational, cost and safety benefits to be gained from the many industry best-practices detailed within these volumes. Intended for manufacturers, users, constructors, designers, pipeline operation and maintenance personnel, and regulatory personnel, plus all potential governing entities.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
9<\/td>\nFOREWORD <\/td>\n<\/tr>\n
11<\/td>\nASME B31 COMMITTEE ROSTER <\/td>\n<\/tr>\n
15<\/td>\nCORRESPONDENCE WITH THE B31 COMMITTEE <\/td>\n<\/tr>\n
17<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
19<\/td>\nASME B31.8-2022 SUMMARY OF CHANGES <\/td>\n<\/tr>\n
22<\/td>\nGeneral Provisions and Definitions
801 GENERAL
801.1 Approved Standards and Specifications
801.2 Use of Standards and Specifications Incorporated by Reference
801.3 Standard Dimensions
801.4 Units of Measure
802 SCOPE AND INTENT
802.1 Scope <\/td>\n<\/tr>\n
23<\/td>\n802.2 Intent
802.2.1 Adequacy for Normal Conditions.
802.2.2 More Complete Analysis.
802.2.3 Safety.
802.2.4 Retroactive Applications.
802.2.5 Application to Existing Facilities.
802.2.6 Qualification of Those Performing Inspections or Examinations.
802.2.7 Further Information.
802.3 Offshore Gas Transmission
803 PIPING SYSTEMS DEFINITIONS
803.1 General Terms and Definitions <\/td>\n<\/tr>\n
24<\/td>\n803.2 Piping Systems
803.3 Distribution Systems <\/td>\n<\/tr>\n
25<\/td>\n803.4 Gathering Systems
803.5 Miscellaneous Systems
803.6 Meters, Regulators, and Pressure-Relieving Stations
803.7 Valves <\/td>\n<\/tr>\n
26<\/td>\n803.8 Gas Storage Equipment
804 PIPING SYSTEMS COMPONENT DEFINITIONS
804.1 Plastic Terms and Definitions
804.2 Iron Terms and Definitions
804.3 General Terms and Definitions
804.4 Pipe Terms and Definitions
804.5 Dimensional Terms and Definitions
804.6 Mechanical Properties <\/td>\n<\/tr>\n
27<\/td>\n804.7 Steel Pipe
804.7.1 Carbon Steel.3From Steel Products Manual, Section 6, American Iron and Steel Institute, August 1952, pp. 5 and 6.
804.7.2 Alloy Steel.4From Steel Products Manual, Section 6, American Iron and Steel Institute, January 1952, pp. 6 and 7.
804.7.3 Pipe Manufacturing Processes. <\/td>\n<\/tr>\n
28<\/td>\n804.8 Plastic Pipe
805 DESIGN, FABRICATION, OPERATION, AND TESTING TERMS AND DEFINITIONS
805.1 General
805.1.1 Area
805.1.2 Leakage Investigative Terms and Definitions.
805.1.3 Plastic Terms and Definitions <\/td>\n<\/tr>\n
29<\/td>\n805.1.4 Fabrication Terms and Definitions
805.2 Design
805.2.1 Pressure Terms and Definitions <\/td>\n<\/tr>\n
30<\/td>\n805.2.2 Temperature Terms and Definitions
805.2.3 Stress Terms and Definitions
805.2.4 Construction, Operation, and Maintenance Terms and Definitions <\/td>\n<\/tr>\n
32<\/td>\n805.2.5 Corrosion Control Terms and Definitions <\/td>\n<\/tr>\n
33<\/td>\n805.2.6 Engineering Terms and Definitions <\/td>\n<\/tr>\n
34<\/td>\n805.2.7 Miscellaneous Terms and Definitions
806 QUALITY ASSURANCE
807 TRAINING AND QUALIFICATION OF PERSONNEL
807.1 Program <\/td>\n<\/tr>\n
35<\/td>\n807.2 Operating and Maintenance Functions
807.3 Reference <\/td>\n<\/tr>\n
36<\/td>\nChapter I Materials and Equipment
810 MATERIALS AND EQUIPMENT
811 QUALIFICATION OF MATERIALS AND EQUIPMENT
811.1 Categories
811.2 Procedures for Qualification
811.3 Unidentified or Used Pipe <\/td>\n<\/tr>\n
37<\/td>\n812 MATERIALS FOR USE IN LOW-TEMPERATURE APPLICATIONS
813 MARKING
813.1 Scope
813.2 Die Stamping
813.3 Multiple Marking of Materials or Components
814 MATERIAL SPECIFICATIONS
814.1 Pipe Conforming to Referenced Standards and Specifications <\/td>\n<\/tr>\n
38<\/td>\n814.2 Steel, Cast Iron, and Ductile Iron Piping Components
815 EQUIPMENT SPECIFICATIONS
816 TRANSPORTATION OF LINE PIPE
817 CONDITIONS FOR THE REUSE OF PIPE
817.1 Reuse of Steel Pipe <\/td>\n<\/tr>\n
39<\/td>\nTables
Table 817.1.3-1 Tensile Testing <\/td>\n<\/tr>\n
40<\/td>\n817.2 Reuse of Ductile Iron Pipe
817.3 Reuse of Plastic Piping <\/td>\n<\/tr>\n
41<\/td>\nChapter II Welding
820 WELDING
821 GENERAL
821.1 Welding Processes
821.2 Welding Procedure
821.3 Weld Acceptance
821.4 Welding Qualifications
821.5 Welding Safety
821.6 Welding Terms
822 PREPARATION FOR WELDING
822.1 Butt Welds <\/td>\n<\/tr>\n
42<\/td>\n822.2 Fillet Welds
822.3 Seal Welds
823 QUALIFICATION OF PROCEDURES AND WELDERS
823.1 Requirements for Qualifying Welders on Piping Systems Operating at Hoop Stresses of Less Than 20% of the Specified Minimum Yield Strength
823.2 Requirements for Qualifying Procedures and Welders on Piping Systems Operating at Hoop Stresses of 20% or More of the Specified Minimum Yield Strength
823.3 Welder Requalification Requirements
823.4 Qualification Records
824 PREHEATING
824.1 Carbon Steels
824.2 Dissimilar Materials
824.3 Suitable Methods <\/td>\n<\/tr>\n
43<\/td>\n824.4 Temporary Monitoring
825 STRESS RELIEVING
825.1 Carbon Steels
825.2 Wall Thickness
825.3 Different Wall Thicknesses
825.4 Dissimilar Materials
825.5 Connections and Attachments
825.6 Stress Relieving Temperature
825.7 Methods of Stress Relieving <\/td>\n<\/tr>\n
44<\/td>\n825.8 Equipment for Local Stress Relieving
826 WELD EXAMINATION REQUIREMENTS
826.1 Visual Examination
826.2 Examination of Welds on Piping Systems Intended to Operate at Hoop Stress Levels of Less Than 20% of the Specified Minimum Yield Strength
826.3 Examination for Quality Control of Welds on Piping Systems Intended to Operate at Hoop Stress Levels of 20% or More of the Specified Minimum Yield Strength
827 REPAIR OR REMOVAL OF DEFECTIVE WELDS IN PIPING INTENDED TO OPERATE AT HOOP STRESS LEVELS OF 20% OR MORE OF THE SPECIFIED MINIMUM YIELD STRENGTH <\/td>\n<\/tr>\n
45<\/td>\nChapter III Piping System Components and Fabrication Details
830 GENERAL
831 PIPING SYSTEM COMPONENTS
831.1 Valves and Pressure-Reducing Devices <\/td>\n<\/tr>\n
46<\/td>\n831.2 Flanges <\/td>\n<\/tr>\n
48<\/td>\n831.3 Fittings Other Than Valves and Flanges <\/td>\n<\/tr>\n
49<\/td>\n831.4 Reinforcement of Welded Branch Connections <\/td>\n<\/tr>\n
51<\/td>\nTable 831.4.2-1 Reinforcement of Welded Branch Connections, Special Requirements <\/td>\n<\/tr>\n
52<\/td>\n831.5 Reinforcement of Multiple Openings
831.6 Extruded Outlets
832 EXPANSION AND FLEXIBILITY
832.1 Application
832.2 Amount of Expansion or Contraction
832.3 Flexibility Requirements <\/td>\n<\/tr>\n
53<\/td>\n832.4 Reactions
832.5 Modulus of Elasticity
Table 832.2-1 Thermal Expansion or Contraction of Piping Materials \u2014 Carbon and Low Alloy High Tensile Steel and Wrought Iron
Table 832.5-1 Modulus of Elasticity for Carbon and Low Alloy Steel <\/td>\n<\/tr>\n
54<\/td>\n833 DESIGN FOR LONGITUDINAL STRESS
833.1 Restraint
833.2 Calculation of Longitudinal Stress Components
833.3 Summation of Longitudinal Stress in Restrained Pipe <\/td>\n<\/tr>\n
55<\/td>\n833.4 Combined Stress for Restrained Pipe
833.5 Design for Stress Greater Than Yield
833.6 Summation of Longitudinal Stresses in Unrestrained Pipe
833.7 Flexibility Analysis for Unrestrained Piping
833.8 Flexibility Stresses and Stresses Due to Periodic or Cyclic Fatigue Loading <\/td>\n<\/tr>\n
56<\/td>\n833.9 Local Stresses
833.10 Buckling and Lateral Instability
834 SUPPORTS AND ANCHORAGE FOR EXPOSED PIPING
834.1 General <\/td>\n<\/tr>\n
57<\/td>\n834.2 Provision for Expansion
834.3 Materials, Design, and Installation
834.4 Forces on Pipe Joints
834.5 Attachment of Supports or Anchors
835 ANCHORAGE FOR BURIED PIPING
835.1 General
835.2 Anchorage at Bends
835.3 Restraint Due to Soil Friction
835.4 Forces on Pipe Joints
835.5 Supports for Buried Piping
835.6 Interconnection of Underground Lines <\/td>\n<\/tr>\n
58<\/td>\n836 LIQUID REMOVAL EQUIPMENT <\/td>\n<\/tr>\n
59<\/td>\nChapter IV Design, Installation, and Testing
840 DESIGN, INSTALLATION, AND TESTING
840.1 General Provisions <\/td>\n<\/tr>\n
60<\/td>\n840.2 Buildings Intended for Human Occupancy
840.3 Considerations Necessary for Concentrations of People in Location Class 1 or 2 <\/td>\n<\/tr>\n
61<\/td>\n840.4 Intent
841 STEEL PIPE
841.1 Steel Piping Systems Design Requirements <\/td>\n<\/tr>\n
64<\/td>\nTable 841.1.6-1 Basic Design Factor, F
Table 841.1.6-2 Design Factors for Steel Pipe Construction <\/td>\n<\/tr>\n
65<\/td>\nTable 841.1.7-1 Longitudinal Weld Joint Quality Factor, E
Table 841.1.8-1 Temperature Derating Factor, T, for Steel Pipe <\/td>\n<\/tr>\n
68<\/td>\nTable 841.1.11-1 Pipeline Cover Requirements <\/td>\n<\/tr>\n
69<\/td>\n841.2 Installation of Steel Pipelines and Mains <\/td>\n<\/tr>\n
70<\/td>\nTable 841.2.3-1 Pipeline Field Cold Bend Requirements <\/td>\n<\/tr>\n
72<\/td>\n841.3 Testing After Construction <\/td>\n<\/tr>\n
74<\/td>\nTable 841.3.2-1 Test Requirements for Steel Pipelines and Mains to Operate at Hoop Stresses of 30% or More of the Specified Minimum Yield Strength of the Pipe <\/td>\n<\/tr>\n
75<\/td>\n841.4 Commissioning of Facilities
Table 841.3.3-1 Maximum Hoop Stress Permissible During an Air or Gas Test <\/td>\n<\/tr>\n
76<\/td>\n842 OTHER MATERIALS
842.1 Ductile Iron Piping Systems Requirements
842.2 Design of Plastic Piping <\/td>\n<\/tr>\n
77<\/td>\nTable 842.1.1-1 Standard Thickness Selection Table for Ductile Iron Pipe <\/td>\n<\/tr>\n
80<\/td>\n842.3 Installation of Plastic Piping <\/td>\n<\/tr>\n
81<\/td>\nTable 842.2.9-1 Nominal Values for Coefficients of Thermal Expansion of Thermoplastic Pipe Materials <\/td>\n<\/tr>\n
82<\/td>\n842.4 Testing Plastic Piping After Construction <\/td>\n<\/tr>\n
83<\/td>\n842.5 Multilayered Reinforced Thermoplastic Piping Systems (MRTPS) <\/td>\n<\/tr>\n
84<\/td>\n842.6 Copper Mains
843 COMPRESSOR STATIONS
843.1 Compressor Station Design <\/td>\n<\/tr>\n
85<\/td>\n843.2 Electrical Facilities
843.3 Compressor Station Equipment <\/td>\n<\/tr>\n
87<\/td>\n843.4 Compressor Station Piping
844 PIPE-TYPE AND BOTTLE-TYPE HOLDERS
844.1 Pipe-Type Holders in Rights-of-Way Not Under Exclusive Use and Control of the Operating Company <\/td>\n<\/tr>\n
88<\/td>\n844.2 Bottle-Type Holders
844.3 Pipe-Type and Bottle-Type Holders on Property Under the Exclusive Use and Control of the Operating Company
844.4 Special Provisions Applicable to Bottle-Type Holders Only
Table 844.3-1 Design Factors, F
Table 844.3-2 Minimum Clearance Between Containers and Fenced Boundaries <\/td>\n<\/tr>\n
89<\/td>\n844.5 General Provisions Applicable to Both Pipe-Type and Bottle-Type Holders
845 CONTROL AND LIMITING OF GAS PRESSURE
845.1 Basic Requirement for Protection Against Accidental Overpressuring
845.2 Control and Limiting of Gas Pressure <\/td>\n<\/tr>\n
90<\/td>\nable 845.2.2-1 Maximum Allowable Operating Pressure for Steel or Plastic Pipelines or Mains
Table 845.2.3-1 Maximum Allowable Operating Pressure for Pipelines Operating at 100 psig (690 kPa) or More
Table 845.2.3-2 Maximum Allowable Operating Pressure for Pipelines Operating at Less Than 100 psig (690 kPa) <\/td>\n<\/tr>\n
93<\/td>\n845.3 Requirements for Design of Pressure-Relieving and Pressure-Limiting Installations
845.4 Capacity of Pressure-Relieving and Pressure-Limiting Station and Devices <\/td>\n<\/tr>\n
94<\/td>\n845.5 Instrument, Control, and Sample Piping <\/td>\n<\/tr>\n
95<\/td>\n846 VALVES4See paras. 849.1.2 and 849.1.3 for provisions covering valves in service lines.
846.1 Required Spacing of Valves
846.2 Location of Valves
847 VAULTS
847.1 Structural Design Requirements <\/td>\n<\/tr>\n
96<\/td>\n847.2 Accessibility
847.3 Vault Sealing, Venting, and Ventilation
847.4 Drainage and Waterproofing
848 CUSTOMERS’ METERS AND REGULATORS
848.1 Location for Customers’ Meter and Regulator Installations <\/td>\n<\/tr>\n
97<\/td>\n848.2 Operating Pressures for Customers’ Meter Installations
848.3 Protection of Customers’ Meter and Regulator Installations From Damage
848.4 Installation of Meters and Regulators
849 GAS SERVICE LINES
849.1 General Provisions Applicable to Steel, Copper, and Plastic Service Lines <\/td>\n<\/tr>\n
99<\/td>\n849.2 Steel Service Lines
849.3 Ductile Iron Service Lines
849.4 Plastic Service Lines <\/td>\n<\/tr>\n
100<\/td>\n849.5 Copper Service Lines <\/td>\n<\/tr>\n
101<\/td>\n849.6 Service Line Connections to Mains <\/td>\n<\/tr>\n
102<\/td>\nChapter V Operating and Maintenance Procedures
850 OPERATING AND MAINTENANCE PROCEDURES AFFECTING THE SAFETY OF GAS TRANSMISSION AND DISTRIBUTION FACILITIES
850.1 General
850.2 Basic Requirements
850.3 Essential Features of the Operating and Maintenance Plan
850.4 Essential Features of the Emergency Plan <\/td>\n<\/tr>\n
103<\/td>\n850.5 Pipeline Failure Investigation
850.6 Prevention of Accidental Ignition <\/td>\n<\/tr>\n
104<\/td>\n850.7 Blasting Effects
850.8 Damage Prevention Program
850.9 Communication Plan <\/td>\n<\/tr>\n
105<\/td>\n851 PIPELINE MAINTENANCE
851.1 Periodic Surveillance of Pipelines
851.2 Pipeline Patrolling
851.3 Leakage Surveys
851.4 Repair Procedures for Steel Pipelines <\/td>\n<\/tr>\n
108<\/td>\nFigures
Figure 851.4.1-1 Allowable Ripple Heights <\/td>\n<\/tr>\n
109<\/td>\n851.5 Testing Repairs to Steel Pipelines or Mains
Table 851.4.4-1 Wall Thickness for Unlikely Occurrence of Burn-Through <\/td>\n<\/tr>\n
110<\/td>\n851.6 Pipeline Leak Records
851.7 Pipeline Markers
851.8 Abandoning of Transmission Facilities
851.9 Decommissioning of Transmission Facilities
851.10 Recommissioning of Transmission Facilities
851.11 Repositioning a Pipeline in Service <\/td>\n<\/tr>\n
111<\/td>\n851.12 Pressure Testing for Integrity Assessment of In-Service Pipelines
851.13 Depressurization <\/td>\n<\/tr>\n
112<\/td>\n852 DISTRIBUTION PIPING MAINTENANCE
852.1 Patrolling
852.2 Leakage Surveys
852.3 Leakage Investigation and Action <\/td>\n<\/tr>\n
113<\/td>\n852.4 Requirements for Abandoning, Disconnecting, and Reinstating Distribution Facilities
852.5 Plastic Pipe Maintenance <\/td>\n<\/tr>\n
114<\/td>\n852.6 Piping Maintenance Records
852.7 Cast Iron Pipe Maintenance
853 MISCELLANEOUS FACILITIES MAINTENANCE
853.1 Compressor Station Maintenance <\/td>\n<\/tr>\n
115<\/td>\n853.2 Procedures for Maintaining Pipe-Type and Bottle-Type Holders in Safe Operating Condition
853.3 Maintenance of Pressure-Limiting and Pressure-Regulating Stations <\/td>\n<\/tr>\n
116<\/td>\n853.4 Valve Maintenance <\/td>\n<\/tr>\n
117<\/td>\n853.5 Vault Maintenance
854 LOCATION CLASS AND CHANGES IN NUMBER OF BUILDINGS INTENDED FOR HUMAN OCCUPANCY
854.1 Monitoring
854.2 Confirmation or Revision of MAOP <\/td>\n<\/tr>\n
118<\/td>\n854.3 Pressure-Relieving or Pressure-Limiting Devices
854.4 Review of Valve Spacing
854.5 Concentrations of People in Location Classes 1 and 2
Table 854.1-1 Location Class <\/td>\n<\/tr>\n
119<\/td>\n855 PIPELINE SERVICE CONVERSIONS
855.1 General
855.2 Historical Records Study
855.3 Requirements for Conversion to Gas Service
855.4 Conversion Procedure
855.5 Records of the Conversion <\/td>\n<\/tr>\n
120<\/td>\n856 ODORIZATION
856.1 General
856.2 Odorization Equipment
856.3 Odorant Requirements
856.4 Records
856.5 Odorant Concentration Tests
857 UPRATING
857.1 General <\/td>\n<\/tr>\n
121<\/td>\n857.2 Uprating Steel Pipelines or Mains to a Pressure That Will Produce a Hoop Stress of 30% or More of SMYS
857.3 Uprating Steel or Plastic Pipelines to a Pressure That Will Produce a Hoop Stress Less Than 30% of SMYS
857.4 Uprating a Ductile Iron High-Pressure Main or System to a New and Higher Maximum Allowable Operating Pressure <\/td>\n<\/tr>\n
122<\/td>\n857.5 Uprating a Distribution System That Has Been Operating at Inches (Millimeters) of Water (Low Pressure) to a Higher Pressure
Table 857.4-1 Wall Thickness Allowance for Uprating a Ductile Iron High-Pressure Main or System <\/td>\n<\/tr>\n
123<\/td>\nChapter VI Corrosion Control
860 GENERAL
860.1 Scope
860.2 Evaluation of Existing Installations <\/td>\n<\/tr>\n
124<\/td>\n860.3 Corrective Measures
861 EXTERNAL CORROSION CONTROL FOR STEEL PIPELINES
861.1 Buried\/Submerged Installations <\/td>\n<\/tr>\n
125<\/td>\n861.2 Aboveground Piping Atmospheric Protection <\/td>\n<\/tr>\n
126<\/td>\n861.3 Harsh Environments
862 CATHODIC PROTECTION CRITERIA
862.1 Standard Criteria
862.2 Alternative Criteria
863 OPERATION AND MAINTENANCE OF CATHODIC PROTECTION SYSTEMS
863.1 Inspection of Equipment
863.2 Measurement of Cathodic Protection
863.3 Frequency of Testing
863.4 Appropriate Correction Measure
864 INTERNAL CORROSION CONTROL
864.1 General <\/td>\n<\/tr>\n
127<\/td>\n864.2 Design of New Installations <\/td>\n<\/tr>\n
128<\/td>\n865 STEEL PIPELINES IN ARCTIC ENVIRONMENTS
865.1 Special Considerations for Arctic Environments
866 STEEL PIPELINES IN HIGH-TEMPERATURE SERVICE
866.1 Special Considerations for High-Temperature Service <\/td>\n<\/tr>\n
129<\/td>\n867 STRESS CORROSION AND OTHER PHENOMENA
868 CAST IRON, WROUGHT IRON, DUCTILE IRON, AND OTHER METALLIC PIPELINES
868.1 Requirements for Cast Iron and Ductile Iron Piping Facilities Exposed to Atmosphere
868.2 Other Metallic Materials
868.3 Installation of Electrical Connections <\/td>\n<\/tr>\n
130<\/td>\nChapter VII Intentionally Left Blank <\/td>\n<\/tr>\n
131<\/td>\nChapter VIII Offshore Gas Transmission
A800 OFFSHORE GAS TRANSMISSION
A801 GENERAL
A802 SCOPE AND INTENT
A802.1 Scope
A802.2 Intent
A803 OFFSHORE GAS TRANSMISSION TERMS AND DEFINITIONS <\/td>\n<\/tr>\n
133<\/td>\nA811 QUALIFICATION OF MATERIALS AND EQUIPMENT
A814 MATERIAL SPECIFICATIONS
A814.1 Pipe Conforming to Referenced Standards and Specifications
A814.3 Weight Coating
A814.4 Flexible Pipe
A814.5 Other Requirements
A817 CONDITIONS FOR THE REUSE AND REQUALIFICATION OF PIPE
A817.1 Reuse of Steel Pipe
A817.4 Requalification of Pipeline Systems
A820 WELDING OFFSHORE PIPELINES
A821 GENERAL
A821.1 General Requirements
A821.2 Welding Processes
A821.3 Welding Procedure <\/td>\n<\/tr>\n
134<\/td>\nA823 QUALIFICATION OF PROCEDURES AND WELDERS
A826 WELD EXAMINATION REQUIREMENTS
A826.3 Examination for Quality Control of Welds on Piping Systems
A830 PIPING SYSTEM COMPONENTS AND FABRICATION DETAILS
A830.1 General
A831 PIPING SYSTEM COMPONENTS
A831.1 Valves and Pressure-Reducing Devices
A832 EXPANSION AND FLEXIBILITY
A834 SUPPORTS AND ANCHORAGE FOR EXPOSED PIPING <\/td>\n<\/tr>\n
135<\/td>\nA835 ANCHORAGE FOR BURIED PIPING
A840 DESIGN, INSTALLATION, AND TESTING
A840.1 General Provisions
A840.2 Shoreline Approaches
A841 DESIGN CONSIDERATIONS
A841.1 Design Conditions
A841.2 Installation Design Considerations <\/td>\n<\/tr>\n
136<\/td>\nA841.3 Operational Design Considerations
A842 STRENGTH CONSIDERATIONS
A842.1 Strength Consideration During Installation <\/td>\n<\/tr>\n
137<\/td>\nA842.2 Strength Considerations During Operations
Table A842.2.2-1 Design Factors for Offshore Pipelines, Platform Piping, and Pipeline Risers <\/td>\n<\/tr>\n
140<\/td>\nA843 COMPRESSOR STATIONS
A843.1 Compressor Station Design
A843.2 Electrical Facilities
A843.3 Compressor Station Equipment <\/td>\n<\/tr>\n
141<\/td>\nA844 ON-BOTTOM STABILITY
A844.1 Design Storm Conditions
A844.2 Stability Against Waves and Currents
A844.3 Shore Approaches
A844.4 Slope Failure <\/td>\n<\/tr>\n
142<\/td>\nA844.5 Soil Liquefaction
A846 VALVES
A847 TESTING
A847.1 General Provisions
A847.2 Test Pressure
A847.3 Test Medium
A847.4 Test Procedure
A847.5 Records
A847.6 Tie-Ins <\/td>\n<\/tr>\n
143<\/td>\nA847.7 Testing for Buckles
A850 OPERATING AND MAINTENANCE PROCEDURES AFFECTING THE SAFETY OF GAS TRANSMISSION FACILITIES
A850.1 General
A850.3 Essential Features of the Operating and Maintenance Plan
A850.4 Essential Features of the Emergency Plan
A850.7 Blasting Effects
A851 PIPELINE MAINTENANCE
A851.2 Pipeline Patrolling
A851.4 Above-Water and Hyperbaric Repair Procedures for Steel Pipelines <\/td>\n<\/tr>\n
144<\/td>\nA851.7 Pipeline Markers and Signs
A854 LOCATION CLASS
A860 CORROSION CONTROL OF OFFSHORE PIPELINES
A860.1 Scope
A860.2 Evaluation of Existing Installations
A861 EXTERNAL CORROSION CONTROL
A861.1 Submerged Installations <\/td>\n<\/tr>\n
146<\/td>\nA861.2 Above-Water Atmospheric Protection
A861.4 Atmospheric Corrosion Inspection
A862 CATHODIC PROTECTION CRITERIA
A862.1 Criteria
A862.3 Electrical Checks
A864 INTERNAL CORROSION CONTROL
A864.1 General <\/td>\n<\/tr>\n
147<\/td>\nChapter IX Sour Gas Service
B800 SOUR GAS SERVICE
B801 GENERAL
B802 SCOPE AND INTENT
B802.1 Scope
B802.2 Intent
B803 SOUR GAS TERMS AND DEFINITIONS <\/td>\n<\/tr>\n
148<\/td>\nB813 MARKING
B814 MATERIAL SPECIFICATIONS
B814.1 Pipe Conforming to Referenced Standards and Specifications
B820 WELDING SOUR GAS PIPELINES
B821 GENERAL
B821.1 General Requirements
B821.2 Welding Processes
B821.4 Weld Acceptance
B822 PREPARATION FOR WELDING
B822.3 Seal Welds
B822.4 Cleaning
B823 QUALIFICATION OF PROCEDURES AND WELDERS
B823.2 Requirements for Qualification of Procedures and Welders on Sour Gas Piping Systems <\/td>\n<\/tr>\n
149<\/td>\nB824 PREHEATING
B824.5 Hydrogen Bake Out of Used Pipe
B825 STRESS RELIEVING
B825.1 Carbon Steels
B825.6 Stress Relieving Temperature
B826 WELD EXAMINATION REQUIREMENTS
B826.3 Examination for Quality Control of Welds on Sour Gas Piping Systems
B830 PIPING SYSTEM COMPONENTS AND FABRICATION DETAILS
B831 PIPING SYSTEM COMPONENTS
B831.1 Valves and Pressure-Reducing Devices
B831.2 Flanges
B840 DESIGN, INSTALLATION, AND TESTING
B841 STEEL PIPE
B841.1 Steel Piping Systems Design Requirements <\/td>\n<\/tr>\n
150<\/td>\nB841.2 Installation of Steel Pipelines and Mains
B841.3 Testing After Construction
B842 OTHER MATERIALS
B842.2 Design of Plastic Piping
B842.2.2 Thermoplastic Design Limitations
B842.2.9 Plastic Pipe and Tubing Joints and Connections
B842.4 Testing Plastic Piping After Construction
B842.4.2 Test Requirements
B843 COMPRESSOR STATIONS
B843.3 Compressor Station Equipment
B843.3.1 Gas Treating Facilities
B844 PIPE-TYPE AND BOTTLE-TYPE HOLDERS <\/td>\n<\/tr>\n
151<\/td>\nB850 ADDITIONAL OPERATING AND MAINTENANCE CONSIDERATIONS AFFECTING THE SAFETY OF SOUR GAS PIPELINES
B850.1 General
B850.4 Essential Features of the Emergency Plan
B851 PIPELINE MAINTENANCE
B851.7 Pipeline Markers
B851.10 Sour Gas Pipeline Blowdown
B854 LOCATION CLASS AND CHANGES IN NUMBER OF BUILDINGS INTENDED FOR HUMAN OCCUPANCY
B854.5 Concentrations of People in Location Classes 1 and 2 <\/td>\n<\/tr>\n
152<\/td>\nTable B850.1-1 100 ppm ROE
Table B850.1-2 500 ppm ROE
Table B850.1-3 Metric Example for 100 ppm ROE
Table B850.1-4 Metric Example for 500 ppm ROE <\/td>\n<\/tr>\n
153<\/td>\nB860 CORROSION CONTROL OF SOUR GAS PIPELINES
B860.1 Scope
B860.4 Special Considerations
B861 EXTERNAL CORROSION CONTROL FOR STEEL PIPELINES
B861.1 Buried\/Submerged Installations
B864 INTERNAL CORROSION CONTROL
B864.1 General
B864.2 Design of New Installations
B867 STRESS CORROSION AND OTHER PHENOMENA <\/td>\n<\/tr>\n
155<\/td>\nMANDATORY APPENDICES
MANDATORY APPENDIX A REFERENCES <\/td>\n<\/tr>\n
160<\/td>\nMANDATORY APPENDIX B NUMBERS AND SUBJECTS OF STANDARDS AND SPECIFICATIONS THAT APPEAR IN MANDATORY APPENDIX A <\/td>\n<\/tr>\n
161<\/td>\nNONMANDATORY APPENDICES
NONMANDATORY APPENDIX C PUBLICATIONS THAT DO NOT APPEAR IN THE CODE OR MANDATORY APPENDIX A
C-1 AGA
C-2 API
C-3 ASCE
C-4 ASME
C-5 ASTM <\/td>\n<\/tr>\n
162<\/td>\nC-6 AWWA
C-7 GTI <\/td>\n<\/tr>\n
163<\/td>\nC-8 MSS
C-9 OTHER PUBLICATIONS <\/td>\n<\/tr>\n
164<\/td>\nMANDATORY APPENDIX D SPECIFIED MINIMUM YIELD STRENGTH FOR STEEL PIPE COMMONLY USED IN PIPING SYSTEMS1See para. 841.1. <\/td>\n<\/tr>\n
165<\/td>\nTable D-1 Specified Minimum Yield Strength for Steel Pipe Commonly Used in Piping Systems
Table D-1 Specified Minimum Yield Strength for Steel Pipe Commonly Used in Piping Systems <\/td>\n<\/tr>\n
166<\/td>\nTable D-2 HDB Values for Thermoplastic Materials
Table D-2 HDB Values for Thermoplastic Materials <\/td>\n<\/tr>\n
167<\/td>\nMANDATORY APPENDIX E FLEXIBILITY AND STRESS INTENSIFICATION FACTORS <\/td>\n<\/tr>\n
168<\/td>\nTable E-1 Flexibility Factor, k, and Stress Intensification Factor, i
Table E-1 Flexibility Factor, k, and Stress Intensification Factor, i <\/td>\n<\/tr>\n
173<\/td>\nMANDATORY APPENDIX F EXTRUDED HEADERS AND WELDED BRANCH CONNECTIONS1See para. 831.6.
F-1 EXTRUDED HEADERS
F-2 EXAMPLES ILLUSTRATING THE APPLICATION OF THE RULES FOR REINFORCEMENT OF WELDED BRANCH CONNECTIONS
F-2.1 Example 1
F-2.1.1 Header.
F-2.1.2 Outlet. <\/td>\n<\/tr>\n
174<\/td>\nFigure F-1 Limits of Reinforcement Zone
Figure F-2 Method of Establishing To When the Taper Encroaches on the Crotch Radius
F-2.1.3 Reinforcement Required
F-2.1.4 Reinforcement Provided by Header
F-2.1.5 Effective Area in Outlet
F-2.1M Example 1M
F-2.1.1M Header.
F-2.1.2M Outlet.
F-2.1.3M Reinforcement Required
F-2.1.4M Reinforcement Provided by Header
Figure F-1 Limits of Reinforcement Zone
Figure F-2 Method of Establishing To When the Taper Encroaches on the Crotch Radius <\/td>\n<\/tr>\n
175<\/td>\nFigure F-3 Example Showing Constant Inside Diameter of Outlet
Figure F-4 Example Showing Tapered Inside Diameter of Outlet
Figure F-3 Example Showing Constant Inside Diameter of Outlet
Figure F-4 Example Showing Tapered Inside Diameter of Outlet <\/td>\n<\/tr>\n
176<\/td>\nFigure F-5 Rules for Reinforcement of Welded Branch Connections
Figure F-5 Rules for Reinforcement of Welded Branch Connections <\/td>\n<\/tr>\n
177<\/td>\nFigure F-6 Figure for Examples 1 and 1M
F-2.1.5M Effective Area in Outlet
F-2.2 Example 2
F-2.2.1 Header.
F-2.2.2 Outlet.
Figure F-6 Figure for Examples 1 and 1M <\/td>\n<\/tr>\n
178<\/td>\nF-2.2.3 Reinforcement Required
F-2.2.4 Reinforcement Provided
F-2.2.5 Effective Area in Outlet
F-2.2M Example 2M
F-2.2.1M Header.
F-2.2.2M Outlet.
F-2.2.3M Reinforcement Required
F-2.2.4M Reinforcement Provided
F-2.2.5M Effective Area in Outlet <\/td>\n<\/tr>\n
179<\/td>\nFigure F-7 Figure for Examples 2 and 2M
Figure F-7 Figure for Examples 2 and 2M <\/td>\n<\/tr>\n
180<\/td>\nMANDATORY APPENDIX G TESTING OF WELDERS LIMITED TO WORK ON LINES OPERATING AT HOOP STRESSES OF LESS THAN 20% OF THE SPECIFIED MINIMUM YIELD STRENGTH1See para. 823.1.
G-1 TEST PROCEDURES <\/td>\n<\/tr>\n
181<\/td>\nMANDATORY APPENDIX H FLATTENING TEST FOR PIPE1See para. 817.1.3(b).
H-1 TEST PROCEDURES <\/td>\n<\/tr>\n
182<\/td>\nMANDATORY APPENDIX I END PREPARATIONS FOR BUTTWELDING
I-1 EXPLANATORY NOTES
I-1.1 General
I-1.2 Unequal Internal Diameters
I-1.3 Unequal External Diameters
I-1.4 Unequal Internal and External Diameters <\/td>\n<\/tr>\n
183<\/td>\nFigure I-1 Welding Details for Openings Without Reinforcement Other Than That in Header and Branch Walls
Figure I-2 Welding Details for Openings With Localized-Type Reinforcement
Figure I-1 Welding Details for Openings Without Reinforcement Other Than That in Header and Branch Walls
Figure I-2 Welding Details for Openings With Localized-Type Reinforcement <\/td>\n<\/tr>\n
184<\/td>\nFigure I-3 Welding Details for Openings With Complete Encirclement Types of Reinforcement
Figure I-3 Welding Details for Openings With Complete Encirclement Types of Reinforcement <\/td>\n<\/tr>\n
185<\/td>\nFigure I-3.1 Pressurized Hot Tap Tee Reinforcing Sleeve End Fillet Weld Design
Figure I-3.1 Pressurized Hot Tap Tee Reinforcing Sleeve End Fillet Weld Design <\/td>\n<\/tr>\n
186<\/td>\nFigure I-4 Acceptable Combinations of Pipe End Preparations
Figure I-4 Acceptable Combinations of Pipe End Preparations <\/td>\n<\/tr>\n
187<\/td>\nFigure I-5 Acceptable Design for Unequal Wall Thickness
Figure I-5 Acceptable Design for Unequal Wall Thickness <\/td>\n<\/tr>\n
189<\/td>\nFigure I-6 Offset Limits Due to Misalignment at Unequal Thickness Joints
Figure I-6 Offset Limits Due to Misalignment at Unequal Thickness Joints <\/td>\n<\/tr>\n
190<\/td>\nFigure I-7 Recommended Attachment Details of Flanges
Figure I-7 Recommended Attachment Details of Flanges <\/td>\n<\/tr>\n
191<\/td>\nTable I-1 Lightweight Flanges
Table I-1 Lightweight Flanges <\/td>\n<\/tr>\n
192<\/td>\nTable I-1M Lightweight Flanges (Metric Dimensions)
Table I-1M Lightweight Flanges (Metric Dimensions) <\/td>\n<\/tr>\n
193<\/td>\nNONMANDATORY APPENDIX J COMMONLY USED CONVERSION FACTORS1Extracted partially from ASME SI-1. <\/td>\n<\/tr>\n
194<\/td>\nTable J-1 Commonly Used Conversion Factors
Table J-1 Commonly Used Conversion Factors <\/td>\n<\/tr>\n
196<\/td>\nTable J-2 List of SI Units for Use With ASME B31.8 Code
Table J-2 List of SI Units for Use With ASME B31.8 Code <\/td>\n<\/tr>\n
198<\/td>\nNONMANDATORY APPENDIX L DETERMINATION OF REMAINING STRENGTH OF CORRODED PIPE <\/td>\n<\/tr>\n
199<\/td>\nNONMANDATORY APPENDIX M GAS LEAKAGE CONTROL CRITERIA1See para. 852.2.
M-1 SCOPE
M-2 DEFINITIONS (APPLICABLE TO THIS APPENDIX ONLY)
M-3 LEAKAGE SURVEY AND TEST METHODS <\/td>\n<\/tr>\n
201<\/td>\nTable M-4-1 Leak Detection Instruments: Type and General Usage
M-4 TYPICALLY AVAILABLE INSTRUMENTS FOR THE DETECTION OF GAS
Table M-4-1 Leak Detection Instruments: Type and General Usage <\/td>\n<\/tr>\n
202<\/td>\nM-5 LEAKAGE CLASSIFICATION AND ACTION CRITERIA
M-5.1 General
M-5.2 Leak Grades
M-5.3 Leak Classification and Action Criteria
M-5.4 Reevaluation of a Leak
M-6 PINPOINTING
M-6.1 Scope
M-6.2 Procedure <\/td>\n<\/tr>\n
203<\/td>\nTable M-5.3-1 Leak Classification and Action Criteria: Grade 1
M-6.3 Precautions
Table M-5.3-1 Leak Classification and Action Criteria: Grade 1 <\/td>\n<\/tr>\n
204<\/td>\nTable M-5.3-2 Leak Classification and Action Criteria: Grade 2
Table M-5.3-3 Leak Classification and Action Criteria: Grade 3
Table M-5.3-2 Leak Classification and Action Criteria: Grade 2
Table M-5.3-3 Leak Classification and Action Criteria: Grade 3 <\/td>\n<\/tr>\n
205<\/td>\nNONMANDATORY APPENDIX N RECOMMENDED PRACTICE FOR HYDROSTATIC TESTING OF PIPELINES IN PLACE
N-1 INTRODUCTION
N-2 PLANNING
N-3 FILLING
N-4 TESTING <\/td>\n<\/tr>\n
206<\/td>\nN-5 DETERMINATION OF PRESSURE REQUIRED TO PRODUCE YIELDING
N-6 LEAK TESTING
N-7 RECORDS <\/td>\n<\/tr>\n
207<\/td>\nNONMANDATORY APPENDIX P NOMENCLATURE FOR FIGURES <\/td>\n<\/tr>\n
208<\/td>\nMANDATORY APPENDIX Q SCOPE DIAGRAMS <\/td>\n<\/tr>\n
209<\/td>\nFigure Q-1 Scope of ASME B31.8 Transmission Piping Offshore
Figure Q-1 Scope of ASME B31.8 Transmission Piping Offshore <\/td>\n<\/tr>\n
210<\/td>\nFigure Q-2 Scope of ASME B31.8 Transmission Piping Onshore
Figure Q-2 Scope of ASME B31.8 Transmission Piping Onshore <\/td>\n<\/tr>\n
211<\/td>\nFigure Q-3 Scope of ASME B31.8 Distribution Piping
Figure Q-3 Scope of ASME B31.8 Distribution Piping <\/td>\n<\/tr>\n
212<\/td>\nNONMANDATORY APPENDIX R ESTIMATING STRAIN IN DENTS
R-1 STRAIN
R-2 ESTIMATING STRAIN <\/td>\n<\/tr>\n
213<\/td>\nFigure R-1-1 Method for Estimating Strain in Dents
Figure R-1-1 Method for Estimating Strain in Dents <\/td>\n<\/tr>\n
214<\/td>\n\u2009 INDEX <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ASME B31.8 – 2022 – Gas Transmission and Distribution Piping Systems<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASME<\/b><\/a><\/td>\n2022<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":418992,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2643],"product_tag":[],"class_list":{"0":"post-418986","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-asme","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/418986","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/418992"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=418986"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=418986"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=418986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}