ASME NM.1 2022

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ASME NM.1-2022 Thermoplastic Piping Systems

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ASME	2022	181

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Description

This Standard prescribes requirements for the design, materials, fabrication, erection, examination, testing, and inspection of thermoplastic piping systems.

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PDF Pages	PDF Title
4	CONTENTS
8	FOREWORD
9	ASME NPPS COMMITTEE ROSTER
12	CORRESPONDENCE WITH THE NPPS COMMITTEE
14	INTRODUCTION
17	ASME NM.1-2022 SUMMARY OF CHANGES
20	Chapter 1 Scope and Definitions 1-1 SCOPE 1-2 GENERAL
21	1-2.1 Content and Coverage 1-3 DEFINITIONS
26	1-4 ABBREVIATIONS
27	1-5 STATUS OF APPENDICES
28	Tables Table 1-4-1 Abbreviations
29	Table 1-5-1 Status of Appendices
30	Chapter 2 Design 2-1 DESIGN CONDITIONS 2-1.1 General 2-1.2 Pressure, Temperature, and Other Loads
31	2-2 DESIGN CRITERIA 2-2.1 General 2-2.2 Pressure–Temperature Ratings for Piping Components
32	2-2.3 Allowable Stress Values and Other Stress Limits for Piping Components
33	2-2.4 Design Allowances
34	2-3 PRESSURE DESIGN OF PIPING COMPONENTS 2-3.1 Criteria for Pressure Design of Piping Components 2-3.2 Pressure Design of Components
35	Table 2-3.2.2-1 Geometric Shape Rating (GSR) for HDPE Fittings
36	Figures Figure 2-3.2.2-1 Nomenclature for 90-deg Mitered Elbows
37	2-3.3 Analysis of Piping Components Table 2-3.2.2-2 Design Factor (DF)
38	Table 2-3.2.2-3 Pressure Rating (PR) at 23°C (73°F)
39	Figure 2-3.2.4-1 Tapered Transition Joint
41	2-4 OTHER DESIGN CONSIDERATIONS 2-4.1 Design of Pipe Support Elements
42	Figure 2-4.1.1-1 U-Bolt Used as a Guide
43	2-4.2 Moduli of Elasticity
44	Chapter 3 Materials 3-1 GENERAL 3-2 MATERIALS AND SPECIFICATIONS 3-2.1 Listed Materials 3-2.2 Unlisted Materials 3-2.3 Unknown Thermoplastic Materials 3-2.4 Size or Thickness 3-2.5 Limitations on Materials 3-2.6 Marking of Thermoplastic Materials or Products
45	3-3 THERMOPLASTIC COMPOSITE MATERIALS
46	Chapter 4 Standards for Piping Components 4-1 GENERAL 4-2 REFERENCE DOCUMENTS 4-2.1 Standards and Specifications 4-2.2 Additional References
47	Table 4-2.1-1 Specifications and Standards
53	Table 4-2.1-2 Procurement Information
54	Chapter 5 Fabrication, Assembly, and Erection 5-1 GENERAL 5-1.1 Scope 5-1.2 Joining Thermoplastic Piping Components 5-1.3 Procedure Specification
55	5-1.4 Standard Fusing Procedure Specification 5-1.5 Procedure Qualification Record Table 5-1.4-1 Fusing Variables Procedure Specification — Polyethylene and Polyamide-12 Pipe Butt Fusing
56	5-1.6 Performance Qualification 5-1.7 Performance Qualification Test Record Table 5-1.4-2 Fusing Variables Procedure Specification — Polyethylene, Polyamide-12, and Cross-Linked Polyethylene Pipe Electrofusion Table 5-1.4-3 Fusing Variables Procedure Specification — Polyethylene and Polyamide-12 Pipe Manual Butt Fusing
57	5-1.8 Variables Table 5-1.4-4 Fusing Variables Procedure Specification — Polyethylene Sidewall Fusing
58	5-1.9 Organizational Responsibility
59	5-1.10 Ownership Transfers
60	5-1.11 Qualification Tests
61	Figure 5-1.11-1 Fusion Positions
62	5-2 THERMOPLASTIC FUSING REQUIREMENTS 5-2.1 Scope 5-2.2 Procedure Qualifications 5-2.3 Fusion Performance Qualifications Figure 5-1.11-2 Fusion Test Positions
63	5-2.4 Variables
64	5-2.5 Thermoplastic Fusing Equipment Qualifications 5-2.6 Thermoplastic Joining Using Heat-Fusion Methods Table 5-2.4.3-1 Pipe Fusing Diameter Limits
65	Figure 5-2.6-1 Heat Fusion Joints
66	Figure 5-2.6.1-1 Required Minimum Melt Bead Size
67	5-2.7 Application-Specific Joint Requirements for Heat Fusion Table 5-2.6.1-1 Maximum Heater Plate Removal Time for Polyethylene Butt and Sidewall Fusion Table 5-2.6.1-2 Maximum Heater Plate Removal Time for Polypropylene Butt and Sidewall Fusion Table 5-2.6.1-3 Maximum Heater Plate Removal Time for PVDF Butt Fusion
68	5-2.8 Examination and Tests
69	Figure 5-2.8.1.1-1 Cross Section of Upset Beads for Butt-Fused Pipe
70	Figure 5-2.8.1.1-2 Cross Section of Upset Beads for Sidewall-Fused Fitting (Profile at Crotch of Fitting)
71	Table 5-2.8.1.2-1 Pipe Fiber Stresses — Elevated-Temperature Sustained-Pressure Test Table 5-2.8.1.2-2 Pipe Fiber Stresses — Minimum Hydraulic Burst Pressure
72	Figure 5-2.8.1.3-1 Bend Test Specimen Removal, Configurations, and Testing
75	Figure 5-2.8.1.3-2 Electrofusion Bend Test
76	Figure 5-2.8.1.4-1 HSTIT Specimen Configuration and Dimensions Table 5-2.8.1.4-1 Testing Speed Requirements
77	Figure 5-2.8.1.4-2 HSTIT Specimen Failure Examples
78	Figure 5-2.8.1.4-3 Electrofusion Peel Test
79	Figure 5-2.8.1.4-4 Short-Term Hydrostatic Test Specimen
81	Table 5-2.8.2.2-1 Electrofusion Procedure Qualification Test Coupon Required
83	5-3 THERMOPLASTIC SOLVENT FUSION REQUIREMENTS 5-3.1 Scope 5-3.2 Procedure Qualifications 5-3.3 Performance Qualifications
84	5-3.4 Variables 5-3.5 Thermoplastic Joining Using Solvent Cement Figure 5-3.5-1 Solvent Fusion Joint Table 5-3.4-1 Joining Variables Procedure Specification Solvent Cement
85	Table 5-3.5-1 PVC/CPVC — Applicator Selection Guide
86	5-3.6 Examinations and Tests
87	Table 5-3.5-2 PVC/CPVC — Average Handling and Setup Times Table 5-3.5-3 PVC/CPVC — Average Cure Times
88	Figure 5-3.6.2-1 Solvent Fusion Specimens
90	Chapter 6 Inspection, Examination, and Testing 6-1 INSPECTION 6-1.1 Responsibility for Inspection 6-1.2 Rights of the Owner’s Inspector 6-1.3 Qualifications of the Owner’s Inspector 6-2 EXAMINATION 6-2.1 Responsibility for Examination
91	6-2.2 Examination Requirements 6-2.3 Extent of Required Examination
92	6-2.4 Supplementary Examination 6-2.5 Examination Personnel 6-2.6 Examination Procedures 6-2.7 Types of Examination
93	6-3 TESTING 6-3.1 Required Leakage Test 6-3.2 General Requirements for Leakage Tests
94	6-3.3 Preparation for Leakage Test 6-3.4 Hydrostatic Leakage Test
95	6-3.5 Pneumatic Leakage Test 6-3.6 Initial Service Leakage Test
96	Chapter 7 Use of Metallic Piping Lined With Thermoplastics 7-1 GENERAL 7-2 STANDARDS 7-3 MATERIALS 7-4 DESIGN CONSIDERATIONS 7-4.1 Qualifications of the Designer
97	7-4.2 Design Pressure 7-4.3 Design Temperature 7-4.4 Design Criteria
100	7-5 FABRICATION AND INSTALLATION 7-5.1 Assembler Qualifications 7-5.2 Recommended Installation Practices 7-5.3 Flangeless or Reduced-Flanged Piping 7-5.4 Connections of Thermoplastic-Lined Metallic Piping to Other Types of Piping
101	7-5.5 Cold-Temperature Installation 7-5.6 Field Fabrication Certification 7-5.7 Bonder Qualification for Fusion Welding Liners 7-5.8 Cleaning Procedures 7-5.9 External Paint Systems 7-5.10 Buried Piping
102	7-6 STORAGE AND HANDLING GUIDELINES 7-7 INSPECTION, EXAMINATION, AND TESTING 7-7.1 Inspection
103	7-7.2 Examination
105	7-7.3 Testing
108	Chapter 8 Multilayered Reinforced Thermoplastic Piping Systems 8-1 SCOPE 8-2 APPLICABILITY 8-3 DESIGN 8-3.1 Project Application Information 8-3.2 Maximum Allowable Operating Pressure
109	8-3.3 Minimum Allowable Operating Pressure 8-3.4 Minimum Qualified Pressure 8-3.5 Surge Pressure 8-3.6 Maximum Allowable Operating Temperature 8-3.7 Maximum Qualified Temperature 8-3.8 Minimum Allowable Operating Temperature 8-3.9 Minimum Qualified Temperature 8-3.10 Temperature Fluctuations 8-3.11 Design Life 8-3.12 Fittings and Joints 8-3.13 System Supports
110	8-3.14 Minimum Operating Bend Radius 8-3.15 Fluid Composition 8-3.16 Sour Service 8-3.17 Additional Design Considerations 8-4 FABRICATION, ASSEMBLY, AND ERECTION 8-4.1 Fabrication 8-4.2 Assembly and Erection
111	8-4.3 Installation
112	8-5 EXAMINATION, INSPECTION, AND TESTING 8-5.1 General 8-5.2 Examination 8-5.3 Inspection 8-5.4 Testing
114	MANDATORY APPENDICES MANDATORY APPENDIX I FUSING AND ELECTROFUSING OF POLYAMIDE-11 THERMOPLASTIC PIPING; AND FUSING OF POLYPROPYLENE, POLY(VINYLIDENE FLUORIDE), AND POLY(TETRAFLUOROETHYLENE) PLASTIC LINERS OF LINED STEEL PIPE I-1 GENERAL REQUIREMENTS I-2 SCOPE I-3 JOINING PROCEDURE I-4 JOINING PROCEDURES QUALIFIED BY EMPLOYERS OR AGENTS
115	I-5 EVALUATION OF TEST SPECIMENS I-6 SIZE RANGE FOR SPECIMENS I-7 TEST METHODS REQUIRED FOR PROCEDURE QUALIFICATION
117	Figure I-7.7-1 Instruction on Preparing and Cutting Electrofusion Coupling for Crush Test
118	Figure I-7.8-1 Joint Crush Specimens in Vise I-8 ESSENTIAL VARIABLES FOR FUSING PA-11
119	Table I-8-1 Essential Variables for Heat-Fusing JPS for PA-11 Table I-8-2 Essential Variables for Electrofusion JPS for PA-11 Electrofusion Couplings
120	Table I-8-3 Essential Variables for Heat Fusion JPS for PP, PVDF, and PTFE/PFA Liners
121	Figure I-8.2-1 Polyethylene Pipe Butt-Fusion Joint O.D. Bead (Cross-Sectional View)
122	Figure I-9.1-1 Cross-Sectional View of PA-11 Butt-Fusion Bead I-9 VERIFICATION OF ESSENTIAL VARIABLES
123	Figure I-9.2-1 Cross-Sectional View of an Electrofusion Coupling Figure I-9.2-2 Fit-Up Gap
124	Table I-9.3-1 Steel Pipe Liner Thickness for PP, PVDF, and PTFE/PFA Liners
125	Figure I-9.3-1 Cross-Sectional View of a PP and PVDF Butt-Fusion Liner Bead Formed Against the Heater Plate
126	I-10 JOINING PROCEDURE SPECIFICATION I-11 QUALIFICATION OF A FUSING JPS
127	I-12 QUALIFICATION OF AN ELECTROFUSION JPS I-13 FUSING OPERATOR QUALIFICATION
131	MANDATORY APPENDIX II THREADED THERMOPLASTIC CONNECTIONS II-1 SCOPE II-2 THREADED JOINT DESIGN
132	Table II-1.3-1 Pressure Ratings for Molded PVC and CPVC Threaded Adapters
134	Table II-2.5.2-1 Pressure Ratings for PVC and CPVC Field-Threaded Pipe Ends
135	Figure III-3-1 Solvent-Cement-Weld Shrink-Back Appearance (Cross-Sectional View) MANDATORY APPENDIX III ACCEPTANCE CRITERIA FOR THERMOPLASTIC JOINTS III-1 SCOPE III-2 POLYETHYLENE (HDPE) BUTT-FUSED JOINTS III-3 PVC AND CPVC SOLVENT-CEMENT-WELDED JOINTS
136	MANDATORY APPENDIX IV STRESS INTENSIFICATION FACTORS AND FLEXIBILITY FACTORS
137	Table IV-1 Stress Intensification Factors, i, and Flexibility Factors, k, for High-Density Polyethylene
141	MANDATORY APPENDIX V ONE-PIECE THERMOPLASTIC FLANGES V-1 SCOPE V-2 DESIGN
142	Figure V-1.1-1 Socket Configuration Figure V-1.2-1 Threaded Configuration Figure V-2.3-1 One-Piece Thermoplastic Flange With Reinforcing Rings V-3 PROOF-TESTING REQUIREMENTS FOR ONE-PIECE THERMOPLASTIC FLANGES
143	V-4 SUBMITTAL INFORMATION FOR ONE-PIECE THERMOPLASTIC FLANGES
145	NONMANDATORY APPENDICES NONMANDATORY APPENDIX A COMPONENTS FOR THERMOPLASTIC LAP-JOINT FLANGE CONNECTIONS A-1 SCOPE A-2 GENERAL REQUIREMENTS FOR BACKUP RINGS FOR TLJF CONNECTIONS
146	Table A-2.1-1 NPS Backup Rings for Thermoplastic Pipe
148	Table A-2.1-2 Metric Backup Rings for Thermoplastic Pipe
150	A-3 PROOF-TEST REQUIREMENTS FOR TLJF CONNECTIONS A-4 DESIGN REQUIREMENTS FOR TLJF ADAPTERS
151	Table A-2.4-1 Solvent-Cement-Weld Socket PVC and CPVC Lap-Joint Flanges
152	Table A-2.4-2 PVC and CPVC Spigot (Spig) Flange
153	Table A-2.4-3 PVC and CPVC Threaded Lap-Joint Flange
154	Table A-2.4-4 Steel Backup Rings for ABS Flange Adapters
155	Table A-3-1 Proof-Test Requirements for TLJF Connections
156	Figure A-4.3.1-1 Thermoplastic Flange Adapter — Typical for PE, PP, and PVDF Butt-Fused Lap-Joint Flange Connections
157	Figure A-4.3.2-1 Typical ISO or DVS Metric Spigot Socket-Fusion Flange Adapters
158	Figure A-4.3.2-2 Typical ISO or DVS Metric Flange Adapters for Socket Fusing
159	Figure A-4.3.2-3 Special ISO or DVS Metric Butt-Fusion Flange Adapter for Higher-Pressure Connections
160	Table A-4.4-1 Full-Face ABS Socket Flange Adapter
161	Table A-4.4-2 ABS Socket Flange Adapter
162	Table A-5.1-1 Acceptable Methods for Installing Thermoplastic Flange Adapters to Thermoplastic Pipe and Fittings A-5 METHODS OF INSTALLING FLANGE ADAPTERS ONTO THERMOPLASTIC PIPES AND FITTINGS A-6 FLANGE-TO-FLANGE CONNECTIONS
163	Figure A-5.2-1 Transistor Flange Arrangement Figure A-5.2-2 Solid PVDF Flange and Backup Ring to Thermoplastic-Lined Metal Pipe
164	Figure A-5.3-1 One-Piece Flange Figure A-5.3-2 Flange Adapter A-7 GASKETS
165	Table A-7.2-1 Gasket Requirements for Thermoplastic Flanges A-8 TIGHTENING OF BOLTS A-9 WASHERS, BOLTS, NUTS, AND STUDS
166	Figure A-9.4-1Drawings for Bolts With Nutsand Stud Bolts With Nuts A-10 BOLTED JOINT ASSEMBLY RECORDS
167	NONMANDATORY APPENDIX B DESIGN REQUIREMENTS FOR BURIED PIPING B-1 INTRODUCTION
168	B-2 LOADS
169	Table B-2.2.2.1-1 Soil Pressure Under H-20 Load Without Impact Factor (Flexible Pavement or Unpaved Roads) Table B-2.2.2.1-2 Soil Pressure Under H-20 Load on Rigid Pavement With Impact Factor
170	B-3 PIPING ANALYSIS
172	B-4 SOIL
173	Table B-4.2.1-1 Typical Soil Unit Weight Table B-4.2.2-1 Eʹ Values for Typical Soils
174	Table B-4.2.2-2 Eʹ Values per Depth of Cover Table B-4.2.2-3 Native Soil Eʹ
175	Table B-4.2.2-4 Soil Support Factor, FS B-5 REFERENCES
177	NONMANDATORY APPENDIX C PRESSURE SURGE FROM FLUID TRANSIENT C-1 LIQUID FLUID FLOW C-2 WAVE VELOCITY C-3 PRESSURE SURGE
178	Table C-2-1 Pipe Wall Flexibility Reduction Factors, ψC
179	NONMANDATORY APPENDIX D MULTILAYERED REINFORCED THERMOPLASTIC PIPING SYSTEM(S) OPERATION, MAINTENANCE, AND REPAIR D-1 SCOPE D-2 GENERAL D-3 OPERATION D-4 MAINTENANCE D-5 REPAIR