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ASME B31.5 - 2022 - Refrigeration Piping and Heat Transfer Components, 2022
- CONTENTS
- FOREWORD
- ASME B31 COMMITTEE ROSTER
- CORRESPONDENCE WITH THE B31 COMMITTEE
- INTRODUCTION
- ASME B31.5-2022 SUMMARY OF CHANGES
- Chapter I Scope and Definitions [Go to Page]
- 500 GENERAL STATEMENTS [Go to Page]
- 500.1 Scope
- 500.2 Definitions
- 500.3 Nomenclature
- Chapter II Design [Go to Page]
- 501 DESIGN CONDITIONS [Go to Page]
- 501.1 General
- 501.2 Pressure
- 501.3 Temperature
- 501.4 Ambient Influences
- 501.5 Dynamic Effects
- 501.6 Weight Effects
- 501.7 Thermal Expansion and Contraction Loads
- 502 DESIGN CRITERIA [Go to Page]
- 502.1 General
- 502.2 Pressure–Temperature Design Criteria for Piping Components
- 502.3 Allowable Stresses and Other Stress Limits
- 502.4 Allowances
- 503 CRITERIA FOR DESIGN OF PIPING COMPONENTS
- 504 PRESSURE DESIGN OF PIPING COMPONENTS [Go to Page]
- 504.1 Straight Pipe
- 504.2 Curved Segments of Pipe
- 504.3 Intersections
- 504.4 Closures
- 504.5 Pressure Design of Flanges and Blanks
- 504.6 Headers
- 504.7 Design of Other Pressure-Containing Components
- 505 PIPE [Go to Page]
- 505.1 General
- 505.2 Nonferrous Pipe or Tube
- 506 FITTINGS, BENDS, AND INTERSECTIONS [Go to Page]
- 506.1 Fittings
- 506.2 Bends and Intersections
- 506.3 Limitation on Materials for Fittings
- 507 VALVES
- 508 FLANGES, BLANKS, FLANGE FACINGS, GASKETS, AND BOLTING [Go to Page]
- 508.1 Flanges
- 508.2 Blanks
- 508.3 Flange Facings
- 508.4 Gaskets
- 508.5 Bolting
- 510 PIPING JOINTS [Go to Page]
- 510.1 General
- 511 WELDED JOINTS [Go to Page]
- 511.1 General
- 511.2 Butt Welds
- 511.3 Socket Welds
- 511.4 Fillet Welds
- 511.5 Seal Welds
- 512 FLANGED JOINTS
- 513 EXPANDED JOINTS
- 514 THREADED JOINTS
- 515 FLARED, FLARELESS, AND COMPRESSION JOINTS [Go to Page]
- 515.1 Selection and Application
- 515.2 Piping Joints With Applicable Standards
- 515.3 Piping Joints Without Applicable Standards
- 517 BRAZED AND SOLDERED JOINTS
- 518 SLEEVE COUPLED AND OTHER NOVEL OR PATENTED JOINTS
- 519 EXPANSION AND FLEXIBILITY [Go to Page]
- 519.1 General
- 519.2 Concepts
- 519.3 Properties
- 519.4 Analysis for Bending Flexibility
- 520 DESIGN OF PIPE SUPPORTING ELEMENTS [Go to Page]
- 520.1 General
- 521 DESIGN LOADS FOR PIPE SUPPORTING ELEMENTS [Go to Page]
- 521.1 General
- 521.2 Resilient Variable-Support and Constant-Support Types
- 521.3 Design Details
- Chapter III Materials [Go to Page]
- 523 MATERIALS — GENERAL REQUIREMENTS [Go to Page]
- 523.1 Materials and Specifications
- 523.2 Limitations on Materials
- 523.3 Deterioration of Materials in Service
- 524 MATERIALS APPLIED TO MISCELLANEOUS PARTS [Go to Page]
- 524.1 Gaskets
- 524.2 Bolting
- Chapter IV Dimensional Requirements [Go to Page]
- 526 DIMENSIONAL REQUIREMENTS FOR STANDARD AND NONSTANDARD PIPING COMPONENTS [Go to Page]
- 526.1 Standard Piping Components
- 526.2 Nonstandard Piping Components
- 526.3 Threads
- Chapter V Fabrication and Assembly [Go to Page]
- 527 WELDING [Go to Page]
- 527.1 Material
- 527.2 Preparation
- 527.3 Procedure
- 527.4 Responsibility
- 527.5 Qualification Records
- 527.6 Defect Repairs
- 528 BRAZING AND SOLDERING [Go to Page]
- 528.1 Brazing Materials
- 528.2 Brazing Preparation and Procedures
- 528.3 Soldering Materials
- 528.4 Soldering Preparation and Procedure
- 529 BENDING — HOT AND COLD [Go to Page]
- 529.1 Radii of Bends
- 529.2 Procedure
- 529.3 Heat Treatment
- 530 FORMING [Go to Page]
- 530.1 Procedure
- 530.2 Heat Treatment
- 531 HEAT TREATMENT [Go to Page]
- 531.1 Heating and Cooling Method
- 531.2 Preheating
- 531.3 Postheat Treatment
- 535 ASSEMBLY [Go to Page]
- 535.1 General
- 535.2 Bolting Procedure
- 535.3 Threaded Piping
- 535.4 Welded Joints
- 535.5 Brazed Sleeve Joints
- 535.6 Soldered Sleeve Joints
- 535.7 Flare-Type Fitting Joints
- 535.8 Flareless and Compression-Type Fitting Joints
- 535.9 Assembly of Hangers
- 535.10 Piping Identification
- Chapter VI Examination, Inspection, and Testing [Go to Page]
- 536 EXAMINATION [Go to Page]
- 536.1 Definition
- 536.2 Responsibility
- 536.3 Examination Personnel Qualification and Certification
- 536.4 Required Examination
- 536.5 Supplementary Examination
- 536.6 Types of Examinations
- 537 INSPECTION [Go to Page]
- 537.1 Definition
- 537.2 Responsibility
- 537.3 Rights of Inspectors
- 537.4 Qualifications of the Owner’s Inspector
- 538 TESTING [Go to Page]
- 538.1 Testing Before Erection or Assembly
- 538.2 Preparation for Testing
- 538.3 Factory Testing of Refrigerant Piping
- 538.4 Field Testing of Refrigerant Piping
- 538.5 Testing Medium for Refrigerant Piping
- 538.6 Pressure Tests for Secondary Coolant Piping
- 538.7 Pressure Gages
- 538.8 Repair of Joints
- 539 RECORDS [Go to Page]
- 539.1 Definition
- 539.2 Responsibility
- 539.3 Extent and Retention of Records
- Figures [Go to Page]
- Figure 502.3.2-1 Stress Range Reduction Factors
- Figure 504.3.1-1 Reinforcement of Branch Connections
- Figure 504.3.1-2 Extruded Outlet Header Notation
- Figure 504.3.1-3 Mechanically Formed Tee Connections in Copper Materials
- Figure 504.5.3-1 Blanks
- Figure 519.4.5-1 Bends
- Figure 519.4.5-2 Branch Connections
- Figure 523.2.2-1 Reduction in Minimum Design Metal Temperature Without Impact Testing
- Figure 527.1.2-1 Typical Joints With Backing Ring
- Figure 527.2.1-1 Butt Welding End Preparation
- Figure 527.2.1-2 Internal Trimming for Butt Welding of Piping Components With Internal Misalignment
- Figure 527.3.3-1 Fillet Weld Size
- Figure 527.3.3-2 Welding Details for Slip-On and Socket Welding Flanges, and Some Acceptable Types of Flange Attachment Welds
- Figure 527.3.3-3 Minimum Welding Dimensions Required for Socket Welding Components Other Than Flanges
- Figure 527.3.5-1 Typical Welded Branch Connection Without Additional Reinforcement
- Figure 527.3.5-2 Typical Welded Branch Connection With Additional Reinforcement
- Figure 527.3.5-3 Typical Welded Angular Branch Connection Without Additional Reinforcement
- Figure 527.3.5-4 Some Acceptable Types of Welded Branch Attachment Details Showing Minimum Acceptable Welds
- Figure 527.3.5-5 Some Acceptable Details for Integrally Reinforced Outlet Fittings
- Figure 527.3.6-1 Acceptable Welds for Flat Plate Closures
- Figure 527.3.6-2 Unacceptable Welds for Flat Plate Closures
- Tables [Go to Page]
- Table 500.2-1 Refrigerant Safety Classifications
- Table 500.2-2 Safety Classifications for Refrigerant Blends
- Table 502.3.1-1 Maximum Allowable Stress Values, ksi (Multiply by 1,000 to Obtain psi)
- Table 514-1 Minimum Thickness of External Threaded Components
- Table 519.3.1-1 Thermal Expansion Data, e (USC and SI)
- Table 519.3.2-1 Moduli of Elasticity, E (USC and SI)
- Table 519.3.6-1 Flexibility Factor, k, and Stress Intensification Factor, i
- Table 521.3.1-1 Minimum Sizes of Straps, Rods, and Chains for Hangers
- Table 523.1-1 Acceptable Materials — Specifications
- Table 523.2.2-1 Impact Exemption Temperatures
- Table 526.1-1 Dimensional Standards
- Table 531.2.1-1 Heat Treatment of Welds
- Table B-1 Nomenclature
- MANDATORY APPENDIX I REFERENCED STANDARDS
- NONMANDATORY APPENDIX A SELECTING APPLICABLE PIPING CODES [Go to Page]
- A-1 GENERAL
- A-2 ASME B31 CODES
- A-3 OTHER PIPING CODES
- NONMANDATORY APPENDIX B NOMENCLATURE [Go to Page]
