ASME B16.51 2021

$98.04

ASME B16.51 – 2021 – Copper and Copper Alloy Press-Connect Pressure Fittings

Published By	Publication Date	Number of Pages
ASME	2021	30

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Description

This Standard establishes requirements for cast copper alloy, wrought copper, and wrought copper alloy, press-connect pressure fittings for use with hard drawn seamless copper water tube conforming to ASTM B88 for piping systems conveying water. The press-connect system (tube, fitting and joint) conforming to this standard is for use at a maximum pressure of 1380 kPa (200 psi) over the temperature range from 0°C to 93°C (32°F to 200°F). This Standard provides requirements for fittings suitable for press-connect joining and covers size designations, pressure-temperature ratings, terminology, dimensions and tolerances, materials, design qualification, required installation instructions, and markings.

PDF Catalog

PDF Pages	PDF Title
4	CONTENTS
6	FOREWORD
7	ASME B16 COMMITTEE ROSTER
8	CORRESPONDENCE WITH THE B16 COMMITTEE
10	ASME B16.51-2021 SUMMARY OF CHANGES
11	LIST OF CHANGES IN RECORD NUMBER ORDER
12	1 SCOPE 2 GENERAL 2.1 Convention 2.2 Relevant Units 2.3 References 2.4 Quality Systems 3 TERMINOLOGY 3.1 Abbreviations 3.2 Definitions
13	4 SIZE 5 MARKING 6 MATERIAL 6.1 Wrought Copper Alloys 6.2 Cast Copper Alloys 6.3 Elastomers (Seals) 6.4 Seal Lubricant 7 LAYING LENGTHS 8 TUBE STOPS
14	9 DESIGN 9.1 General 9.2 Out-of-Roundness of Fitting End (P or FTG) 9.3 Inside Diameter of Fitting 9.4 Wall Thickness 10 THREADED ENDS 10.1 Countersink or Chamfer 10.2 Threading Tolerances 10.3 Design of Threaded Ends 11 ALIGNMENT 12 GAGING 12.1 Preferred Gaging Method of Press-Joint Ends 12.2 Optional Gaging Method of Press-Connect Pressure Fittings
15	12.3 Standard Gaging Method of Threaded Ends 13 INSTALLATION INSTRUCTIONS 14 DESIGN QUALIFICATION 14.1 General 14.2 Hydrostatic Pressure Test at 20°C (68°F) 14.3 Unrestrained Hydrostatic Pressure Test at 93°C (200°F) 14.4 Static Torque Test 14.5 Bending Test
16	14.6 Vacuum Test 14.7 Cyclic Pressure Test 14.8 Vibration Test 14.9 Thermocycling Test 14.10 Dynamic Torque Test
17	Figures Figure 3.1-1 Method of Designating Laying Lengths of Fittings and Openings of Reducing Fittings
18	Figure 3.1-1 Method of Designating Laying Lengths of Fittings and Openings of Reducing Fittings (Cont’d)
19	Tables Table 9.1-1 Dimensions of Press-Connect Ends
21	Figure 8-1 Tube Stops Figure 11-1 Alignment Figure 14.2.1-1 Test Setup for Pressure Test
22	Figure 14.4.1-1 Test Setup for Static Torque Test Table 14.2.2-1 Maximum Slippage Table 14.4.1-1 Torque
23	Figure 14.5.1-1 Test Setup for Bending Test Table 14.5.1-1 Concentrated Load
24	Figure 14.8.1-1 Test Setup for Vibration Test
25	Figure 14.9.1-1 Test Setup for Thermocycling Test Figure 14.10.1-1 Test Setup for Dynamic Torque Test
26	MANDATORY APPENDIX I REFERENCES
27	NONMANDATORY APPENDIX A QUALITY SYSTEM PROGRAM