ASME B16.22:2013 pdf download

ASME B16.22:2013 pdf download.Wrought Copper and Copper Alloy Solder-Joint Pressure Fittings
1 SCOPE
This Standard establishes specifications for wrought copper and wrought copper alloy, solder-joint, seamless fittings, designed for use with seamless copper tube conforming to ASTM B88 (water and general plumbing systems), ASTM B280 (air conditioning and refrigeration service), and ASTM B819 (medical gas systems), as well as fittings intended to be assembled with soldering materials conforming to ASTM B32, brazing materials conforming to AWS A5.8, or with tapered pipe thread conforming to ASME B1.20.1. This Standard is allied with ASME B16.18, which cov- ers cast copper alloy pressure fittings. It provides requirements for fitting ends suitable for soldering. This Standard covers the following: (a) pressure–temperature ratings (b) abbreviations for end connections (c) size and method of designating openings of fittings (d) marking (e) material (f) dimensions and tolerances (g) tests
2 GENERAL
2.1 Relevant Units This Standard states values in both SI (metric) and U.S. Customary units. These systems of units are to be regarded separately as standard. Within the text, the U.S. Customary units are shown in parentheses or in separate tables that appear in Mandatory Appendix II. The values stated in each system are not exact equiva- lents; therefore, it is required that each system of units be used independently of the other. Combining values from the two systems constitutes nonconformance with the Standard. 2.2 References Standards and specifications adopted by reference in this Standard are shown in Mandatory Appendix III. It is not considered practical to identify the specific edition of each standard and specification in the individual ref- erences. Instead, the specific edition reference is identi- fied in Mandatory Appendix III.
2.3 Quality Systems Requirements relating to the product manufacturer’s quality system program are described in Nonmandatory Appendix B.
3 PRESSURE–TEMPERATURE RATINGS
3.1 Rating of Fittings and Joints The internal pressure–temperature rating for a solder- joint system is dependent upon not only fitting and tube strength, but also composition of the solder used for the joint and selection of valves and appurtenances. 3.1.1 Solder Joints. Pressure–temperature ratings for solder joints to the dimensions of Table 1 (Table II-1), made with typical commercial solders, are given in Table I-1 (Table II-4). The internal pressure–temperature rating of the sys- tem with solder joints shall be the lowest of the values shown in Table 2 (Table II-2) and Table I-1 (Table II-4) and those of the tube, valves, and appurtenances. 3.1.2 BrazeJoints. Pressure–temperature ratings for braze joints to the dimensions of Table 1 (Table II-1), made with typical commercial brazing materials, shall be considered equal to the values given in Table 2 (Table II-2). The internal pressure–temperature rating of the sys- tem with braze joints shall be the lowest of the values shown in Table 2 (Table II-2) and those of the tube, values, and appurtenances. 3.2 Bursting Strength Fittings manufactured to the Standard shall have an ambient temperature bursting strength of at least four times the 38°C (100°F) internal pressure rating as shown in Table 2 (Table II-2).
4 TERMINOLOGY
4.1 Size The size of the fittings shown in Table 1 (Table II-1) corresponds to standard water tube size as shown in ASTM B88. The size of the threaded ends corresponds to nominal pipe size as shown in ASME B1.20.1. Fittings are designated by the size of the openings in the sequence illustrated in Fig. 1.