ASME B 16.22:2001 pdf free download

ASME B 16.22:2001 pdf free download WROUGHT COPPER AND COPPER ALLOY SOLDER JOINT PRESSURE FITTINGS
1 sCOPE1.1 General
This Standard establishes specifications for wroughtcopper and wrought copper alloy, solder-joint，seamlessfittings，designed for use with seamless copper tubeconforming to ASTM B 88 (water and general plumbingsystems),B 280 (air conditioning and refrigerationservice),and B 819 (medical gas systems), as well asfittings intended to be assembled with soldering materi-als conforming to ASTM B 32, brazing materialsconforming to AwS A5.8，or with tapered pipe threadconforming to ASME B1.20.1.
This Standard is allied with ASME B16.18, whichcovers cast copper alloy pressure fittings. It providesrequirements for fitting ends suitable for soldering. ThisStandard covers:
(a) pressure-temperature ratings;
(b) abbreviations for end connections;
(c) size and method of designating openings of fit-tings;
(d) marking;(e) material;
(f)dimensions and tolerances; and(g) tests.
1.2 Convention
For the purpose of determining conformance withthis Standard, the convention for fixing significant digitswhere limits (maximum or minimum values) are speci-fied shall be rounding off as defined in ASTM E 29.This requires that an observed or calculated value shallbe rounded off to the nearest unit in the last right-hand digit used for expressing the limit.
1.3 Units of Measure
The values stated in either SI (metric) or U.S.customary (in.-lb) units of measure shall be regardedseparately as standard. Within the main text,Sl unitsare given. For convenience,the customary units areshown in Mandatory Appendix I1. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. NOTE: Combining values from the two systems may result in nonconformance with the Standard.
1.4 References Standards and specifications adopted by reference in this Standard are shown in Mandatory Appendix II. It is not . considered practical to identify the specific edition of each standard and specification in the individ- ual references. Instead, the specific edition reference is identified in Appendix II 1.5 Quality Systems Requirements relating to the product manufacturer’s quality system program are described in Nonmandatory Appendix B.
2 PRESSURE- -TEMPERATURE RATINGS
2.1 Rating of Fittings and Joints The internal working pressure- -temperature rating for a solder-joint system is dependent upon not only ftting and tube strength, but also composition of the solder used for the joint and selection of valves and appurte- nances. Pressuretemperature ratings for solder joints to the dimensions of Table 3 (Table II3), made with typical commercial solders, are given in Table I1 (Table II4). The internal working-pressure rating of the system shall be the lowest of the values shown in Table 1 (Table I1) and Table I1 (Table II4), and those of the tube, valves, or appurtenances.
2.2 Bursting Strength Fittings manufactured to the Standard shall have an ambient temperature bursting strength of at least four times the 38°C (100°F) rated internal working pressure as shown in Table 1 (Table II1).