ASME B16.2:2001 pdf download WROUGHT COPPER AND COPPER ALLOY SOLDER JOINT PRESSURE FITTINGS
1 SCOPE
1.1 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 A58, 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 29This 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, SI unitsare given. For convenience, the customary units areshown in Mandatory Appendix Il.The values stated in each system are not exact equivalents; thereforeeach system shall be used independently of the other.
NOTE: Combining values from the two systems may result innonconformance with the Standard.
14 References
Standards and specifications adopted by reference inthis Standard are shown in Mandatory Appendix IllIt is not considered practical to identify the specificedition of each standard and specification in the individual references. Instead, the specific edition referenceis identified in Appendix Ill.
1.5 Quality Systems
Requirements relating to the product manufacturer’squality system program are described in NonmandatoryAppendix B.
2 PRESSURE-TEMPERATURE RATINGS
2.1 Rating of Fittings and Joints
The internal working pressure-temperature rating fora solder-joint system is dependent upon not only fittingand tube strength, but also composition of the solderused for the joint and selection of valves and appurtenances
Pressure-temperature ratings for solder joints to thedimensions of Table 3 (Table I3)made with typicalcommercial solders, are given in Table I1 (Table I4)The internal working-pressure rating of the systemshall be the lowest of the values shown in Table 1(Table IIl) and Table Il (Table I4), and those of thetube，valves，or appurtenances.
2.2 Bursting Strength
Fittings manufactured to the Standard shall have anambient temperature bursting strength of at least fourtimes the 38°C (100F) rated internal working pressureas shown in Table 1 (Table IIl).
ASME B16.2:2001 pdf download
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