ASME B1622 pdf free download

ASME B16.22 pdf free download Wrought Copper and Copper Alloy Solder-Joint Pressure Fittings
1 sCOPE
This Standard establishes specifications for wroughtcopper and wrought copper alloy, solder-joint, seamlessfittings,designed for use with seamless copper tubeconforming to ASTM B88 (water and general plumbingsystems)，B280 (air conditioning and refrigeration ser-vice), and B819(medical gas systems), as well as fittingsintended to be assembled with soldering materials con-forming to ASTM B32, brazing materials conforming toAwS A5.8,or with tapered pipe thread conforming toASME B1.20.1.
This Standard is allied with ASME B16.18, which cov-ers cast copper alloy pressure fittings.It providesrequirements for fitting ends suitable for soldering.ThisStandard covers the following:
a) pressure-temperature ratings
(b) abbreviations for end connections
(c) size and method of designating openings offittings
(d) marking(e) material
(f) dimensions and tolerances(g)tests
GENERAL
2.1 Units of Measure
The values stated in either sr(metric) orU.S.Customary (in.-lb) units of measure shall beregarded separately as standard. Within the main text,SI units are given. For convenience, the customary unitsare shown in Mandatory Appendix II. The values statedin each system are not exact equivalents; therefore, eachsystem shall be used independently of the other.
NOTE:Combining values from the two systems may result innonconformance with the Standard.
2.2 References
Standards and specifications adopted by reference inthis Standard are shown in Mandatory Appendix IIl. Itis not considered practical to identify the specific editionof each standard and specification in the individual ref-erences.Instead, the specific edition reference is identi-fied in Mandatory Appendix mI.
2.3 Quality Systems
Requirements relating to the product manufacturer’squality system program are described in NonmandatoryAppendix B.
3PRESSURE一TEMPERATURE RATINGS3.1 Rating of Fittings and Joints
The internal pressure-temperature rating for a solder-joint system is dependent upon not only fitting and tubestrength, but also composition of the solder used for thejoint and selection of valves and appurtenances.
3.1.1 Solder Joints.Pressure-temperature ratingsfor solder joints to the dimensions of Table 1 (Table II-1),made with typical commercial solders, are given inTable 1-1 (Table I1-4).
The internal pressure-temperature rating of the sys-tem with solder joints shall be the lowest of the valuesshown in Table 2 (Table I1-2) and Table l-1 (Table I1-4)and those of the tube, valves,and appurtenances.
3.1.2 Braze Joints. Pressure-temperature ratings forbraze joints to the dimensions of Table 1 (Table II-1),made with typical commercial brazing materials, shallbe considered equal to the values given in Table 2(Table Il-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 anambient temperature bursting strength of at least fourtimes the 38c (100°F) internal pressure rating as shownin Table 2 (Table II-2).
4TERMINOLOGY4.1 Size
The size of the fittings shown in Table 1 (Table II-1)corresponds to standard water tube size as shown inASTM B88. The size of the threaded ends correspondsto nominal pipe size as shown in ASME B1.20.1.
Fittings are designated by the size of the openings inthe sequence illustrated in Fig.1.
5 MARKING Each fitting shall be permanently marked with the manufacturer’s name or trademark in accordance with MSS SP-25. Marking on fittings less than size 1 ⁄ 2 or on any fitting where it damages soldering surfaces is not required.
6 MATERIAL (a) Fittings shall be made from copper UNS Nos. C10200, C12000, or C12200 or copper alloy UNS No. C23000, for which allowable stresses are found in ASME B31.1, ASME B31.9, or ASME Boiler and Pressure Vessel Code, Section II — Materials. (b) Other coppers and copper alloys are permitted, provided they meet the chemical requirements of 84% minimum copper and 16% maximum zinc and provided the fittings produced from the copper alloy meet all the mechanical and corrosion-resistantproperties for the end purposes of the fittings. The composition of the copper alloy shall contain nothing that will inhibit join- ing to the tube or to other fittings.
7 LAYING LENGTHS Due to widely varying manufacturing processes, meaningful laying lengthrequirements offittings cannot be established. Consult the manufacturer for these dimensions. 8 TUBE STOPS Except for repair couplings, fittings shall be manufac- tured witha tube stop. Repaircouplings shall notrequire