ASME B16.29-2007 pdf download.Wrought Copper and Wrought Copper Alloy Solder-Joint Drainage Fittings — DWV.
1 SCOPE 1.1 General This Standard for wrought copper and wrought cop- per alloy solder-joint drainage fittings, designed for use with copper drainage tube conforming to ASTM B 306, covers the following: (a) description (b) pitch (slope) (c) abbreviations for end connections (d) sizes and method of designating openings for reducing fittings (e) marking (f) material (g) dimensions and tolerances 1.2 Convention For the purpose of determining conformance with this Standard, the convention for fixing significant digits where limits (maximumand minimumvalues) are speci- fied shall be rounding off as defined in ASTM E 29. This requires that an observed or calculated value shall be rounded off to the nearest unit in the last right-hand digit used for expressing the limit. Decimal values and tolerances do not imply a particular method of mea- surement. 1.3 Relevant Units This Standard states values in both 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. (Tables showing dimensions in equiva- lent U.S. Customary units are found in Mandatory Appendix I.) The values stated in each system are not exact equivalents; therefore, it is required that each sys- temofunits beusedindependentlyofthe other. Combin- ing values from the two systems constitutes nonconformance with the standard. 1.4 References Codes, standards, and specifications, containing pro- visions to the extent referenced herein, constitute requirements of this Standard. These reference docu- ments are listed in Mandatory Appendix II.
1.5 Quality Systems Guidelines relating to the product manufacturer’s quality system programs are described in Nonmanda- tory Appendix A. 2 DESCRIPTION These fittings are designed for drainage and vent sys- tems only, using the solder-joint method of connection. The fitting cups (C) are provided with stops so that the ends of the tube, when assembled, meet the stops. Sketches and designs of fittings are illustrative only. The dimensions specified herein shall govern in all cases. 3 PITCH (SLOPE) All nominal 90-deg fittings shall be pitched to result in a slope of 0.20 mm/m (0.25 in./ft) (2%) of horizontal tube length with reference to a horizontal plane. 4 ABBREVIATIONS The symbols shown below are used to designate the type of fitting end.
5.1.1 Tube. The size designations for the fitting end configurations defined in Table 1 (Table I-1) correspond to drainage tube sizes defined in ASTM B 306. 5.1.2 Pipe. The size designation of threaded fitting end configurations defined in Table 2 (Table I-2) corres- ponds to thread sizes defined in ASME B1.20.1. 5.2 Identification Fittings shall be identified by the nominal size of the openings in the sequence illustrated in Fig. 1. 6 MARKING Each fitting shall be marked permanently and legibly with the manufacturer’s name or trademark and with DWV (to indicate drain-waste-vent). 7 MATERIAL Fittings shall be made of wrought copper or wrought copper alloy material having not less than 84% ofcopper content. 8 LAYING LENGTHS Due to widely varying manufacturing processes, lay- ing length dimensions of fittings are not standardized. Consult the manufacturer for these dimensions. Sug- gested dimensions, including laying lengths, for various fitting configurations are shown in Tables 3 through 13 (Tables I-3 through I-13). 9 OVALITY Maximum ovality shall not exceed 1% of the maxi- mum diameter shown in Table 1. The average of the maximum and minimum diameters must be within the dimensions shown in the table. 10 THREADED ENDS 10.1 General Fitting threads shall be right hand, conforming to ASME B1.20.1-1983 (R2001). They shall be taper threads (NPT), except for slip joint ends, which shall have straight pipe threads (NPSM).