ASME B16.23:2011 pdf free download

ASME B16.23:2011 pdf free download.Cast Copper Alloy Solder Joint Drainage Fittings: DW.
ASME B16.23 establishes specifications for cast copper alloy solder joint drainage Fittings, designed for use in drain, waste, and vent (DWV) systems These Fittings are designed for use with seamless copper tube conformmg to ASTM B3(i, Copper Drainage Tube (DWV), as well as fittings intended to be assembled with soldering matei’i,ils conforming to ASTM B32. or tapered pipe thread conforming to ANSI/ASME B1.20.1.
This Standard is allied with ASME B16.29, Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings — DWV
It provides requirements for fitting ends suitable for soldering. This Standard covers
(a) description
(b) pitch (slope)
(c) abbreviations for end connections
(d) sizes and methods for designing openings for reducing fittings
(e) marking
(f) material
(g) dimensions and tok’ranes
2 GENERAL
2.1 Relevant Units
This Standard slates values in both SI (Metric) and US. Customary units. These systems of units are to be regarded separately as standard. Within the test, the US. Customary units are shown in parentheses or in separate tables that appear in Mandatory Appendix I. The values stated in each system are not exact equivalents; therefore, it is required that each system of uniLs be used independently of the other. Combining values from the two systems constitutes nonconformancv with the Standard.
2.2 References
Standards and specilications adopted by reference in this Standard an’ shown in Mandatory Appendix II, which is part of this Standard It is not considered practical to identify the speific edition of each standard and specification in the individual references. Instead, the specific edition reference is identified in Mandatory Appendix II.
10.3 Ovality
Maximum ovality shall not exceed 1% of the maximum diameters shown in Table 2 or Table 1-2. The average of the maximum and minimum diameters shall be within the dimensions shown in the table.
10.4 Alignment
The maximum allowable variations in the regular alignment of all openings shall be 5 mm per I m (0.06 in. per I ft).
10.5 Gaging of Solder Joint Ends
(a) Standard Caging Method of Solder Joint End.s. The standard method of gaging the diameter tolerances for male and female ends shall be by the use of plain plug and ring gages designed to hold the product within the limits established in Table 2 or Table 1-2.
(b) Optional Caging Method of Solder Joint Ends. For gaging the diameter tolerance of male and female ends, the manufacturer may use direct reading instruments instead of ring and plug gages as specified in para. (a). When gaging the diameters of male and Female ends, using direct reading instruments, refer to para. 10.3.
11 THREADED ENDS
11.1 General
Threaded ends shall conform to the dimensional requirements contained within Table 3 or Table 1-3. Fitting threads shall be right-hand, conforming to ASME 1.20.1. They shall be taper threads (NPT) except for slip joint ends, which shall have straight pipe threads
(NPSM).
11.2 Thread Dimensions
All internal threads shall be countersunk a distance not less than one-half the pitch of the thread at an angle of approximately 45 deg with the axis of the thread.
All external threads shall be chamfered at an angle of 30 deg to 45 deg from the axis. This facilitates joint assembly and thread protection. Countersinking and chamfering shall be concentric to the threads. The length of threads specified in all tables shall be measured to include the countersink or chamfer.
11.3 Threading Tolerances
Tapered pipe threads (NPT) shall be checked by use of working plug or ring gages either standard or limit types. Gages shall be threaded hand tight. The reference point for gaging internal taper threads, the plug gage.