ASME B16.23-2016 pdf download

ASME B16.23-2016 pdf download.Cast Copper Alloy Solder Joint Drainage Fittings: DWV.
2 GENERAL
2.1 Relevant Units
ThLs Standard states values in both SI (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 that appear in Mandatory Appendix 1. The values stated In each system are not exact equivalents; therefore. it is required that each system of units be used independently of the other. Combining values from the two systems constitutes nonconformance with the Standard.
2.2 References
Standards and specifkations adopted by reference in this Standard are shown in Mandatory Appendix II. which is part of this Standard. It is not considered practi. cal to identify the specific edition of each standard and specification in th individual references. Instead, the specific edition reference is identified in Mandatory Appendix IL
(b) Fittings are designated by the size of the openingsin the sequence illustrated in Fig.2.
7MARKING
a) Each fitting shall be marked permanently and legi-bly with the manufacturer’s name or trademark andwith“Dwv” (to indicate Drain Waste Vent).
(b) Vent fittings shall be permanently marked “VENT
ONLY”(See Tables 43,44,1-43,and I-44y and show themanufacturer’s name or trademark in accordance with MSS SP-25.
MATERIAL
Castings shall be copper alloy produced to meet(a)the requirements of ASTM B62 Alloy C83600; or
(b the chemical and tensile requirements of
ASTM B584 Alloy 83800 or 84400, and in all otherrespects comply with the requirements of ASTM B62.
9METAL THICKNESS
Dimensional variations will occur in the casting pro-
cess. Pattern equipment shall be designed to produce themetal thickness given for fittings in Table 2 or Table 1-2.
Any final fitting metal wall thickness less than 90%of the thickness given in the table is unacceptable.
10INSPECTION TOLERANCE
10.1 Convention
For determining conformance with this Standard, theconvention for fixing significant digits where limits
(maximum and minimum values) are specified shall beas defined in ASTM E29.This requires that an observed or calculated value be rounded off to the nearest unitin the last right-hand digit used for expressing the limit.Decimal values and tolerances do not imply a particularmethod of measurement.
couplings; dimension A shall not result in a dimensionless than 2.3 mm (0.09 in-).
10.3 Ovality
Maximum ovality shall not exceed 1%of the maxi-mum diameters shown in Table 2 or Table 1-2.The aver-age of the maximum and minimum diameters shall bewithin the dimensions shown in the table.
10.4 Alignment
The maximum allowable variations in the regularalignment of all openings shall be 5 mm/ m(0.06 in./ ft).10.5 Gaging of Solder Joint Ends
(a)Stanrdard Gaging Method of Solder Joint Ends. Thestandard method of gaging the diameter tolerances formale and female ends shall be by the use of plain plugand ring gages designed to hold the product within thelimits established in Table 2 or Table I-2.
(b)Oprional Gaging Mefhod of Solder fjoinf Ends. Forgaging the diameter tolerance of male and female ends,the manufacturer may use direct reading instrumentsinstead of ring and plug gages as specified in (a). Whengaging the diameters of male and female ends,usingdirect reading instruments,refer to para. 10.3.
11THREADED ENDS
11.1 General
Threaded ends shall conform to the dimensionalrequirements contained within Table 3 or Table I-3.Fitting threads shall be right-hand, conforming toASME B1.20.1.They shall be taper threads (NPTy exceptfor slip joint ends, which shall have straight pipe threads(NPSiM).
11.2 Thread Dimensions
All internal threads shall be countersunk a distancenot less than one-half the pitch of the thread at an angleof approximately 45 deg with the axis of the thread.