ASME B16.23:2016 pd free download.Cast Copper Alloy Solder Joint Drainage Fittings: DWV.
7 MARKING
(a) Each fitting shall be marked permanently and legibly with the manufacturer’s name or trademark and with “DWV” (to indicate Drain Waste Vent).
(b) Wnt fittings shall be permanently marked “VFNT ONLV” (See Tables 43, 44, 143, and 1-44) and show the manufacturer’s name or trademark in accordance with
MSS SP-25,
8 MATERIAl.
Castings shall he copper alloy produced to meet
(a) the requirements of ASTM 862 Alloy C83600; or
(6) the chemical and tensile requirements of ASTM 11584 Alloy 83804) or 84400, and in all other respects comply with the requirements of ASTM 1162.
9 METAL THICKNESS
Dimensional variations will occur in the casting process. Pattern equipment shall be designed to produce the metal 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
10 INSPECTION TOLERANCE
10.1 Convention
For determining conformance with this Standard, the convention for fixing significant digits where limits (maximum and minimum values) are specified shall be as defined in ASTM F.29. This requires that an observed or calculated value 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 measurement.
10.2 Linear Dimensions
DWV fittings covered by this Standard shall conform to the laying lengths specified in Tables 4 through 56 and Tables 1-4 through 1-56. An in.pection tolerance, as shown in Table 1 or Table, shall be allowed on centerto-shoulder, center-to-threaded end, and shoulder-to- threaded end dimensions on all fittings having internal solder (cup) ends; and on center-to-solder end, solder end-to-shoulder, and solder end-to-threaded dimenstuns on all fittings having external solder (fitting) ends. The largest opening in the fitting governs the tolerance to be applied to all openings.
The inspection tolerance for laying length dimensions A, B, and C (in Table 4 or Table 1-4) shall be double those shown above, except the minus tolerance applied to 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 (O.06 in./ ft).
ASME B16.23:2016 pd free download
