Abstract： ASME B16.29:2001 pdf download.WROUGHT COPPER ANDWROUGHT COPPER ALLOY SOLDER JOINT DRAINAGE FITTINGS -DWV. 6 MARKING Each fitting shall be marked permanently and legibly with the manufacturer’s name or iradenurk and with DWV (to indicate d...

ASME B16.29:2001 pdf download.WROUGHT COPPER ANDWROUGHT COPPER ALLOY SOLDER JOINT DRAINAGE FITTINGS -DWV.

6 MARKING

Each fitting shall be marked permanently and legibly with the manufacturer’s name or iradenurk and with DWV (to indicate drain-waste-vent).

7 MATERIAL

Fitüngs shall be made of wrought copper or wrought copper alloy material basing not less than an 84% copper content.

8 LAYING LENGThS

Duc to widely .arying manufacturing proccsses. laying length dimensions of fittings are not standardi,ed. Consult the manufacturer for these dimensions.

9 OVALITY

Maximum ovality shall not exceed 1% of the inaximum diamctcr shown in Table 2. 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 B 1.20.1 - l9X3(R200I t. They shall be taper threads (NP!’). except for

slip joint ends, which shall have straight pipe threads (NPSM).

10.2 Chamfer

All internal threads shall he chamfered a distance not less than one-half the pitch of the thread at an angle ol’ approximately 45 deg with the axis of the thread, and all external threads shall he chamfered at an angle of 30 deg to 45 deg from the axis, for the purposes of easier entrance in making a joint and protection of the thread. Chamfering shall be concentric with the thrcads The

length of threads specified in all tables shall be measured to include the chamfer.

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