AWWA C223:2002 pdf download.Fabricated Steel and Stainless Steel Tapping Sleeves
4.3..3.3 Materials. As fabrication progresses, all materials used in manufac- turing shall be examined for imperfections that have become apparent during fabrication.
4.3.3.4 Fabricated components. All components shall be dimensionally examined to verify conformity to prescribed shape, design dimensions, and material thickness requirements after forming. Dimensional verification is to be performed at necessary stages of fabrication to ensure that all dimensional requirements have been met.
4.3.3.5 Stainless steel weldments. Sensitization (carbide precipitation) of welded comj ponents shall be determined per ASTM A262, Practice “A." No sign of unwanted carbide precipitation in the microstructure will be allowed. This procedure is not necessary if low carbon grades of stainless steel base metal and filler metal are used in welding.
4.4.1 Standard shop coating. All fabricated tapping sleeves shall receive an interior and exterior shop coating to inhibit rust during transit unless otherwise specifed. This does not apply to fabricated tapping sleeves made of stainless steel.
4.4.2 Coating. Unless otherwise noted by the purchaser, all fabricated tapping sleeves shall receive interior and exterior coatings conforming to ANSI/ AWWA C210, ANSI/AWWA C213, ANSI/AWWA C218, ANSI/AWWA C222, ANSI/AWWA C550，or other coatings agreed to by the purchaser and the manufacturer. The thickness of the lining and coating may be limited by the working tolerances of the tapping sleeve components. The purchaser shall consult the manufacturer to determine these limitations.
4.4.3 Stainless steel tapping sleeves. All stainless steel surfaces and weld- ments shall be descaled and passivated. Descaling and passivation shall be per ASTM A967 or per ASTM A380 Sec. 5.2, Chemical Descaling, or Sec. 5.3, Mechanical Descaling.
5.1.2 Inspection by the purchaser. If the purchaser or their representative desires to inspect the fabricated tapping sleeve at the manufacturer's location, the purchaser shall so specify at the time of purchase request.
The purchaser shall have access to those parts of the manufacturer's facility that are necessary to ensure compliance with this standard. The manufacturer shall make available for the purchaser's use such gauges or measuring devices necessary for inspection. The manufacturer shall provide the purchaser with assistance, if necessary, in handling the items to be inspected.AWWA C223 pdf download.