ASME A112.3.1 pdf download

ASME A112.3.1 pdf download Stainless Steel Drainage Systems for Sanitary DWV, Storm, and Vacuum Applications, Above- and Below-Ground
2 REQUIREMENTS
2.1 Dimensions
All dimensions for stainless steel pipe, fittings, drains, and adapters are found in Tables 1 through 47. All threaded inch values shall comply to ASME B1.20.1. Threaded dimensions shall be identified as either “inch dimensions” according to ASME B1.20.1 or “standard metric thread” depending on which thread is used for the particular threaded connection.
2.2 Tolerances, Dimensions, Other Patterns, and Interchangeability Other patterns of pipe and fittings not specifically found within this Standard shall meet the dimensional requirements of Table 1.
2.3 Alloys
The pipe shall be produced by the welding of sheet steel produced in accordance with the grading of alloy as described by the Iron and Steel Society UNS S30400, Type 304 and UNS S31603, Type 316L. The chemical composition of which is in accordance with the applica- ble standard. Type 304 shall be used for above-ground applications.
Only Type 316L shall be allowed above ground, used for below-ground applications, or where the discharge effluent requires Type 316L. See the manu- facturers’ recommendations for application. When requested by the purchaser, the fabricator of the pipe and fittings shall furnish certifications from the steel manufacturer that the pipe and fittings were manufactured from Type 304 and Type 316L stainless steel alloy as required by this Standard.
2.4 Welded Fabrication After fabrication, welded components shall be treated to remove discolorationandcontaminates bybeingpickled and passivated or by other means such as grinding and polishing so that the discoloration and contaminations from welding are removed. Burrs, edges, and irregularities in the welding seam area shall not exceed 0.3 mm (0.012 in.).
Pipes and fittings shall be tested in accordance with performance tests found in para. 3.4.
2.5 Straightness of Pipe Pipes shallbe straight. Measuredalongthe pipebarrel, the deflection over the length ofthe 1-m (39.4-in.) section shall not deflect more than 1.5 mm (0.06 in.) in the middle.
2.6 Ends of Pipe and Fittings (Spigot) The pipe and fitting ends shall be perpendicular to the pipe wall. Pipe ends shall be smooth and free of irregularities so as not to interfere with the normal join- ing of the product.
2.7 Cutting and Deburring Pipe shall be field-cut with a combination factory tool that results in a cut that is square, clean, and free of burrs. An approved manufacturer’s cutting fluid shall be used during the cutting and beveling process. The manufacturer’s cutting fluid shall be wiped off so that it shall not come in contact with the O-ring (internal sealing ring). The installer shall follow the manufactur- er’s installation recommendations.
2.8 Sockets Pipe shall be plain-end, single-socket, or double- socket. Pipe fittings shall have one socket for each inlet or branch connection designed to join directly to the spigotend ofa pipe orpipe fittingmade to this Standard. An accessory fitting such as a floor flanges, trench drains, cleanouts, and plugs shall have only one spigot for connection to a socket or spigot.