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ASME B31.3-2016 (b) Procedure. Joints shall be made in accordance with A329.1.2 Specific Welding Requirements. Welding the qualified BPS. The general procedures in shall conform to the requirements of para. 328 and the ASTM F1290, Technique I — Coupling Procedure and following additional requirements: Technique II — Saddle Procedure provide a suitable (a) Modifications made in preparation for welding to basis for the development of such a procedure. See suit manufacturer's recommendations shall be specified Fig. A328.5.5. in the engineering design. A328.5.6 Adhesive Joints in RTR and RPM Piping (b) Welding shall be performed so as to maintain the continuity of the lining and its serviceability. (a) Procedure. Joints shall be made in accordance with (c) If a lining has been damaged,it shall be repaired the qualified BPS.Application of adhesive to the surfaces to be joined and assembly of these surfaces shall produce or replaced. a continuous bond between them and shall seal over all (d) Qualification to one WPS for a specific lining cuts to protect the reinforcement from the service fluid. material does not qualify a welder or welding operator See Fig. A328.5.6. for any other welding procedure involving different lin- (b) Branch Connections. A fabricated branch connec- ing materials. tion shall be made using a manufactured full reinforce- A329.2 Flaring of Nonmetallic Linings ment saddle having a socket or integral length of branch pipe suitable for a nozzle or coupling. The hole in the A329.2.1 General run pipe shall be made with a hole saw; the cut edges (a) Paragraph A329.2 applies only to the flaring of lin- of the hole shall be sealed with adhesive at the time the ings in pipe that has previously been lined with saddle is bonded to the run pipe. nonmetals. A328.5.7 Butt-and-Wrapped Joints in RTR and RPM (b) Flaring that conforms to para.A329.2 may be used Piping 5 in accordance with para. A318.3.2. (a) Procedure. Joints shall be made in accordance with (c) Flaring shall be performed only in accordance with the qualified BPS.Application of plies of reinforcement a written flaring procedure specification, and only by saturated with catalyzed resin to the surfaces to be joined qualified operators who have appropriate training or shall produce a continuous structure with them. Cuts experience in the use of the applicable flaring procedure ecification. shall be sealed to protect the reinforcement from the s p service fluid. See Fig. A328.5.7. (b) Branch Connections. For a fabricated branch con- A332 BENDING AND FORMING nection made by inserting the branch pipe into a hole in the run pipe,the hole shall be made with a hole saw. A332.1 General A328.6 Bonding Repair Paragraph 332.1 applies in its entirety. Defective material,joints,and other workmanship that A332.2 Bending fails to meet the requirements of this Code and of the Paragraph 332.2 applies, except para. 332.2.2. engineering design shall be repaired or replaced. See also para. 341.3.3. A332.3 Forming A328.7 Seal Bonds Paragraph 332.3 applies, except for heat treatment. If threaded joints are to be seal bonded in accordance with para.A311.2.2,the work shall be done by qualified A334 JOINING NONPLASTIC PIPING bonders and all exposed threads shall be covered by the A334.1 Borosilicate Glass Piping seal bond. Short unflanged pieces used to correct for differences between fabrication drawings and field dimensions may A329 FABRICATION OF PIPING LINED WITH be cut to length and finished in the field. NONMETALS A329.1 Welding of Metallic Piping A334.2 Repair of Defects Defective material,joints, and other workmanship in A329.1.1 General nonplastic piping that fail to meet the requirements of (a) Paragraph A329.1 applies only to welding subas- para.A334 or of the engineering design shall be repaired semblies of metallic piping that have previously been or replaced. lined with nonmetals. Completed repairs and replacements shall be exam- (b) Welding that conforms to para. A329.1 may be ined, subject to the same limitations on imperfections used in accordance with para. A318.3.1. as the original work.