Dear
find the welder qualification Requirements as follows
Welding Procedure and Welder Qualification coupon SET-UP:
Welder Qualification:
A welder qualified on pipe having an OD of greater than or equal to 12.750 in. (323.9 mm) should be qualified for all pipe diameters. A welder who has an existing Unlimited Thickness qualification to ASME-IX and an in-service qualification as per Fig. above to the 2 pipe thickness as stated in the table below, should be qualified as an in-service branch or sleeve welder for Horizontal Pipe positions, all diameters, and all wall thicknesses.
Hot Tap Welder Performance Coupon Requirement for Qualifying 2 Welders | ||
ITEM DESCRIPTION | CARRIER PIPE | SPLIT SLEEVE |
T upon 19.1mm | 12" SCH 40 (10.3mm) X 600mm LONG | 14" SCH – XS (12.07mm) X 200mm LONG |
T > 19.1mm | 14" SCH – 100 (23.83mm) X 200mm LONG | |
Note:If the welders Qualified on thickness more than 19.1mm, will qualified to weld unlimited thickness can be Utilized for future projects
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