![]() See Para th 1104-I Why is a clamp required for a weld procedure qualification, when the pipe nipples for the WPS will have been cut from the same A line-up clamp is not required for the weld procedure qualification. If the procedure specification does not require a line-up specification (as discussed in ) for butt welds must reflect this? clamp, then none needs to be used when making the production weld. 4.3 requires that the use of line-up clamps must be in accordance with the procedure specification. See Para clamp? th 1104-I As paragraph 4.3 is concerning butt welds, is this indicating that a clamp must be used for butt welds and that the weld procedure Para. An attached sketch illustrates the condition th 1104-I If the Company has not required the use of a line-up clamp in its project specific specification, does API 1104 require the use of a No. cluster of 5 to 7 pores cannot fit into an inscribed circle on the fine chart, the client is rejecting it even though there is no other porosity within the entire radiograph. When a If the size of the porosity is the size shown in the "medium" charts of Figures 18 and 19, then that is the chart which must be used as the acceptability standard. If Para c applies, then figures 18 and 19 must be use of porosity is being interpreted differently by different inspectors even if the indication on the radiograph has been defined as cluster porosity th 1104-I With similar size porosity all falling into the medium category, the density which is in the assorted chart cannot be defined. ![]() Should these groupings be per API 1104 and/or Company requirements? th 1104-I Clarification of the requirements of paragraph c with respect to cluster porosity is required since the collective aggregate sizif the cluster porosity cannot be proven to be in the finish pass, the criteria of Para applies. thickness to the Contractor as it states this will be stated in the WPS. 9.5 apply th 1104-I Weld Procedure Qualification - Automatic Welding Under Section 9, this appears to be leaving the groupings of diameters and wall Weld Procedure Qualification for Automatic Welding - The groupings are left to the writer of the procedure specification. 9.6 provides that both the equipment and the operator are qualified at the same time, the Essential Variables specified in Para. Is this correct? Welder Qualification Tests for Automatic Welding - Since Para. Is it correct in saying that qualifying a procedure on 2" diameter would qualify, say, a 40" diameter butt weld provided all other essential variables were met th 1104-I Welder Qualification Tests for Automatic Welding Section 9.7 does not specify any essential variables for Welder Qualification Tests. Is the first group specified in Table 2 which is 12.7 mm? Or is it the group specified under Welder Qualification Tests which is 19 mm? th 1104-I The essential variable list in Section 2.4 for Weld Procedure Qualification does not cover diameter groupings although Welder Yes. See Para However, this section does not specify which group. The groups are not specified in API-1104, they are to be selected by the user. 1 API Standard 1104 Welding of Pipeline and Related Facilities+A3 Standard Edition Section Inquiry # Question Reply th 1104-I The section on essential variables for Weld Procedure Qualifications, Section, states a change from one group to another.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |