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  1. DeepuDivakaran

    PQR for LTCS Flange A350 Gr LF2

    Dear Experts, Your valuable comments are sought for the below mentioned issue. One of our piping project which has to completed during plant S/D duration, there is shortage of 2 nos of 12" RTJ A105 WN Flanges. It is not for low temperature service. The connecting pipe is A106 Gr.B. We have 2...
  2. DeepuDivakaran

    Pressure Testing Hot tapping Fittings.

    Thanks
  3. DeepuDivakaran

    Pressure testing of hot tapping fittings-High Temperature Steam Line

    Experts your recommendation is requested in selecting the test medium for one of our hot tapping job. As per the procedure after the welding of hot tap fittings (Split Tee) and installation of hot tap valve , we need to test the weld integrity of hot tap fitting by hydro testing the connection...
  4. DeepuDivakaran

    Pressure Testing Hot tapping Fittings.

    Experts your recommendation is requested in selecting the test medium for one of our hot tapping job. As per the procedure after the welding of hot tap fittings (Split Tee) and installation of hot tap valve , we need to test the weld integrity of hot tap fitting by hydro testing the connection...
  5. DeepuDivakaran

    Uphill and Downhill progression in Pipe line welding

    Thanks for the replies.
  6. DeepuDivakaran

    Uphill and Downhill progression in Pipe line welding

    Dear Welding, Pipe line Experts, Please confirm whether 1104 or B31. 8 mandates downhill welding. We have a job in one S/ D to replace around 70 mtrs of corroded transfer pip lines in different locations. Material is API 5L X 65. As it is only 10 nos of 16" joints 9. 35 wall thickness we are...
  7. DeepuDivakaran

    wqt

    Welding Experts, Could you please clarify my doubt regarding WQT. Our production requirement is to weld split tee 24" 15.875 thickness longitudinal joint in horizontal position, and with backing strip. We require 4 welders . my test piece is 18 " 19.05 thickness. whether i can qualify two...
  8. DeepuDivakaran

    Hot Tapping Dissimilar Materials.

    Thanks, We have successfully completed the mentioned welding. But unfortunately I am going through a serious problem with other hot tap welding with split tee branch connection. Run pipe is 24" Sch 10 and branch is 10". Material A312 Gr 316L.Process is SMAW. Run pipe thickness is 6.15 mm...
  9. DeepuDivakaran

    Hot Tapping Dissimilar Materials.

    Dear Experts, We are planning for a hot tapping job with weldolet branch connection.Run pipe is API 5L and branch is A312 Gr TP 321. Electrode will be E309L. Line is Flare line. Size : 36" x 2". normal operating pressure is negligible,ie. 0.02 bar. Our plan is to purge the line with a min...
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