WELDING OF PIPELINES AND RELATED FACILITIES
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B.2.4 Welding of Test Joints B.2.4.1 General Pipeline operating conditions that affect the ability of the flowing contents to remove heat from the pipe wall should be simulated while test joints are being made. NOTE Filling the test section with water and allowing water to flow through the test section while the test joint is being made has been shown to produce thermal conditions equivalent to or more severe than typical in-service welding applications (see Figure B.2). Procedures qualified under these conditions are therefore suitable for any typical in-service application. Other media (e.g. motor oil) may be used to simulate less severe thermal conditions.
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Fluid out
End plate
Support post
45º ±5º
Fluid in
NOTE This test position qualifies the procedure for all positions. Tests may be performed in other positions that qualify the procedure for that position only.
Figure B.2—Suggested Procedure and Welder Qualification Test Assembly B.2.4.2 Branch and Sleeve Welds The requirements in 5.7 for branch and sleeve welds are appropriate for in-service welding.
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