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Fillet Weld Design @ pipe circumference.
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Posted by: deelipshah

10/16/2008, 10:55:02

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Butt weld @ pipe is leaking. A wrapper plate (11" wide) @ pipe circumference is welded (Fillet Weld)on top of butt weld. How do I check this weld? See attached sketch. Pipe pressure = 150psi, Temp 250 Deg

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: Fillet Weld Design @ pipe circumference.
: Fillet Weld Design @ pipe circumference. -- deelipshah Post Reply Top of thread Forum
Posted by: devitg

10/19/2008, 18:03:20

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which FLUID????







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: Fillet Weld Design @ pipe circumference.
: Fillet Weld Design @ pipe circumference. -- deelipshah Post Reply Top of thread Forum
Posted by: Marky

10/16/2008, 11:03:14

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Simply pressurize the pipe and brush soapy water on the weld and it will bubble.

Or pressurized with N2 and use a leak detector.








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: : Fillet Weld Design @ pipe circumference.
: : Fillet Weld Design @ pipe circumference. -- Marky Post Reply Top of thread Forum
Posted by: deelipshah

10/16/2008, 11:16:33

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What will be design approach?







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Posted by: Marky

10/16/2008, 11:46:05

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I guess another question is How do you know that the Butt Weld is leaking?....if you are seeing leaks out of the fillet welds then you have a bigger problem.

I recommend purging your system with helium and getting a helium leak detector/sniffer. Google it for a company in your location.








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Posted by: Marky

10/16/2008, 14:46:24

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I just looked at the diameter of your tube....my approach may not be the best.

I have to keep looking at it.








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Posted by: Jop

10/16/2008, 15:15:26

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With the stated size of the pipe, the assumed thickness (based on diameter) and the implied location (field conditions)
I recommend the following:
VT (Visual Inspection) on each weld pass
PT (Liquid Penetrate) on each weld pass
UT (Ultrasonic Inspection) on the final weld pass







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