dear ِِAll
As you know some valve manufacturers use body seat which is welded i.e. stainless steel overlay welds over ductile iron body usin MIG welding process. the NDT method used to inspect the weld is PT. My question is this enough and accepted or you need additional NDT test such as UT.
please let me know.
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Meilleures Salutations.
Fathi Gabsi.
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