Welding groove geometry is one of the factors determining the structure’s weld-induced deformation. There are three types of welding groove geometry available for a full-welded ball valve. Multipass butt-welded plate experiments and finite element analysis were applied to determine which is the best of the valve. The experiments and analysis both show that the U-q groove is the best choice for the full-welded ball valve to get the smallest weld-induced deformation.
Issue Section:Technical Briefs
Keywords:butt welding, deformation, finite element analysis, plates (structures), valves, welds
Topics:Deformation, Finite element analysis, Geometry, Valves, Welding
API 6D Specification for Pipeline Valves (Gate, Plug, Ball, and Check Valves).
ANSI/ASME B 16.34 Valves, Flanged, Threaded End, Welding End.
ASTM A350 Standard specification for carbon steel forgings for piping components.
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by American Society of Mechanical Engineers