Two point welding of PTW series large diameter straight pipe flange
Model specification
Ptw-800 / 1000 / 1200, applicable pipe diameter specifications are respectively Φ 89-830 / Φ 114-1020 / Φ 168-1220mm,
Customized Φ □ □ - □ □ □ mm
Equipment use
The two-point welding of the large diameter straight pipe flange is mainly used for the plug fillet welding of the straight pipe flat welding flange and the butt welding of the straight pipe high neck flange in coal mine, anti-corrosion, shipbuilding, UHV power tower and other industries.
Welding process: □ GMAW □ other
Configuration mode: □ single head two-point welding □ double head two-point welding
Welding quality:
The welding line is even and beautiful without appearance defects;
The qualification rate of grade I or II welds in radiographic or ultrasonic testing is more than 98%;
 meet the requirements of pressure test or impact, tensile, bending and other mechanical properties inspection.
The plug-in fillet welding shall meet the requirements of fillet height dimension and pressure test;
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