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Weld neck flanges have a neck that is welded directly to the pipe section. In comparison with other flange types, a weld neck flange can also be welded directly on a fitting. The inside diameter of the whole flange and outside diameter of the neck of the flange will match the in- and outside diameter of the pipe. Weld neck flanges are often used in applications with high pressure.
Weld neck flanges from our manufacturing include ANSI B16.5, ASME B16.47 Series “A” , and ASME B16.47 Series “B” weld neck flanges.
Material: Carbon, Alloy and Stainless Steel
Standards: ASTM A105, ASTM A182
Sizes: 1/2” to 24”, Customized up to 48”
Thickness: Schedule 10(S) to SCH 160
Pressure Ratings: Class 150 to 2500
Face Type: RF, RTJ