Welding Neck Flange Dimensions. NPS 12 through NPS 24 MetricInch Standard. Other types of flanges can be have different bolt hole diameters and thicknesses so that the bolts even can have different dimensions.
Weld Neck Flange Dimensions Below we list some sizes of weld neck flanges Class 150 under ASME B165 12 to 24. - Weights are based on manufacturers data and are approximate. B165 Welding Neck Flange 900lb.
Dimensions and weights of Class 300 raised face welding neck flanges RF WN to ASME B165.
API Spec 6A Specified 6 BX Weld Neck Flanges have material and dimensions that conform to the requirements for full bore Integral. Our weld neck flanges are drilled with the wall thickness of flange having the same dimensions of pipe. The 12 NPS weldneck flange has inside diameter of 062 and outside diameter of 350. Raised Face Weld Neck Flanges to ANSI B165 300lb pressure rating Pipe Size Flange Dims mm Hub mm Raised face mm Drilling inches A B D E L F G Qty H K 12 953 142 523 213 381 351 4 58 258 34 1173 157 572 267 478 429 4 58 314 1 1240 175 620 335 538 508 4 58 312 114 1334 191 650 422 635 635 4 58 378.