These are produced to suit nominal borenps pipe sizes. Flange drillings in en10921 are generally the same as bs4504 and din 2501 but en10921 covers a wider range. Flat face flanges may be provided at full thickness, c, or with raised face removed the latter is nonstandard. No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Classes 25, 125, and 250 has been added to your cart. Asme procedures and policies, which precludes the issuance of interpretations by individuals. Each specification further delineates flanges into pressure classes. To order a reducing flange, state the smaller size first, then. The mm values are rounded off to the nearest 0 or 5 in the asme standard. Included are 1 flanges with rating class designations 150, 300, 400, 600, 900, and 1500 in sizes nps 12 through nps 24 and flanges with rating class. Thus, a comparison is done only for this sealing surfaces. Class 150 to class 900 the following section is in order by pressure class due to the overlapping dimensions of some standards.
The american society of mechanical engineers three park avenue, new york, ny 100165990. Sizes nps 12 through 312 are same as class 600 flanges. Threading of pipe for american national standard threaded flanges. Provided that the required thickness shall be free from its influence. Class 400 series a dimensions at nps 38 and larger also apply to class 400 series b flanges. Pdf asme ansi b16 1 cast iron pipe flanges and flanged. Coastal flange stocks import and domestic ansi b16. This standard covers pressuretemperature ratings, materials, dimensions, tolerances, marking, testing, and methods of designating openings for pipe flange and flanged fittings.
B industry standard and awwa flanges weld neck, slipon, blind. Class 150 flanges nps 12 to 24 welding neck traceparts. The american society of mechanical engineers two park avenue, new york, ny 100165990. J01715 gray iron pipe flanges and flanged fittings. Available for solidworks, inventor, creo, catia, solid edge, autocad, revit and many more cad software but also as step, stl, iges, stl, dwg, dxf and more neutral cad formats. For 10 years prior to the change, the standard included both and was listed as ansi asme b16. If you need help deciding which flange best suits your application feel free to contact us. If you need help deciding which flange best suits your application, feel free to.
Flange dimensions en10921 introduction british metric standard bs4504 is now obsolete and replaced by en10921 edition 092008 for steel flanges which also incorporates din standard. Flange dimensions are determined by the pipe size and the pressure class required for the application. Asa and asme agreed to include the topic in the scope of the b16 committee, and subcommittee 5 now subcommittee e was established for the purpose. It was put aside at the end of world war i and interest did not revive until 1926. Pioneer work on standardization of endtoend dimensions of valves began in 1917 under the direction of j. End flange facings and their relationship to flange thickness and. Asme serves this wideranging technical community through quality programs in continuing education, training and professional development. Dimensions of class 600 blind and spacer t weld 125 to 250 rms o weld o b t asme b16.
The pressure rating will also determine the dimensions of the flange full. Asme issues written replies to inquiries concerning interpretations of technical aspects of this. Asme, the american society of mechanical engineers, will be the essential resource for mechanical engineers and other technical professionals throughout the world for solutions that benefit humankind. Pipe flanges and flanged fittings a105 weld neck flange. For slipons over 24 you must refer to either industry standard which are not automatically covered by asme or boiler code flanges. Mss sp44 is the only source for the nps 22 flange dimensions above. Simply turn to the pressure class required and find the dimensional standard of your choice.
Flange a saldare di testa flange cieche welding neck. Download class 150 flanges nps 12 to 24 welding neck. To order a reducing flange, state the smaller size first, then the outside diameter of the larger size. Pdf asme b16 5 20 pipe flanges and flanged fittings nps 1. C this dimension is commonly associated with true lap joints. Insert flanges to your sketchup model with the engineering toolbox sketchup extension. Mss sp44 also covers nps 12 to nps 24 flanges which are equivalent to asme b16. Asmes diverse members range from college students and earlycareer engineers to project managers, corporate executives, researchers, and academic leaders. Precision steel pipes din en 103051 to 5 dimensions and masses 28 30 pipes with threaded ends din en 10255 dimensions and masses 31 steel pipes acc. Due to the change of the designation of the sealing surface.
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