These specification include only welding neck and blind flanges. Simply turn to the pressure class required and find the dimensional standard of your choice. The american society of mechanical engineers three park avenue, new york, ny 100165990. This standard covers pressure ratings, temperature ratings, materials, dimensions, tolerances, marking and testing for flanges of this size with rating class designations 75, 150, 300, 400, 600, and 900. Artificial asme b16 47 series b ai has recently become a field in which research is proceeding at a feverish pace. Class 150 to class 900 the following section is in order by pressure class due to the overlapping dimensions of some standards. Secretary b16, the american society of mechanical engineers, three park avenue, new york, ny 100165990. This standard covers pressuretemperature ratings, materials, dimensions, tolerances, marking, and. From a commercial point of view, the serie b type may be selected for piping with a non critical application.
Dimensions of class 150 blind and spacer t weld 125 to 250 rms o weld o b t asme b16. This site is like a library, you could find million book here by. This 2006 edition is presented in metric units, as primary units, with u. Pipe flanges and flanged fittings nps 12 through nps 24 metricinch standard. January 30, 2012 the next edition of this standard is scheduled for publication in 2016. Nps 26 through nps 60 metricinch standard standard by asme international, 05052017. Cast iron fittings for sovent drainage systems asme b16. As an alternative, inquiries may be submitted via email to. Mss sp44 also covers nps 12 to nps 24 flanges which are equivalent to asme b16. Information about weldneck and blind flanges as per asme b16. Series b flange was also formerly known as api 605 flange. October 20, 2011 the next edition of this standard is scheduled for publication in 2016.
Large diameter steel flanges nps 26 through nps 60addenda a 10261998 asme b16. All books are in clear copy here, and all files are secure so dont worry about it. Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions. National standard on october 3, 1996 with the new designation asme b16. You may note that these specs include only weld necks and blinds. This information is also printed along all delivered ansi b16. B industry standard and awwa flanges weld neck, slipon, blind. Association asa, organized sectional committee b16 to unify and further develop national standards for pipe flanges and fittings and, later, for valves, gaskets, and valve actuators.
Class 600 series a dimensions at nps 38 and larger also apply to class 600 series b. Mss sp44 is the only source for the nps 22 flange dimensions above. Asme has incorporated the msssp44 specification into b16. Generally speaking, newer equipment almost always uses series a, but if you are connecting to a nozzle on older or existing equipment, get someone to. Cosponsors of the b16 committee were the american society of mechanical engineers asme. To order a reducing flange, state the smaller size first, then the outside diameter of the larger size. 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. Asme b16 47 series b download now the architecture, engineering and construction aec industry is constantly looking for process improvements to better manage potential project delays and costs. Asme procedures and policies, which precludes the issuance of interpretations by individuals. Factory made wrought steel buttwelding induction bends for transportation and distribution systems. Large diameter steel flanges nps 26 through nps 60 metricinch standard informations as follow. No reproduction may be made of this material without written consent of asme. Customary units in either parenthetical or separate forms. Reducing flanges are available in all types and pressures.
This conflict has been picked up by the asme inspector who refused to allow the use of b16. Manually operated metallic gas valves for use in aboveground piping systems up to 5 psi asme b16. Dimensions for classes 400, 600 and 900 nps 38 and larger for series b flanges are the same as for the series a flanges. Cosponsors of the b16 committee were the american society of mechanical engineers asme, the heating. Asme issues written replies to inquiries concerning interpretations of technical aspects of this.
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