ASME_B16.1-1998
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ID： |
C91A88716A0B4D8294CD42A0004C0010 |
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文件大小(MB)： |
1.6 |
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页数： |
41 |
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文件格式： |
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日期： |
2007-3-13 |
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购买： |
文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
COPYRIGHT American Society of Mechanical Engineers,Licensed by Information Handling Services,The American Society of,Mechanical Engineers,A N A M E R I C A N A T I O N A L S T A N D A R D,CAST IRON PIPE,FLANEES AND,FLANEED FITTINGS,Classes 25,125, and 250,ASME B1 6.1 -1 NU8,(Revision of ASMVANSI B1 6.1 -1 989),COPYRIGHT American Society of Mechanical Engineers,Licensed by Information Handling Services,STD-ASME BLh-L-ENGL L778 0757b70 ObOBL85 ‘421.1 W,Date of Issuance: March 19, 1999,The 1998 edition of this Standard is being issued with an automatic addenda,subscription service. The use of addenda allows revisions made in response,to public review comments or committee actions to be published oan regular,yearly basis; revisions published in addenda will become effective 6 months,after the Date of Issuance of the addenda. The next edition of this Standard,is scheduled for publication in 2003.,ASME issues written replies to inquiries concerning interpretations of,technical aspects of this Standard. The interpretations will be included with,the above addenda service.,ASME is the registered trademark of The American Society of Mechanical Engineers.,This code or standard was developed under procedures accrediteads meeting the criteria for,American National Standards. The Standards Committee that approved the code or standard,was balanced to assure that individuals from competent and concerned interests have had an,opportunity top articipate. The proposedc ode or standard was made availablefo r public review,and comment that providesa n opportunity for additional public input fromin dustry, academia,regulatory agencies, and the public-at-large.,ASME does not “approve,” “rate,” or ”endorse” any item, construction, proprietary device,or activity.,ASME does not take any position with respect to the validity of anyp atent rights asserted in,connection with any items mentioned in this document, and udnodeesr t ankoet to insure anyone,utilizing as tandard againstl iability for infringement of any applicable LetterPs atent, nor assumes,any such liability. Users of a code or standard are expressly advised that determination of the,validity of any such patent rights, and the risk of infringement of such rights, is entirely their,own responsibility.,Participation by federal agency representative(s) or person(s)a ffiliated with industryi s not to,be interpreted as government or industry endorsement of this code ors tandard.,ASME accepts responsibilityforonlythose interpretations issued in accordance with governing,ASME procedures and policies which precludes the issuance of interpretations by individual,volunteers.,No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of thep ublisher.,The American Society of Mechanical Engineers,Three Park Avenue, New York, NY 10016-5990,Copyright 8 1999 by,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,All Rights Reserved,Printed in U.S.A.,COPYRIGHT American Society of Mechanical Engineers,Licensed by Information Handling Services,STD-ASME BLb*L-ENGL 1998 m 0759b70 ObOBL8b 3b0 9,FOREWORD,(This Foreword is not part of ASME 616.1-1998.),In 1894, the American Society of Mechanical Engineers (ASME) adopted a standard,flange template (“ASME Standard”) for low-pressure service. A “Manufacturers Standard’,for pressures up to 250 psi followed in 1901. Around 1910, a group of fittings manufacturers,formed an organization that was the forerunner of the present Manufacturers Standardization,Society of the Valve and Fittings Industry (MSS) and undertook the design of a line of,flanged fittings. A document covering this work was published in 1912.,During the years 1912-1914, a Joint Committee of the ASME and the Manufacturers,Committee formulated compromise standard dimensions for pipe flanges and flanged fittings,for use under saturated steam pressures of 125 psi and 250 psi pressure ranges. The Joint,Committee’s report was accepted at a conference attended by representatives of ASME, the,Manufacturers Committee, the U.S. government, and the National Association of Master,Steam and Hot Water Fitters. ASME published this report as the “American Standard for,Pipe Flanges, Fittings and Their Bolting” in 1914. In 1918, work was started on standards,for 50 lb steam flanges and for 800 lb, 1200 lb, and 3000 lb hydraulic flanges, which,were subsequently approved by this group.,In 1921, the American Engineering Standards Committee, later known as the American,Standards Association (ASA), United States of America Standards Institute (USAS), and,more recently, the American National Standards Ins……
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