ASME A112.4.1-1993 (R2002) Water Heater Relief Valve Drain Tubes
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ID： |
286BAA22CEDB4EBEBC07AB567DA2C079 |
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文件大小(MB)： |
0.29 |
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页数： |
10 |
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文件格式： |
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日期： |
2008-6-11 |
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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）：
- ASME A I 1 2.4.1-1993,\ ',Water Heater Relief,Valve Drain Tubes,AN AMERICAN NATIONAL STANDARD,$$$ The American Society of,Mechanical Engineers,Copyright ASME International,Provided by IHS under license with ASME,No reproduction or networking permitted without license from IHS,--`,``,`,,``,`,`,``,`,`,,,`,,,`-`-`,,`,,`,`,,`---,ASME A332.4.3 93 W O759670 0543693 42T W,AN AMERICAN NATIONAL STANDARD,1,Water Heater Relief,Valve Drain Tubes,ASME AI 12.4.1-1993,The American Society of,I Mechanical Engineers I 345 East 47th Street, New York, N.Y. 1001 7 ~-,Copyright ASME International,Provided by IHS under license with ASME,No reproduction or networking permitted without license from IHS,--`,``,`,,``,`,`,``,`,`,,,`,,,`-`-`,,`,,`,`,,`---,Date of Issuance: June 3, 1994,This Standard will be revised when the Society approves the issuance of a new,edition. There will be no addenda or written interpretations of the requirements,of this Standard issued to this Edition.,ASME is the registered trademark of The American Society of Mechanical Engineers,This code or standard was developed under procedures accredited as meeting the criteria for,American National Standards. The Consensus Committee that approved the code or standard was,balanced to assure that individuals from competent and concerned interests have had an opportunity,to participate. The proposed code or standard was made available for public review and,comment which provides an opportunity for additional public input from industry, 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 any patent rights asserted in,connection with any items mentioned in this document, and does not undertake to insure anyone,utilizing a standard against liability for infringement of any applicable Letters Patent, nor assume,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) affiliated with industry is not to,be interpreted as government or industry endorsement of this code or standard.,ASME accepts responsibility for only those interpretations issued in accordance with governing,ASME procedures and policies which preclude 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 the publisher.,Copyright 0 1994 by,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,All Rights Reserved,Printed in U.S.A.,Copyright ASME International,Provided by IHS under license with ASME,No reproduction or networking permitted without license from IHS,--`,``,`,,``,`,`,``,`,`,,,`,,,`-`-`,,`,,`,`,,`---,ASME A112.4-1 93 O759670 0543b73 2T2,FOREWORD,(This Foreword is not part of ASME Al 12.4.1-1993.),There are potential hazards associated with heating of water in a closed vessel, as the potential,for excessive temperature or pressure development within such closed systems is always,present. In order to reduce the hazards associated with water heating, two special amendments,have been added to the plumbing codes and standards over the past few decades which have,resulted in much safer installations. The first requirement was that which involved the installation,of a high limit control in the water heating assembly, which deactivates the fuel gas,control mechanism if the water heating device exceeds a specific temperature. The second,requirement involved the installation of a temperature and pressure relief valve, which is designed,to open to atmosphere if the water temperature or pressure within a vessel exceeds the,defined specifications of the valve. Properly inspected and maintained, these devices provide,the “state-of-the-art” in water heater safety.,It should be known, however, that the effectiveness of the relief valve is based upon its,ability to relief the hot water or steam as quickly, yet as safely, as possible. Typically, for the,safety of the building inhabitants, a pipe or tubing is installed at the outlet of the relief valve,to direct the hot water or steam flow to a safe point. However, the installation of the drain,must not create a hazard. The installation of any drain piping or tubing downstream of the,relief valve must provide for the free passage of steam or hot water discharge. The drain tubing,should not be trapped. The drain sh……
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