ImageVerifierCode 换一换
格式:PDF , 页数:20 ,大小:3.80MB ,
资源ID:167177      下载积分:14 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。 如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【https://www.wnwk.com/docdown/167177.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: QQ登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(ASME_B16.40-2002.pdf)为本站会员(益****师)主动上传,蜗牛文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知蜗牛文库(发送邮件至admin@wnwk.com或直接QQ联系客服),我们立即给予删除!

ASME_B16.40-2002.pdf

1、The American Society ofMechanical EngineersN ATION ALSTAN D A RMANUALLY OPERATEDTHERMOPLASTICGAS SHUTOFFSAND VALVES IN GASDISTRIBUTION SYSTEMSASME B16.40-2002Revision of ANSI/ASME B16.40-1985(R1994)No roproduction or notworking permitled without liconso from IHSNot for RosaleDate of Issuance:July 15

2、,2002The next edition of this Standard is scheduled for publication in 2007.Therewill be no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations oftechnical aspects of this Standard.ASME is the registered trademark of The American Society of Mechanical E

3、ngineers.This code or standard was developed under procedures accredited as meeting the criteria forAmerican National Standards.The Standards Committee that approved the code or standardwas balanced to assure that individuals from competent and concerned interests have had anopportunity to participa

4、te.The proposed code or standard was made available for public reviewand comment that provides an opportunity for additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not approve,rate,or endorseany item,construction,proprietary device,or activity.ASME

5、does not take any position with respect to the validity of any patent rights asserted inconnection with any items mentioned in this document,and does not undertake to insure anyoneutilizing a standard against liability for infringement of any applicable letters patent,nor assumeany such liability.Us

6、ers of a code or standard are expressly advised that determination of thevalidity of any such patent rights,and the risk of infringement of such rights,is entirely theirown responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not tobe interpreted as

7、 government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued inaccordance with the established ASME procedures and policies,which precludes the issuanceof interpretations by individuals.No part of this document may be

8、 reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright2o02byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll Rights ReservedPrinted in U.

9、S.A.。with ASMENo roproduction or notworking permitled without liconso from IHSNot for RosaleCONTENTSForew0rdivStandards Committee Roster.dCorrespondence With the B16 Committee.vi1 Scope,。4。4+444。+4。412Construction.1Production and Qualification Testing.3Tables1Pressure Ratings for Valves for Service

10、Temperatures From-20 to 73F(-29 to 23C).32Duration of Test.3Maximum Operating Torque Values.54AMinimum Sustained Pressure Test Requirements at 73F(23C).J4BMinimum Sustained Pressure Test Requirements at 100F(38C).55Flow and Head Loss Coefficients.6Mandatory AppendicesDesign Pressure for Valves.9Refe

11、rences“10Nonmandatory AppendixA Quality System Program.11No roproduction or notworking permitled without liconso from IHSNot for RosaleFOREWORDThe B16 Standards Committee was organized in the spring of 1920 and held itsorganizational meeting on November 21 of that year.The group operated as a Sectio

12、nalCommittee(later redesignated as a Standards Committee)under the authorization of theAmerican Engineering Standards Committee subsequently named American Standards Associ-ation,United States of America Standards Institute,and now American National StandardsInstitute(ANSI).Sponsors for the group we

13、re the American Society of Mechanical Engineers,Manufacturers Standardization Society of the Valve and Fittings Industry,and the Heatingand Piping Contractors Naational Association(later the Mechanical Contractors Associationof America).The American Gas Association determined that standardization of

14、 gas valves used indistribution systems was desirable and needed.The A.G.A.Task Committee on Standardsfor Valves and Shutoffs was formed and development work commenced in 1958.In 1968it was determined that a more acceptable document would result if approval were gainedfrom ANSI,and to facilitate suc

15、h action the A.G.A.Committee became Subcommittee No.13 of the B16 activity.This B16 group was later renamed Subcommittee L,which is itscurrent designation.The first standard developed by Subcommittee L was B16.33.The B16.38 standard wassubsequently developed to cover larger sizes of gas valves and s

16、hutoffs.Since about 1965,the increased use of plastic piping in gas distribution systems brought with it the need forvalves and shutoffs of compatible material.To fill this need,the present standard wasdeveloped and initially appeared as ANSI B16.40-1977.Subcommittee L began review ofthis document i

17、n 1982.Editorial changes were made throughout the text to bring the format in line with therest of the B16 series of standards and to clarify the intent of this Standard.Revisionsinclude addition of rules for allowable pressure at temperatures above 74F for valves ofcertain materials,updating of ref

18、erence standards,and editorial changes to text and tables.The cover,headings,and designation of the Standard have also been revised to reflectreorganization of the B16 Committee as an ASME Committee whose procedures areaccredited by ANSI.This Standard is offered on a subscription service basis that

19、includesinterpretations and addenda up to the issuance of a new edition.All requests for interpretations or suggestions for revisions should be sent to the Secretary,B16 Committee,The American Society of Mechanical Engineers,Three Park Avenue,NewYork.NY 10016.In 2001,after several years and iteratio

20、ns,B16 Subcommittee L produced a fully reviseddocument.Among the many revisions were a new Definitions section,a new ImpactResistance section,and a nonmandatory Quality Systems Program Annex.Following approval by the B16 Main Committee and the ASME Supervisory Board,thisStandard was approved as an American National Standard by ANSI on February 6,2002.ivNo roproduction or notworking permitled without liconso from IHSNot for Rosale

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2