1、Type Testing of Process Valve Packing for Fugitive EmissionsAPI STANDARD 622SECOND EDITION, OCTOBER 2011Type Testing of Process Valve Packing for Fugitive EmissionsDownstream SegmentAPI STANDARD 622SECOND EDITION, OCTOBER 2011Special NotesAPI publications necessarily address problems of a general na
2、ture. With respect to particular circumstances, local,state, and federal laws and regulations should be reviewed.Neither API nor any of APIs employees, subcontractors, consultants, committees, or other assignees make anywarranty or representation, either express or implied, with respect to the accur
3、acy, completeness, or usefulness of theinformation contained herein, or assume any liability or responsibility for any use, or the results of such use, of anyinformation or process disclosed in this publication. Neither API nor any of APIs employees, subcontractors,consultants, or other assignees re
4、present that use of this publication would not infringe upon privately owned rights.API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to assure theaccuracy and reliability of the data contained in them; however, the Institute makes no representatio
5、n, warranty, orguarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss ordamage resulting from its use or for the violation of any authorities having jurisdiction with which this publication mayconflict.API publications are published to f
6、acilitate the broad availability of proven, sound engineering and operatingpractices. These publications are not intended to obviate the need for applying sound engineering judgmentregarding when and where these publications should be utilized. The formulation and publication of API publicationsis n
7、ot intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standardis solely responsible for complying with all the applicable requirements of that standard. API does not represent,war
8、rant, or guarantee that such products do in fact conform to the applicable API standard.Classified areas may vary depending on the location, conditions, equipment, and substances involved in any givensituation. Users of this standard should consult with the appropriate authorities having jurisdictio
9、n.Users of this standard should not rely exclusively on the information contained in this document. Sound business, sci-entific, engineering, and safety judgment should be used in employing the information contained herein.API is not undertaking to meet the duties of employers, manufacturers, or sup
10、pliers to warn and properly train andequip their employees, and others exposed, concerning health and safety risks and precautions, nor undertaking theirobligations to comply with authorities having jurisdiction.Information concerning safety and health risks and proper precautions with respect to pa
11、rticular materials and condi-tions should be obtained from the employer, the manufacturer or supplier of that material, or the material safety datasheet.All rights reserved. No part of this work may be reproduced, translated, stored in a retrieval system, or transmitted by any means, electronic, mec
12、hanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, NW, Washington, DC 20005.Copyright 2011 American Petroleum InstituteForewordThis standard is under the jurisdiction of the API Subcommit
13、tee on Piping.This standard shall become effective on the date printed on the cover, but may be used voluntarily from the date ofpublication.Nothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for themanufacture, sale, or use of any method,
14、 apparatus, or product covered by letters patent. Neither should anythingcontained in the publication be construed as insuring anyone against liability for infringement of letters patent.Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to the specification.Shou
15、ld: As used in a standard, “should” denotes a recommendation or that which is advised but not required in orderto conform to the specification. This document was produced under API standardization procedures that ensure appropriate notification andparticipation in the developmental process and is de
16、signated as an API standard. Questions concerning theinterpretation of the content of this publication or comments and questions concerning the procedures under whichthis publication was developed should be directed in writing to the Director of Standards, American PetroleumInstitute, 1220 L Street,
17、 NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any partof the material published herein should also be addressed to the director.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A one-timeextension of up to tw
18、o years may be added to this review cycle. Status of the publication can be ascertained from theAPI Standards Department, telephone (202) 682-8000. A catalog of API publications and materials is publishedannually by API, 1220 L Street, NW, Washington, DC 20005.Suggested revisions are invited and sho
19、uld be submitted to the Standards Department, API, 1220 L Street, NW,Washington, DC 20005, standardsapi.org.iiiContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Re
20、ference Publications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Terms and Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、. . . . . . . . . 24 Fugitive Emissions Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.1 Test Fixture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、. . . . . . . . . . . . . . . . . . . . . . . . . . 44.2 Leak Test Equipment Selection and Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.3 Packing Selection and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23、 . . . . . . . . . . . . . . . . . . . . . . . . . . 74.4 Test Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Corrosion Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115.1 Corrosion Test Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115.2 Pre-Test Requirements . . . . . . . . . . . .
25、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115.3 Ambient Corrosion Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.4 High Temperature Corrosion
26、 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.5 Corrosion Test Reporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146 Packing Material
27、s Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.1 Weight Loss Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、 . . 156.2 Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.3 Lubricant Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、 . . . . . . . . . . . . . . . . . . . . . . 166.4 Leachables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176.5 Packing Materials Test Reporting . . . . . . . . . . . . . . . . . . . . . . .
30、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Annex A (normative) NEEDS TITLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Annex B (normative) Emissions Test Fixture Construction. . . . . . . .
31、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Annex C (normative) High Temperature Corrosion Test Fixture Construction . . . . . . . . . . . . . . . . . . . . . . . . . . 28Figures1 Emission Test Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Mechanical and Thermal Cycling Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Emission Test Equipment Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Emission Test Fixture Detail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 Corrosion Test Vessel. . . . . . . . . . . . . . . . . . . . . . . . . . .
34、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Compression Test Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 High Temperature Corrosion Test System . . . . . . . . .
35、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14B.1 Emissions Test Fixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27C.1 High Temperature Corrosion Test Fixture . . . .
36、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29TablesA.1 Fugitive Emissions Test Report Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18A.2 Ambient Temperature Corrosion Test Data Sheet.
37、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21A.3 High Temperature Corrosion Test Data Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22A.4 Material Test Report . . . . . . . . . . . . . . . . . . . .
38、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23vIntroductionThe purpose of this API standard is to establish a uniform procedure for evaluation of process valve stem packing.The testing approaches defined within this standard provide a method for
39、 evaluating packing systems. This testingprogram shall provide a basis for the comparison of the emissions and life cycle performance of packing. Use of this standard assumes the execution of its provisions is entrusted to appropriately qualified and experiencedpersonnel because it calls for procedu
40、res that can be injurious to health if adequate precautions are not taken. Thisstandard refers only to technical suitability and does not absolve the user from legal obligations relating to health andsafety at any stage of the procedure.1Type Testing of Process Valve Packing for Fugitive Emissions1S
41、copeThis standard specifies the requirements for comparative testing of valve stem packing for process applicationswhere fugitive emissions are a consideration. Packing(s) shall be suitable for use at service temperatures 29 C to538 C (20 F to 1000 F). Factors affecting fugitive emissions performanc
42、e that are considered by this standardinclude temperature, pressure, thermal cycling, mechanical cycling, and corrosion.This standard is not intended to replace type testing of valve assemblies or valve production testing. This standard establishes requirements and parameters for the following tests
43、: a) fugitive emissions,b) corrosion, andc) packing material composition and properties.Test methods apply to packing for use in on-off valves with the following stem motion(s):a) rising stem, andb) rotating stem. The test for fugitive emissions is based upon elements of EPA Method 21, providing com
44、parative values of packingperformance.2 Reference PublicationsThe following standards contain provisions that, through reference in this text, constitute provisions of this APIstandard. At the time of the publication, the editions indicated were valid. All standards are subject to revision, andparti
45、es to agreements based on this standard are encouraged to investigate the possibility of applying the most recenteditions of the standards indicated below. ASME B16.51, Pipe Flanges and Flanged FittingsASME B16.20, Metallic Gaskets for Pipe FlangesRing Joint, Spiral-wound, and JacketedASME B16.34, V
46、alvesFlanged, Threaded and Welding EndASME SECT VIII DIV2, ASME Boiler and Pressure Vessel CodeEPA2Method 21, Determination of Volatile Organic Compound LeaksFSA3-G-604-07, Oxidation Test Standard for Flexible Graphite Gasket MaterialsMSS4SP-120, Flexible Graphite Packing System for Rising Stem Stee
47、l ValvesDesign Requirements1ASME International, 3 Park Avenue, New York, New York 10016-5990, www.asme.org.2U.S. Environmental Protection Agency, 109 TW Alexander Drive, Durham, North Carolina 27709, www.epa.gov.3Fluid Sealing Association, 994 Old Eagle School Road, Suite 1019, Wayne, Pennsylvania 1
48、9087-1866, .4Manufacturers Standard Society, 889 North Freedom Boulevard, Suite 100, Provo, Utah 84604, .2 API STANDARD 6223 Terms and DefinitionsFor the purposes of this standard, the following definitions shall apply.3.1active inhibitorA type of galvanic corrosion inhibitor, applied as a surface c
49、oating to packing or added to packing material during thedie-forming process, providing a sacrificial anode material corroding in preference to the surrounding metal. See alsocorrosion inhibitor, galvanic corrosion, passive inhibitor, and pitting. 3.2actuateTo cause movement of a valve stem either by raising, lowering or turning it.3.3anti-extrusion ringA ring of packing used at one or both ends of a packing set to prevent extrusion of packing material into clearances. 3.4ambient temperatureTemperature of testing facility that is between 15 C (6
copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
备案/许可证编号：苏ICP备17064731号-1