1、Recommended Practice forRepair,Testing,and SettingGas Lift ValvesAPI RECOMMENDED PRACTICE 11V7SECOND EDITION,JUNE 1999REAFFIRMED APRIL 2008 Recommended Practice forRepair,Testing,andSetting Gas Lift Valves Upstream Segment API RECOMMENDED PRACTICE 11V7SECOND EDITION,JUNE 1999 SPECIAL NOTES API publi
2、cations necessarily address problems of a general nature.With respect to partic-ular circumstances,local,state,and federal laws and regulations should be reviewed.API is not undertaking to meet the duties of employers,manufacturers,or suppliers towarn and properly train and equip their employees,and
3、 others exposed,concerning healthand safety risks and precautions,nor undertaking their obligations under local,state,or fed-eral laws.Information concerning safety and health risks and proper precautions with respect to par-ticular materials and conditions should be obtained from the employer,the m
4、anufacturer orsupplier of that material,or the material safety data sheet.Nothing contained in any API publication is to be construed as granting any right,byimplication or otherwise,for the manufacture,sale,or use of any method,apparatus,or prod-uct covered by letters patent.Neither should anything
5、 contained in the publication be con-strued as insuring anyone against liability for infringement of letters patent.Generally,API standards are reviewed and revised,reafrmed,or withdrawn at least everyve years.Sometimes a one-time extension of up to two years will be added to this reviewcycle.This p
6、ublication will no longer be in effect ve years after its publication date as anoperative API standard or,where an extension has been granted,upon republication.Statusof the publication can be ascertained from the API Upstream Segment telephone(202)682-8000.A catalog of API publications and material
7、s is published annually and updated quar-terly by API,1220 L Street,N.W.,Washington,D.C.20005.This document was produced under API standardization procedures that ensure appropri-ate notication and participation in the developmental process and is designated as an APIstandard.Questions concerning th
8、e interpretation of the content of this standard or com-ments and questions concerning the procedures under which this standard was developedshould be directed in writing to the general manager of the Upstream Segment,AmericanPetroleum Institute,1220 L Street,N.W.,Washington,D.C.20005.Requests for p
9、ermissionto reproduce or translate all or any part of the material published herein should also beaddressed to the general manager.API standards are published to facilitate the broad availability of proven,sound engineer-ing and operating practices.These standards are not intended to obviate the nee
10、d for apply-ing sound engineering judgment regarding when and where these standards should beutilized.The formulation and publication of API standards is not intended in any way toinhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance with the ma
11、rkingrequirements of an API standard is solely responsible for complying with all the applicablerequirements of that standard.API does not represent,warrant,or guarantee that such prod-ucts do in fact conform to the applicable API standard.All rights reserved.No part of this work may be reproduced,s
12、tored in a retrieval system,or transmitted by any means,electronic,mechanical,photocopying,recording,or otherwise,without prior written permission from the publisher.Contact the Publisher,API Publishing Services,1220 L Street,N.W.,Washington,D.C.20005.Copyright 1999 American Petroleum Institute FORE
13、WORD a.This specication is under the jurisdiction of the API Subcommittee on Standardizationof Field Operative Equipment.b.American Petroleum Institute(API)Recommended Practices are published to facilitatethe broad availability of proven,sound engineering and operating practices.These Recom-mended P
14、ractices are not intended to obviate the need for applying sound judgment as towhen and where these Recommended Practices should be utilized.c.The formulation and publication of API Recommended Practices is not intended to,inany way,inhibit anyone from using any other practices.d.Any Recommended Pra
15、ctice may be used by anyone desiring to do so,and a diligenteffort has been made by API to assure the accuracy and reliability of the data containedherein.However,the institute makes no representation,warranty or guarantee in connectionwith the publication of any Recommended Practice and hereby expr
16、essly disclaims any lia-bility or responsibility for loss or damage resulting from its use,for any violation of anyfederal,state or municipal regulation with which an API recommendation may conict,orfor the infringement of any patent resulting from the use of this publication.e.This Standard shall become effective on the date printed on the cover but may be usedvoluntarily from the date of distribution.API publications may be used by anyone desiring to do so.Every effort has been made bythe Inst