1、Lock Mandrels and Landing NipplesAPI SPECIFICATION 14L THIRD EDITION,JUNE 2020API MONOGRAM PROGRAM EFFECTIVE DATE:JUNE 1,2021 Special NotesAPI publications necessarily address problems of a general nature.With respect to particular circumstances,local,state,and federal laws and regulations should be
2、 reviewed.Neither API nor any of APIs employees,subcontractors,consultants,committees,or other assignees make any warranty or representation,either express or implied,with respect to the accuracy,completeness,or usefulness of the information contained herein,or assume any liability or responsibility
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4、y anyone desiring to do so.Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them;however,the Institute makes no representation,warranty,or guarantee in connection with this publication and hereby expressly disclaims any liability or responsi
5、bility for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication may conflictAPI publications are published to facilitate the broad availability of proven,sound engineering and operating practices.These publications are not inte
6、nded to obviate the need for applying sound engineering judgment regarding when and where these publications should be used.The formulation and publication of API publications is not intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equipment or materials
7、in conformance with the marking requirements of an API standard is solely responsible for complying with all the applicable requirements of that standard.API does not represent,warrant,or guarantee that such products do in fact conform to the applicable API standard.All rights reserved.No part of th
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9、DC 20001-5571.Copyright 2020 American Petroleum Instituteii ForewordThis specification is under the jurisdiction of the API SC19,Subcommittee on Completion Equipment.Standards referenced herein may be replaced by other international or national standards that can be shown to meet or exceed the requi
10、rements of the referenced standard.Manufacturers electing to use another standard in lieu of a referenced standard are responsible for documenting equivalency.Nothing contained in any API publication is to be construed as granting any right,by implication or otherwise,for the manufacture,sale,or use
11、 of any method,apparatus,or product covered by letters patent.Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent.This document was produced under API standardization procedures that ensure appropriate notification
12、 and participation in the developmental process and is designated as an API standard.Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publication was developed should be directed in writing to the Director
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14、trants,this standard shall become effective on the program date printed on the cover but may be used voluntarily from the date of publication.Generally,API standards are reviewed and revised,reaffirmed or withdrawn at least every 5 years.A one-time extension of up to 2 years may be added to this rev
15、iew cycle.Status of the publication can be ascertained from the API Standards Department,telephone(202)682-8000.A catalog of API publications and materials is published annually by API,200 Massachusetts Avenue,NW,Suite 1100,Washington,DC 20001.Suggested revisions are invited and should be submitted
16、to the Standards and Publications Department,API,1220 L Street,NW,Washington,DC 20005,standardsapi.org.iiiThe verbal forms used to express the provisions in this document are as follows:the term“shall”denotes a minimum requirement in order to conform to the specification;the term“should”denotes a recommendation or that which is advised but not required in order to conform to thespecification;the term“may”is used to express permission or a provision that is optional;andthe term“can”is used to exp
