API STD 602-2022 石油和天然气工业用公称尺寸小于和等于NPS 4 （DN 100）的闸阀、截止阀和止回阀.pdf
文档页数：70文档大小：7.15MB文档格式：pdfGate Globe and Check Valves for Sizes DN 100 (NPS 4)and Smaller for the Petroleum and Natural Gas Industries API STANDARD 602 ELEVENTH EDITION MAY 2022 AP American Petroleum Institute Copyright American Petroloum Irstitute Special Notes API publications necessarily address problems of a general nature.With respect to particular circumstances local state and federal laws and regulations should be reviewed.The use of API publications is voluntary.In some cases third parties or authorities having jurisdiction may choose to incorporate API standards by reference and may mandate pliance. Neither API nor any of API's employees subcontractors consultants mittees or other assignees make any warranty or representation either express or implied with respect to the accuracypleteness or usefulness of the information contained herein or assume any liability or responsibility for any use or the results of such use of any information or process disclosed in this publication.Neither API nor any of API's employees subcontractors consultants or other assignees represent 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 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 responsibility for lo...
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