1、 Specification for Subsea Pipeline Valves API SPECIFICATION 6DSS THIRD EDITION,AUGUST 2017 API MONOGRAM PROGRAM EFFECTIVE DATE:AUGUST 1,2018 ERRATA 1,MAY 2018 ERRATA 2,JULY 2018 ADDENDUM 1,APRIL 2019(API MONOGRAM PROGRAM EFFECTIVE DATE:JULY 1,2019)ADDENDUM 2,JUNE 2022(API MONOGRAM PROGRAM EFFECTIVE
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16、 Massachusetts Avenue,NW,Suite 1100,Washington,DC 20001.Suggested revisions are invited and should be submitted to the Standards Department,API,200 Massachusetts Avenue,NW,Suite 1100,Washington,DC 20001,standardsapi.org.iii Contents Page 1 Scope.1 2 Normative References.1 3 Terms,Definitions,Acronyms,Abbreviations,Symbols,and Units.3 3.1 Terms and Definitions.3 3.2 Acronyms,Abbreviations,Symbols,and Units.10 4 Valve Types and Configurations.12 4.1 Valve Types.12 4.2 Valve Configurations.13 5 Des
