CB 20002-2011 (English Version) PDF

Scope: This specification stipulates the requirements, quality assurance regulations, and delivery preparations for 25.0 MPa high-pressure air valve columns for ships (referred to as valve columns) whose joints are in accordance with CB 316-1995. This specification applies to the design, manufacture and acceptance of valve design columns for air piping systems with temperatures not higher than 120°C.

CB 20002-2011 Referenced Document

CB 316-1995 Specification for high-pressure pipe threaded joints
CB 862.2-1988 Technical conditions for non-ferrous metal forgings Copper alloy die forgings and free forgings
CB/T 3397 Static pressure life test of marine valves
GB/T 1184-1996 Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications
GB/T 1220-2007 Stainless steel bars
GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 1958 Geometrical Product Specifications(GPS)—Geometrical tolerance—Verification*， 2017-11-01 Update
GB/T 21652-2008 Copper and copper alloy wire
GB/T 3032 Marks for marine piping valves and fittings*， 2014-02-19 Update
GB/T 3098.15-2000 Mechanical properties of fasteners Nuts made of stainless-steel
GB/T 3098.6-2000 Mechanical properties of fasteners-Bolts,screws and studs made of stainless-steel
GB/T 5231-2001 Wrought copper and copper alloys chemical composition limits and forms of wrought products
GB/T 600 General technical specifications for ship pipeline valves*， 2023-03-17 Update

2011 CB 20002-2011 Specification for 25.0MPa high pressure air valve pillar of ship