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Specification for high pressure threaded joints through-tank fittings CB 203-2002

  • 2013-09-22
  • 134.44KB
  • Points it Requires : 1

This specification specifies the requirements, quality assurance provisions and delivery preparation for high-pressure threaded joint through-tank fittings (hereinafter referred to as through-tank fittings). This specification applies to the design, manufacture and acceptance of through-tank fittings for military ship piping systems with air as the medium and a nominal pressure not higher than 25.0 MPa. 2 Normative references The provisions in the following normative documents become the provisions of this specification through reference in this specification. For the following referenced documents with dates or editions, any subsequent amendments or revisions are not applicable to this specification, but it is recommended that all parties using this specification explore the possibility of using its latest version. For the following referenced documents without dates or editions, their latest versions apply to this specification. GB/T 3-1997 Thread finish, shoulder distance, undercut and chamfer GB/T 197-1981 Ordinary thread tolerances and fits (diameter 1^-355mm) GB/T 699-1999 High-quality carbon structural steel 3 Requirements 3.1 Structure and specification dimensions 3.1.1 Basic parameters of through-tank pipe fittings are as shown in Table 1. Table 1 Basic parameters of through-tank pipe fittings

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