This standard specifies the dimensions, tolerances, technical requirements, inspection and marking of the standard type carbon steel, alloy steel and austenitic stainless steel pipe fittings for flanged joint (including elbow, tee, cross, lateral tee and reducing joint) with the nominal pressure PN of 2.0, 5.0, 11.0, 15.0 and 26.0MPa.
2 Normative References
The following normative documents contain provisions which, through reference in this Standard, constitute provisions of this Standard. At time of publication, the editions indicated are valid. All standards are subject to revision, and parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB/T 17185-1997 The following standards are cited：