This standard specifies the type, dimension, technical requirements and marking for the PN-designated slip-on-welding plate steel pipe flanges.
This standard is applicable to PN 2.5~PN 100 slip-on-welding plate steel pipe flanges.
2 Normative References
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, all parties coming to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 9112 Types and Parameters for Steel Pipe Flanges
GB/T 9124 Specification for Steel Pipe Flanges
3 Types and Dimensions
3.1 Sealing face type and scope for applicable nominal pressure and nominal dimension of PN-designated slip-on-welding plate steel pipe flanges shall meet the requirements of Table 1.
Table 1 Sealing Face Type and Scope for Applicable Nominal Pressure and Nominal Dimension of PN-designated Slip-on-welding Plate Steel Pipe Flanges
