This standard specifies the types and dimensions of raised face socket-welded steel pipe flanges with nominal pressures PN 2.0, 5.0, 11.0, 15.0 and 26.0 MPa. This standard applies to raised face socket-welded steel pipe flanges with nominal pressures PN 2.0 to PN 26.0 MPa. GB/T 9117.1-2000 Raised face socket-welded steel pipe flanges with nominal pressures PN 2.0 to PN 26.0 MPa. GB/T 9117.1-2000 Raised face socket-welded steel pipe flanges GB/T9117.1-2000 Standard download decompression password: www.bzxz.net

1 Scope
National Standard of the People's Republic of China
Hubbed socket welding steel pipe flangeswith raised face
GB/T 9117.1--2000
Replaces GB/T 9117.2-9117.--1988This standard specifies the types and sizes of raised face socket welding steel pipe flanges with raised face and neck with nominal pressure PN of 2.0, 5.0, 11.0, 15.0 and 26.0MPa.
This standard is applicable to raised face socket welding steel pipe flanges with nominal pressure PN2.0~PN26.0MPa. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T9112-2000 Types and parameters of steel pipe flanges GB/T9124-2000 Technical conditions for steel pipe flanges 3 Types and sizes of flanges
PN2.0, PN5.O, PN11.O, PN15.0 and PN26.0MPa The types of raised-face, necked, socket-welded steel pipe flanges shall comply with the provisions of Figures 1 and 2, and the sizes shall comply with the provisions of Tables 1 to 5. 4 Technical requirements for flanges
4.1 The technical requirements for flanges shall comply with the provisions of GB/T9124. 4.2 The maximum non-impact working pressure of flanges at different temperatures shall comply with the provisions of Appendix A (Standard Appendix) of GB/T9124--2000.
4.3 The welding joint type and groove size of flanges shall comply with the provisions of Appendix B (Suggestive Appendix) of GB/T9124-2000. 5 Marking
5.1 Flanges shall be marked according to nominal diameter, nominal pressure, sealing surface type code and standard number. 5.2 The type code of the flange sealing surface shall comply with the provisions of GB/T9112. 5.3 Marking example
Raised face socket-welded steel pipe flange with a nominal diameter of 80 mm and a nominal pressure of 5.0 MPa (50 bar): Flange DN80-PN50 RFGB/T 9117.1—2000Approved by the State Administration of Quality and Technical Supervision on September 28, 2000162
Implementation on July 1, 2001
GB/T9117.1--2000
Figure 1 Raised face (RF) socket-welded steel pipe flange with a neck (applicable to PN2.0 and PN5.0 MPa)
Figure 2 Raised face (RF) socket-welded steel pipe flange with neck (applicable to PN11.0, PN15.0 and PN26.0MPa)163
GB/T9117.1—2000
PN2.0MPa (20bar) Raised face socket-welded steel pipe flange with neckTable 1
Bolt hole
Center circle
Sealing surface
PN5.0MPa (50bar) Raised face socket-welded steel pipe flange with neck
Center circle
Sealing surfacewww.bzxz.net
PN11.0MPa (110b ar) Raised face socket welded steel pipe flange with neck
Bolt hole
Center circle
Sealing surface
Thickness height
GB/T9117.1:-2000
Table 4 PN15.0MPa (150bar) Raised face socket welded steel pipe flange with neck
Bolt hole
Center circle
Sealing surface
Flange Flange
PN26.0MPa (260bar) Raised face socket welded steel pipe flange with neck
Bolt hole
Center circle
Sealing surface
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