This standard specifies the types and dimensions of concave and convex face socket welding steel pipe flanges with nominal pressures PN 5.0, 11.0, 15.0 and 26.0 MPa. This standard applies to concave and convex face socket welding steel pipe flanges with nominal pressures PN5.0 to PN26.0 MPa. GB/T 9117.2-2000 Concave and convex face socket welding steel pipe flanges with nominal pressures PN 5.0 to PN 26.0 MPa. GB/T 9117.2-2000 Concave and convex face socket welding steel pipe flanges GB/T9117.2-2000 Standard download decompression password: www.bzxz.net

1 Scope
National Standard of the People's Republic of China
Hubhed socket welding steel pipe flangeswithmaleand female face
GB/T 9117.2 2000
Replaces GR/T 9117.5-~9117.6-1988This standard specifies the types and dimensions of hubhed socket welding steel pipe flanges with male and female face with nominal pressures PV of 5.0, 11.0, 15.0 and 26.0MPa.
This standard is applicable to hubhed socket welding steel pipe flanges with male and female face with nominal pressures PN5.0~PN26.0MPa.Cited Standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard was published, the versions shown were all valid. All standards will be revised. All 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
PN5.0.PN11.0, PN15.0 and PN26.0MPa The types of concave and convex surface neck socket welding steel pipe flanges shall comply with the provisions of Figure 1, and the dimensions shall comply with the provisions of Tables 1 to 4. 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 should 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 should comply with the provisions of GB/T9112 5.3 Marking example
Convex neck socket welding steel pipe flange with nominal diameter of 80mm and nominal pressure of 5.0MPa (50bar): flange DN80-PN50 M GB/T 9117.2--2000Concave neck socket welding steel pipe flange with nominal diameter of 80mm and nominal pressure of 5.0MPa (50bar): flange DN80-PN50F GIB/T9117.2--2000Approved by the State Administration of Quality and Technical Supervision on September 28, 2000166
Implementation on July 1, 2001
GB/T 9117.2—2000
Figure 1 Concave and convex surface (MF) socket-welded steel pipe flange with neck (applicable to PN5.0, PN11.0, PN15.0 and PN26.0MPa) 167
GB/T9117.2--2000
PN5.0MPa (50bar) is called convex surface socket-welded steel pipe flange with neck. Table 1
Bolt hole
Center circle bolt
Bolt hole
M16|103
M20116
M20138
Thickness! Height
Socket
10062.57.4.5
PN11.0MPa(110bar)Concave and convex surface with neck socket welding steel pipe flange size
Center circle
1351 98.5
1651127.0
Sealing surface
Socket
GB/T9117.22000
Table 3PN15.0MPa(150bar)convex and concave surface with neck socket welding steel pipe flange
Bolt hole
Center circle bolt
Bolt hole
Flange center circle
M20146
M241138
PN26.0MPa(260bar)convex and concave surface with neck socket welding steel pipe flange size
M27116
Sealing surface
Socketwww.bzxz.net
Socket
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