This standard specifies the types and dimensions of tongue-and-groove face with neck socket welding steel pipe flanges with nominal pressure PN of 5.0, 11.0, 15.0 and 26.0 MPa. This standard applies to tongue-and-groove face with neck socket welding steel pipe flanges with nominal pressure PN5.0 to PN26.0 MPa. GB/T 9117.3-2000 Tongue-and-groove face with neck socket welding steel pipe flanges GB/T9117.3-2000 Standard download decompression password: www.bzxz.net

1 Scope
National Standard of the People's Republic of China
Hubbed socket welding steel pipe flangeswith tongue and groove face
GB/T9117.3—2000
Replaces GB/T 9117. 7~9117. 8 -1988This standard specifies the types and dimensions of steel pipe flanges with tongue and groove face with nominal pressure PN of 5.0, 11.0, 15.0 and 26.0MPa.
This standard applies to steel pipe flanges with tongue and groove face with nominal pressure PN5.0~PN26.0MPa. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. The versions shown are valid at the time of publication of this standard. All standards will be revised, and the 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 steel pipe flanges with socket welding and neck with grooves shall comply with the provisions of Figure 1, and the sizes 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 shall be marked according to nominal diameter, nominal pressure, sealing surface type code and standard number. 5.2 The type code of flange sealing surface shall comply with the provisions of GB/T9112. 5.3 Marking example
Neck socket welding steel pipe flange with nominal diameter of 80mm and nominal pressure of 5.0MPa (50bar): Flange DN80-PN50 T GB/T 9117.3-2000 Groove neck socket welding steel pipe flange with nominal diameter of 80mm and nominal pressure of 5.0MPa (50bar); Flange DN80-PN50 G GB/T 9117.3-2000 Approved by the State Administration of Quality and Technical Supervision on September 28, 2000 170
Implementation on July 1, 2001
GB/T9117.3---2000
Figure 1 Groove face (TG) neck socket welding steel pipe flange (applicable to PN5.0, PN11.0, PN15.0 and PN26.0 MPa) nominal
GR/T 9117. 3--2000
Table 1PN5.0 MPa (50bar) sample groove face with neck socket welding steel pipe flange connection size
bolt hole
outer diameter flange center circle bolt
diameter random diameter number
165127.018
8088.9210168.522
8M16|103
M20/116105
M20138
flange method
93.5171.5
106.5
106.5
128. 5/106. 5 | | tt | 78..1 90. 7
43 :118
PN11.0MPa(110bar) sample groove surface with neck socket welding steel pipe flange joint size
bolt hole
flange center circle bolt
number thread
diameter random diameter
13598.518
165127.018
190149.022
88.9210168.52218
M20138
flange flange|| tt||127128.5106.5
Thickness height
Bearing hole
GB/T9117.3—2000
Table 3PN15.0MPa(150bar)grooved neck socket welding steel pipe flange connection
Bolt hole
Flange center circle bolt
Diameter
180/124.029.5
215165.0:26
2451190. 5 29.bzxz.net
88.9240190.526
Bolt hole
Flange center circle bolt
Sealing surface
Flange flange
Thickness height
PN26.0MPa (260bar) groove surface with neck socket welding steel pipe flange seal
Outer diameter
26.913089.022
150101.5|26
48.3180 124. 0
245190.529.5
Socket hole
Socket hole
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