This standard specifies the types and dimensions of steel pipe flanges with socket-welded necks and ring-joint surfaces with nominal pressures PN 2.0, 5.0, 11.0, 15.0 and 26.0 MPa. This standard applies to steel pipe flanges with socket-welded necks and ring-joint surfaces with nominal pressures PN 2.0 to PN 26.0 MPa. GB/T 9117.4-2000 Steel pipe flanges with socket-welded necks and ring-joint surfaces GB/T9117.4-2000 Standard download decompression password: www.bzxz.net

1 Scope
National Standard of the People's Republic of China
Hubbed socket welding steel pipe flangeswith ring-joint face
GB/T 9117.4--2000
This standard specifies the types and dimensions of steel pipe flanges with ring-joint face with neck and socket welding with nominal pressure PN of 2.0, 5.0, 11.0, 15.0 and 26.0MPa.
This standard is applicable to steel pipe flanges with ring-joint face with neck and socket welding 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 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
PN2.0, PN5.0, PN11.0, PN15.0 and PN26.0MPa The types of ring-joined steel pipe flanges with necks and socket welds shall comply with the provisions of Figure 1, 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 push) of GB/T9124-2000.
4.3 The welding joint type and groove size of flanges shall comply with the provisions of Appendix B (prompt 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
Ring-joint face neck socket welding steel pipe flange with nominal diameter of 80mm and nominal pressure of 5.0MPa (50bar): Flange DN80-PN50RJGB/T 9117.4—2000Approved by the State Administration of Quality and Technical Supervision on September 28, 2000174
Implementation on July 1, 2001
GB/T9117.4—2000
1) The height of the protruding part is the same as the depth dimension E of the trapezoidal groove, but is not subject to the tolerance of dimension E. The full flat surface with the outline shown by the dotted line is allowed. Figure 1 Ring joint (RJ) with neck socket welding steel pipe flange (applicable to PN2.0.PN5.0, PN11.0, PN15.0 and PN26.0 MPa) 175
Bolt hole
Nominal steel pipe
Outer diameter flange
3242.4120
4048.3130
50: 60.3150
GB/T 9117.4—2000
PN2.0MPa(20bar) Ring joint with neck socket welding steel pipe flange Sealing surface
Center circle
Number of random diameters
6573.0180139.5
80 88. 9 /190152.5
Connection size
Nominal steel pipe
Bolt hole
Outer diameter flange
Center circle bolt
2026.9120
4048.3155
5060.3165
47.626.35
M14R1563.5
M11R1773.0/57.156.35
82.565.07
M14R198
M16 R22|102. 082. 55
Send Lanlan
, socket and socket two methods
Thickness height
4926.534.5
41.049.5164
6.358.740.8
M16R25121.0101.606.358.740.822.529
M16R29133.0i114.306.358.740.824
301 0878.090.5
PN5.0MPa (50bar) ring connection surface with neck socket welding steel pipe flange size
Nipple diameter number thread
Groove number Jmin
Sealing surface
4M14|R11)51.034.145.56
4|M16|R13
63.542.886.35
Flange flange method
Thickness height
8. 740.816. 0 25
[M16R18|79.5
4M20R2090.5
6573.0190149.022
80 88.9210
60.326.358.740.819.5
68.286.35
8.74 10.821.030 | | tt | 5
52.562. 0
R26|127.0|101.607.9211.910.825.5|38|100|62.5M20
11878.090.521
M20R31146.0123.827.9211.910.829.043 Nominal steel pipe
GB/T9117.4—2000
Table 3PV11.0MPa(110 bar) Ring connection surface with neck socket welding steel pipe flange connection size
bolt hole
center circle
number of random diameters
nominal steel pipe
outer diameter
groove number JminbZxz.net
sealing surface
flange flange
M14 R111 51.0
34.115.567.14
M16R13
M16R16
70.050.80
M16R18
79.560.326.35||tt| |M20R20
90.568.28
M16R23108.082.55
8M20R26127.0101.607.92
8.740.8116.0
11. 910, 8
M20R31146.0123.827.9211.910.817.5
Table 4PN15.0MPa (150bar) ring connection surface with neck socket welding steel pipe flange connection size
bolt hole
5060.3215
80: 88.9
Center circle
Sealing surface
60.539.676.35
M20R146
66.544.456.35
50.806.35
M24R16
Flange flange
8.740.822.5
8.740.8, 25.5
M24R1881.060.326.358.74
M27R2092.0
68. ​​286. 35
M24R24124.095.25
M27R27
8. 740. 8
11.910.838.5
7.9211.910.841.5
137.0107.95
M24R31l156.0123.827.9211.910.838.5571105
Socket
Socket
62.011713
Nominal, steel pipe
Diameter outer diameter flange
GB/T9117.4--2000
Table 5PN26.0MPa (260bar) ring joint face led socket welding steel pipe flange connection size
bolt hole
center circle
milk diameter number thread
190.529.5
flange flange
M20R1260.539.676.358.74
M20R14l66.5
M24R16
M27R2092.0
50, 80
6. 351 8.74
M24R24|1
124.0|95.25
M27R27137.0107.957.92
11.910.841.5
Socket and socket method
GB/T 9118.19118.2—2000
This standard is a revised version of GB/T9118.1~9118.8—1988 "Butt-welded ring neck loose sleeve steel pipe flange". This standard consists of the following two parts:
GB/T9118.1-2000 Raised face welded ring neck loose steel pipe flange GB/T9118.2~-2000 Ring connection face welded ring neck loose steel pipe flange This standard is based on the reference to IS07005-1:1992 "Metal flanges Part 1: Steel flanges" and other international and foreign advanced standards, combined with domestic use, the original standard has been modified as follows: 1. The original standard has been greatly adjusted. From the original one flange type, one sealing surface type and one pressure level to form one standard, it has been changed to one flange type, one sealing surface type and all pressure levels to form one standard, thus compressing the original 8 standards into 2
2. The pressure levels in the original standard have been appropriately adjusted. The pressure levels PN10.0 and PN25.0MPa belonging to the American system are adjusted to PN11.0 and 26.0MPa respectively according to IS07005-1:1992. The purpose of the adjustment is to avoid confusion with the flange dimensions of the corresponding pressure level of the European flange system.
3 Some dimensions in the original standard, such as bolt specifications, bolt hole diameters, sealing surface diameters, etc., have been appropriately modified according to ISO7005-1:1992.
4 The sealing surface "convex surface" in the original standard has been changed to "raised surface". The PN2.0, PN5.0, PN11.0, PN15.0, PN26.0 and PN42.0MPa flange dimensions in the wooden standard belong to the American flange system, and these flange dimensions are interchangeable with the flange dimensions of the corresponding pressure level in America. The PN2.0.PN5.0, PN11.0.PV15.0, PN26.0 and PN42.0MPa flange dimensions in this standard are equivalent to the flange dimensions of ISO 7005-1:1992.
The writing format of this standard is different from that of ISO7005-1:1992. The reason for adopting the current writing format is mainly to consider the convenience of use and the inheritance in the implementation of the standard.
This standard will replace GB/T9118.1~9118.8-1988 from the month of implementation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Pipeline Accessories. The drafting units of this standard are: Mechanical Science Research Institute, National Chemical Equipment Design Technology Center, Wuxi Petrochemical General Parts Factory, Zhejiang Chaoda Valve Co., Ltd., Tianjin Jinding Pipeline Co., Ltd. The main drafters of this standard are: Li Junying, Yu Jun, Li Renxing, Qiu Xiaolai, Min Zhiqing. This standard was first issued in 1988 and revised for the first time in 2000. 179
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