This standard specifies the types and dimensions of ring-joint integral steel pipe flanges with nominal pressures of PN 2.0, 5.0, 11.0, 15.0, 26.0 and 42.0 MPa. This standard applies to ring-joint integral steel pipe flanges with nominal pressures of PN 2.0 to PN 42.0 MPa. GB/T 9113.4-2000 Ring-joint integral steel pipe flanges GB/T9113.4-2000 Standard download decompression password: www.bzxz.net

1 Scope
National Standard of the People's Republic of China
Integral steel pipe flanges
with ring-joint face
GB/T 9113.4--2000
Replaces GB/T9113.21~9113.261988
This standard specifies the types and dimensions of integral steel pipe flanges with ring-joint face with nominal pressure PN of 2.0, 5.0, 11.0, 15.0, 26.0 and 42.0MPa.
This standard is applicable to integral steel pipe flanges with ring-joint face with nominal pressure PN2.0~～PN42.0MPa. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard is revised, the versions shown are all valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest version 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, PN26.0 and PN42.0MPa The type of the integral steel pipe flange with annular connection surface shall comply with the provisions of Figure 1, and the size shall comply with the provisions of Tables 1 to 6. 4 Technical requirements for flanges bzxz.net
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/T91242000.
Approved by the State Administration of Quality and Technical Supervision on September 28, 2000 48
Implemented on July 1, 2001
GB/T9113.4—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. A full-plane type with a profile as shown by the dotted line is allowed. Figure 1 Ring joint (RJ) integral steel pipe flange (applicable to PN2.0, PN5.0, PN11.0, PN15.0, PN26.0 and PN42.0MPa) 49
600815
3009775
600915
Connection size
Bolt hole
Center circle
Connection size
Bolt hole
Center circle
GB/T 9113. 4--2000
Table 1PN2.0MPa (20bar) ring connection surface integral steel pipe flange sealing surface
M33R76
PN5.0MPa (50bar) ring connection surface integral steel pipe flange sealing surface
7.9211.91
9.5213.49
11.1316. 66
Flange neck
Distance between two flanges
Approximate value
Flange neck
Two flanges
Simple distance
Approximate value
GB/T 9113. 4.--2000
Table 3PN11.0MPa (110bar) bad connection surface integral steel pipe flange connection size
bolt hole
center circle
connection size
bolt hole
center circle
6001040
sealing surface
PN15.0MPa (150bar) ring connection surface integral steel pipe flange sealing surface
thread groove number
use PN26.0MPa flange size
12.7019.84
15.8826.971
two flanges
distance between
approximate value
two flanges| |tt||Distance between
Approximate value
Connection size
Bolt hole
Center circle
GB/T9113.4—2000
PN26.0MPa (260bar) Ring connection surface Integral steel pipe flange sealing surface
Connection size
Bolt hole
Center circle
20.6236.53
PN42.0MPa (420bar) Ring connection surface Integral steel pipe flange sealing surface
17.4833.32
Distance between two flanges
Approximate value
Distance between two flanges
Approximate value
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