GB/T 9116.3-2000 Tongue and groove flat welded steel pipe flanges with neck

This standard specifies the types and dimensions of tongue-and-groove face flat-welded steel pipe flanges with nominal pressures PN 1.6, 2.5, 4.0 MPa and PN 5.0, 11.0, 15.0, 26.0 MPa. This standard applies to tongue-and-groove face flat-welded steel pipe flanges with nominal pressures PN1.6 to PN26.0 MPa. GB/T 9116.3-2000 Tongue-and-groove face flat-welded steel pipe flanges with nominal pressures PN 1.6 to PN 26.0 MPa. GB/T 9116.3-2000 Tongue-and-groove face flat-welded steel pipe flanges with nominal pressures PN 1.6 to PN 26.0 MPa. GB/T 9116.3-2000 GB/T 9116.3-2000 Standard download decompression password: www.bzxz.net

1 Scope
National Standard of the People's Republic of China
Hubbed slip-on-welding steel pipe flanges with tongue and groove facewww.bzxz.net
GB/T9116.32000
Replaces GB/T 9116.16~~9116.20 1988 This standard specifies the types and dimensions of steel pipe flanges with tongue and groove face with tongue and groove face with nominal pressure PN of 1.6, 2.5, 4.0MPa and PN of 5.0, 11.0, 15.0, 26.0MPa. This standard is applicable to steel pipe flanges with tongue and groove face with tongue and groove face with nominal pressure PN1.6~~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 all valid. All standards will be revised. 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
3.1 The types of PN1.6, PN2.5 and PN4.0 MPa type groove face with neck flat welding steel pipe flanges shall comply with the provisions of Figure 1, and the sizes shall comply with the provisions of Tables 1 to 3.
3.2 The types of PN5.0, PN11.0, PN15.0 and PN26.0 MPa type groove face with neck flat welding steel pipe flanges shall comply with the provisions of Figure 2, and the sizes shall comply with the provisions of Tables 4 to 7. 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 the flange 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 the flange shall comply with the provisions of Appendix B (Suggestive Appendix) of GB/T9124-2000. 5 Marking
5.1 Flanges shall be marked according to the nominal diameter, nominal pressure, sealing surface type code, matching steel pipe series code (the matching metric pipe code is "Series II\, matching British pipe is not marked) and standard number. Marking. 5.2 The type code of the flange sealing surface shall comply with the provisions of GB/T9112. 5.3 Marking example
Narrow face flat welded steel pipe flange with nominal diameter 80mm and nominal pressure 4.0MPa (40bar) (matched with metric pipe): DN80-PN40T (Series 1) GB/T9116.3-2000Narrow face flat welded steel pipe flange with nominal diameter 80mm and nominal pressure 5.0MPa (50bar) (matched with imperial pipe): Flange DN80-PN50G GB/T9116.3-2000Approved by the State Administration of Quality and Technical Supervision on September 28, 2000Implementation on July 1, 2001
GB/T 9116. 3---2000
Figure 1 Groove face (TG) flat welding steel pipe flange with neck (applicable to PN1.6, PN2.5 and PN4.0 MPa)115
GB/T9116.3-2000
GB/T9116.3-2000
GB/T9116.3-2000
GB/T9116.32000
Figure 2 Groove face (TG) flat welding steel pipe flange with neck (applicable to PN5.0, PN11.0, PN15.0 and PN26.0 MPa)19
GB/T 9116.3—2000
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