This standard specifies the types and dimensions of copper alloy flat-neck welding flanges with nominal pressure PN of 0.6, 1.0, 1.6, 2.5 and 2.0, 5.0 MPa. This standard applies to copper alloy flat-neck welding flanges with nominal pressure PN of 0.6~5.0 MPa and nominal diameter DN10~800 mm. GB/T 15530.4-1995 Copper alloy flat-neck welding flanges GB/T15530.4-1995 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Copper alloy hubbed slip-on flanges for brazing or welding
Subject content and scope of application
GB/T 15530.4-1995
This standard specifies the types and dimensions of copper alloy hubbed slip-on flanges with nominal pressure PN of 0.6, 1.0, 1.6, 2.5 and 2.0.5.0MPa.
This standard applies to copper alloy hubbed slip-on flanges with nominal pressure PN0.6~5.0MPa and nominal diameter DN10~800mm. 2 Reference standards
GB/T15530.8 Technical conditions for copper alloy and composite flanges 3 The types and dimensions of flanges shall comply with the provisions of the following figure and Tables 1 to 6. D
4 The technical requirements of flanges shall comply with the provisions of GB/T15530.8. 5 The nominal pressure of the flange and the maximum non-impact working pressure at different temperatures shall comply with the provisions of Appendix A of GB/T15530.8. 6 Marking example
Copper alloy neck flat welding flange with nominal diameter of 300mm and nominal pressure of 1.0MPa (10bar): Flange 300-10GB/T15530.4
Approved by the State Administration of Technical Supervision on April 2, 1995 and implemented on January 1, 1996
Nominal diameter Pipe outer diameter
Flange outer diameter
15, 16
18, 20|| tt||22, 25
35, 38
GB/T15530.4-—1995
Table 1PN0.6MPa copper alloy flat welding flange dimensionsConnection size
Center circle of bolt hole
Diameter of bolt hole
Flange thicknessFlange height
Number of threads
Inner diameter of flange
Pre-diameter fillet radius
15. 07,16. 07
18. 07.20. 08
22.08,25.08
28.08.30.08
35.09,38.08
142.09.44.6
54.09,57.23
2PN1.0MPa copper alloy flat welding flange size table 2
Connection size
Nominal diameter pipe outer diameter
Screw Bolt hole center circle
Bolt hole diameter
Flange outer diameter
15, 16
18, 20
22, 25
28, 30
42, 44.5
Flange thicknessFlange height
Number of threads
Flange inner diameter
Neck diameterFillet radius
15.07,16. 07
18.07.20.08
22. 08, 25. 08
28. 08,30. 08
35.09,38.08
42. 09,44. 6
GB/T15530.4---1995
Continued Table 2
Connection size
Nominal diameterPipe outer diameter
Center circle of bolt hole
Flange outer diameter
54, 57
Nominal diameter
Pipe outer diameter
15, 16
22, 25
28, 30
42, 44.5
54, 57
Flange thicknessFlange height
Bolt hole diameter
Quantity Thread
Flange inner diameter
Neck diameter fillet radius
54.09, 57.23
Table 3PN1.6MPa copper alloy flat welding flange dimensions Connection dimensions
Bolt hole center circle
Bolt hole diameter
Flange outer diameter
Flange thickness Flange height
Quantity Thread
Flange inner diameter
Neck diameter fillet radius
15.07,16.07
18.07.20.08
22. 08, 25. 08
28.08, 30.08
35.09, 38.08
42.09.44.6
54.09, 57.23
GB/T 15530.4-- 1995
Continued Table 3
Connection size
Pipe outer diameter
Nominal diameter
Center circle of bolt hole
Bolt hole diameter
Flange outer diameter
Nominal diameterPipe outer diameter
15, 16
22, 25
35, 38
42, 44.5
54, 57
Flange outer diameter
Flange thicknessFlange height Degree
Number of threads
Table 4 PN2.5MPa copper alloy flat welding flange dimensions Connection dimensions
Center circle of bolt hole
Diameter of bolt hole
Thickness of bolt flange Flange height
Number of threads
Inner diameter of flange
Inner diameter of flange
15.07.16.07
Radius of fillet of neck diameter
Radius of fillet of neck diameter
18.07, 20. 08
22.08.25.08
28.08.30.08
35.09、38.08
142.09、44.6
54.09、57.23
Nominal diameter pipe outer diameter
Nominal diameter
GB/T 15530.4—1995
Table 5 PN2.0MPa copper alloy flat welding flange dimensions Connection dimensions
Center circle of bolt hole
Flange outer diameter
Bolt hole diameter
Flange thickness
Flange height
PN5.0MPa copper alloy flat welding flange dimensions Connection dimensions
Tube outer diameter
Center circle of bolt hole
Bolt hole diameter
Flange outer diameter
Flange thickness
Flange height
Flange inner diameter
Flange inner diameter
Neck diameter
Neck diameter
Nominal diameter pipe outer diameter
GB/T 15530.4—1995
Continued Table 6
Connection dimensions
Center circle of bolt hole
Outer diameter of flange
Diameter of bolt hole
Note: The dimensions of fillet radius R are not listed in Tables 5 and 6, which can be determined by the manufacturer. Additional remarks:wwW.bzxz.Net
This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the Machinery Standardization Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Machinery Standardization Research Institute of the Ministry of Machinery Industry. The main drafter of this standard is Li Junying.
Flange thickness Flange height
Inner diameter of flange
Neck diameter
Ninuax
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