This standard specifies the type, size, technical requirements and relevant use regulations of the butt-welded steel pipe flange (European system). This standard applies to the butt-welded steel pipe flange with nominal pressure PN 1.0 MPa (10 bar)-25.0 MPa (250 bar). The butt-welded steel pipe flange specified in this standard is applicable to the two steel frame outer diameter series A and R specified in HG 20592. HG 20595-1997 butt-welded steel pipe flange (European system) HG20595-1997 standard download decompression password: www.bzxz.net

Neck-welded steel pipe flanges
(European system)
G2059597
1 Specifications
This standard specifies the style, size, technical requirements and differential use specifications of the European system of neck-welded steel pipe flanges. This standard is applicable to lock-welded steel flanges with nominal pressures of PN1.0MPax10bar)~25.0MFa250az. The butt-weld neck flanges specified in this standard are applicable to the two light steel pipe series A and B specified in 20592: 45
HG20592
HG20603
HG 20604
HG20605
HG 20613
HG20614
References
"Steel Pipe Flange Type Parameters (European System)" "Steel Pipe Flange Technical Specifications (European System)" "Steel Pipe Flange Pressure-Temperature Grade European System" "Steel Pipe Flange Welding Joint and Mouth Dimensions (European System)" "Steel Pipe Flange Components (European System)" "Steel Pipe Flange, Gasket, and Fitting Selection Provisions (European System)" 3. 3.0.1 The sealing types of flanges include raised face (RF), raised face (MFM), grooved face (TG), flat face (FF), and ring joint face (RJ). Their sizes and selections shall comply with the provisions of Chapter 6 and Chapter 8 of HG20592. The sealing surface dimensions of raised face, four-convex and grooved face flanges are included in the flange thickness C. The height E of the ring joint face flange is included in the flange thickness. 3.0.2. The pressure and diameter ranges applicable to various flange types shall comply with the provisions of Table 3.0.2. (r)
Male, Mpabn）
Old cover type
Raised face (F)
Four-point fungus (MFM)
Coconut dregs surface TG
Full plane (FF)
Ring connection surface (RI)
DN10-~2000
DN10-600
EN0~600
DN19--2000
（63)
DN10~-400
DN10~400
DN10-:400
DNi5400
4 French blue ruler
Flange dimensions refer to Figure 4~1 and Table 4-1~8 Regulations: Table 4-1 PN1.0MPa (10bar) butt-welded steel pipe flange with neck Table 4-2.PN1.6MPa (16bar) butt-welded steel pipe flange with neck Table 4-3: PN2.5MPa (25bar) butt-welded steel pipe flange with neck Table 4-4: FN4.0MPa (4obar butt-welded steel pipe flange Table 4-5 FNe.3MPa163bar butt-welded steel pipe flange Table 4-6 PN10.0MPa6100bar butt-welded steel pipe flange Table 4-7 PN16.0MPa160bar butt-welded steel pipe flange Table 4-8 PN25.0Fg (2506ar) butt-welded steel pipe flange Flange neck thickness S is generally not less than The nominal thickness of the steel pipe is determined by the user. The values ​​of S listed in Table 4-18 of this standard are only used in applications where the user requires the product. When the user selects a different S value from that in Tables 41-8, it should be noted in the details and markings. 48
Metal plane
Ring joint surface
Figure 4-1 Physical properties of steel pipe (WN)
Outer diameter of steel pipe
[(Outer diameter of blue welding end]
Avoided diameter!
76, 1
, 9
10001016
12001219
1800|1829
PN1.0MPa (10kaF) Steel flange with neck 4-
Connection size
Screw diameter
Center diameter
720-895
12201455
14291675
162011915
1820|2115
20322020
Screw hole bolt hole
Top:
M33×2
M45×3
Flange neck
Flange structure
Reference
Outer diameter of steel pipe
Through diameter (outer diameter of flange port)
.17..2
Table 4 --2 PNI.6M poly g-(16btr) sugar strong butt welding special pipe legal benefit connection size
screw inspection ritual bolt hole screw inspection
center circle diameter
chang 4 home
1422|1420
18202130
2032202023451wwW.bzxz.Net
M45×3
M52×4
M52 ×4
M56×4
Flange neck
(color)
method
weight
outer diameter of steel pipe
(outer diameter of flange welding end)
installation 4-3, PN2.5Pa25h*r) connection size
bolt hole
inspection screw inspection hole
4806 70
10161030
Center circle diameter
M30×2
M45×3
M52×4
Flange neck
Flange theoretical weight
(kg）
Outer diameter of steel pipe
(Outer diameter of flange end)
Table 4--4PN4-OMPa(4 0hr) Strong butt welding steel pipe flange quick connection size
bolt hole center screw inspection hole bolt hole
core group diameter
quantity 33×2
JM39xs
flange neck
flange theory
theoretical weight
vehicle outer diameter
(flange welding mite outer diameter)
3.50355.6
table 4-5 PNb. 3MIPa63b) pipe connection size with neck
bolt hole center
screw hole
center diameter
flange neck
flange diameter
outer diameter of steel pipe
(outer diameter of flange end)
Table 4--6PN10.0MPa(100baF) pipe connection size with neck
screw Bolt hole screw inspection hole bolt hole
center circle diameter
Flange neck
weight
outer diameter of steel pipe
PN15.OMPa (160bar) butt-welded steel pipe with neck cover Xi 4-
connection size
bolt hole screw inspection hole bolt nipple
【6 flange outer diameter
center circle diameter
150168. 3
20g219,1
300.323.9
Outer diameter of steel pipe
Distance diameter (outer diameter of flange end
M30×2
Nt33x2
Flannel
FN, 0M(250 plus) with moisture butt welding pipe flange 4-8
Comply with the anti-inch
Explosion bolt bolt hole
Diameter of center circle
[M33×2
M39×3
M45×3
Flange neck
Flange principle
On weight
Flange principle
On drawing villa
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