This standard specifies the type, size, technical requirements and relevant use regulations of socket welding steel pipe flanges (European system). This standard is applicable to socket welding steel pipes with nominal pressure PN 1.0 MPa (10 bar)-10.0 MPa (l00 bar). The socket welding flanges specified in this standard are applicable to the two steel pipe outer diameter series A and 11 specified in HG 20592. HG 20597-1997 Socket welding steel pipe flanges (European system) HG20597-1997 standard download decompression password: www.bzxz.net

Socket welding steel pipe flange
(European system)
HG 2059797
1. Subject content and scope of application
This standard specifies the type, size, technical requirements and relevant use regulations of socket welding steel pipe flange (European system). This standard is only applicable to socket welding steel pipe flanges with nominal pressure PN1.0MPa<1obar~l0.0MPa(1oobar). The socket welding flanges specified in this standard are applicable to the two steel pipe outer diameter series A and B specified in HG20592. 7
HG20592
HG20603
HG20604
IIG20605
HG20613
HG20614
Cited standards
Types and parameters of steel pipe flanges (European system)) Technical conditions for steel pipe flanges (European system)" "Pressure-temperature grades of steel pipe flanges (European system)" "Dimensions of welded joints and grooves of steel flanges (European system)" "Fasteners for steel pipe flanges (European system)" "Provisions for the selection of gaskets and fasteners for steel pipe flanges (European system)" 3 Flange sealing surface types and applicable scope
3.0.1 The sealing surface types of flanges include raised face (RF), concave-convex face (MFM), and grooved face (TG). Its size and selection shall comply with the provisions of Chapter 6 and Chapter 8 of HG20592.
The sealing surface size f of the raised face, concave and convex face and bottle face flanges shall be within the thickness of the flange ℃. 3.0.2 The applicable pressure and diameter ranges of flanges with various sealing surface types shall comply with the provisions of Table 3.0.2. 3.02
Applicable rangebzxZ.net
Sealing surface type
Raised face (RF)
Flange face (MFM)
Grooved face (TG)
Nominal pressurePNMPa(har)
DNI0~50
UN10~-50
DN10--50
4 Flange size
The flange size shall comply with Figure 4-1 and Table 41～6 Specifications Table 41PN1.CMPa (1obar) Socket welding steel pipe flange Table 4-2PN).6MPa (1Gbar) Socket welding steel pipe flange PN2.5MPa (25har) Socket welding steel pipe flange Table 4-3
PV4.0MPa (4(har) Socket welding steel pipe flange Table 4-4H
Table 4-5PN6.3MPa (63bar) Socket welding steel pipe flange Flange table 4-6
PN10.0MPa(100bar)socket welding steel pipe cover76
Figure 4-1socket welding steel pipe flange (SW)
Steel pipe outer diameter
Nominal steel pipe outer diameter
Distance,
Table 41P1.0MPa10bar)socket welding steel pipe flange connection size
Flange screw picking hole center screw gun hole screw inspection hole
Outer diameter center Circle diameter
Table 4-2
Selection scale
Flange Flange inner diameter
Bearing hole
PN1.MPa(16bar)Socket welding steel pipe flange method
Flange bolt bolt hole bolt hole dry grain
Center circle diameter
Flange internal inspection
Bearing hole
PN2.5MPa(2Sbar)Socket welding steel pipe flangeTable 4-3
Nominal: Steel pipe outer diameter
Connection size
Method "operating hole A screw wheel hole wipe inspection hole thread thickness Pu diameter
Outer diameter center circle diameter
Flange inner diameter
Flange collar
17:84
Volcane principle
High theory quantity
Flange collar cooked flange
Flange principle
Theory weight
16!70
17: 84
Flange
Flange principle
Outer diameter of steel pipe
Outer weight of steel pipe
Public administration: Outer diameter of steel pipe
PN4.UMIPa(40har)Socket welding steel pipe flange connection size
Flange bolt hole bolt hole thread
Center circle diameter
Method "inner diameter
Capsule 45PN6.3MPa(63har)Socket welding steel pipe flange steam delivery inner diameter
Connection size
Butterfly bolt hole bolt thread diameter outer center circle diameter
PN10.0MPa(10bar)Socket welding steel pipe flange Table 4-: 6
Connection size
Honglanwolan inner diameter
Method "screw price hole state screw inspection hole screw hole safety original outer diameter heart medical diameter
Diameter:
Head flange method wire flange Tan
Commercial degree theory Asia whole
Method "town
High standard pipe
" neck method benefit head flange type
Height theory reform
Technical requirements
The technical requirements of flanges shall comply with the provisions of HG20603, the maximum non-impact working pressure
The nominal pressure of the flange and the maximum impact working force at different temperatures shall comply with the provisions of HG20604. 7 Welding joints and grooves
The welding joints and groove dimensions of flanges and steel pipes shall comply with the provisions of HG20605. Fastener length
The length of the fasteners (bolts, studs) used 1 Refer to the provisions of Appendix A of HC20613 9
Option provisions
The matching of flanges, gaskets and fasteners shall comply with the provisions of HC20614. 10 Marking
The marking of flanges shall comply with the provisions of HG20592.
Additional notes: Proposal unit, editor unit and main drafter of this standard Proposal unit: Equipment Design Technology Center Station of Ministry of Chemical Industry Chemical Process Piping Design Technology Center Station of Ministry of Chemical Industry Editor unit: Equipment Design Technology Center Station of Ministry of Chemical Industry Main drafter: Ying Daoyanjun
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