HG 20601-1997 Steel pipe flange cover (European system)
Basic Information
Standard ID:
HG 20601-1997
Standard Name: Steel pipe flange cover (European system)
Chinese Name:
钢制管法兰盖(欧洲体系)
Standard category:Chemical industry standards (HG)
state:Abolished
Date of Release1997-11-27
Date of Implementation:1998-02-01
Date of Expiration:2009-07-01
standard classification number
Standard ICS number:Fluid systems and general parts>>Pipeline components and pipelines>>23.040.60 Flanges, pipe joints and their connectors
Standard Classification Number:Machinery>>General Parts>>J15 Pipe Accessories
Publication information
other information
drafter:Ying Daoyan, Yu Jun
Drafting unit:Equipment Design Technology Center of the Ministry of Chemical Industry
Proposing unit:Chemical Industry Department Equipment Design Technology Center, Chemical Industry Department Chemical Process Piping Design Technology Center
Publishing department:Ministry of Chemical Industry of the People's Republic of China
Introduction to standards:
This standard specifies the type, size, technical requirements and relevant use regulations of steel pipe flange covers (European system). This standard is applicable to steel pipe flange covers with nominal pressure PN0.25 MPa (2.5 bar)-25.0 MPa (2506 ar). HG 20601-1997 Steel pipe flange covers (European system) HG20601-1997 Standard download decompression password: www.bzxz.net
Some standard content:
Steel pipe flange cover
(European system)
HG20601-97
1. Subject content and scope of application
This standard specifies the type, size, technical requirements and use regulations of a pipe flange cover (European system). This standard is applicable to steel pipe flange covers with nominal pressure PN0.25MPa (2.5bar) ~ 25.0MPa (250bar) 111
HG20592
HO20603
HG 20601
HG 20613
HG 20614
2 Reference standards
《Types and parameters of steel pipe flanges (European system)》《Technical conditions for steel pipe flanges (European system)》《Positive temperature grades of steel pipe flanges (European system)》《Fasteners for steel pipe flanges (European system)》《Selection regulations for steel pipe flanges, gaskets and fasteners (European system)》3 Types and scope of application of flange cover sealing surface
3.0.1 The sealing surface types of flange covers are raised face (RF), grooved face (MFM), grooved face (TG), full plane (FF) and ring joint face (RJ). The size and selection shall be in accordance with the provisions of Chapter 6 and Chapter 8 of HG20592. The sealing surface center size and f of the raised, grooved and grating flange covers are included in the flange thickness C. The height E of the boss of the ring-connected threaded cover is not included in the flange thickness. 3.0.2 The applicable pressure and diameter ranges of flange covers of various sealing surface types shall be in accordance with the provisions of Table 3.0.2. Table 3.0.2 Applicable range
Sample surface
Bad car connection surface
DN10~ 2000wwW.bzxz.Net
EN10-.6CO
Nominal pressure PN, MFa(bar)
DN10~-J200
DN10-～600
DN10--60?
DN10G00
DX10-~120G
IN10~-400
DN1C~400
DN10~-400
DN15~-400
DN10.~300
INIO~-
DN15～300
Dimensions of flange cover
The dimensions of flange cover shall be in accordance with the requirements of Figure 4--1 and Table 4—1-10. Table 41P No.25MPa (2.5bar) Steel Fence Flange CoverTable 4-2PVo.6MPa (6bar) Steel Pipe Flange CoverTable 43PN1.UMPa (10b8r) Steel Pipe Flange CoverTable 44PN1.6MPa (16bar) Steel Pipe Flange CoverTable 4.5PN2.5MPa (25bar) Steel Pipe Flange CoverTable 4-6PN4.0MPa (40bar) Steel Pipe Flange CoverTable 4-7PN6.3MPa (63bar) Steel Pipe Flange CoverTable 48PV10.0MPa (100har) Steel Pipe Flange CoverTable 4-9PV16. 0MPa (160bar) steel pipe flange cover Table 4·10PN 25.0MPa (250bar) steel pipe flange cover 114
Full plane
Ring connection surface
Figure 4-1 Steel pipe flange cover (HI,)
Flange cover
Table 4-1
PN (l.25MPa (2.5har) Steel flange cover connection size
Bolting hole center
Network diameter| |tt||Bolt hole
Screw gun hole
Flange cover
Theoretical weight
Table 4-2PNO.6MP (6har) steel pipe flange connection size
Bolt hole
Bolt hole
Bolt hole
M36×3
Flange cover
Flannel cover
Theoretical weight
Flange benefit
Table 4-3
Bolt hole
True diameter of center circle
PN1. (MPa(1Obar)Steel pipe flange cover connection size
Bolt hole
Bolt hole
Flange cover
Flange cover
Theoretical indication
Flange
Degradation 44PNI.6MPa(16bar)Steel pipe flange cover connection size
Screw hole center
Center circle diameter
Bolt hole|| tt||Bolt hole
M30×2
M33×2
M45×3
Flange cover
Natural flange
Theoretical weight
Flange cover
PN2-5MIPa (25bB) Pipe making method
Connection size
Bolt hole
Core diameter
Table 4 — 6
Bolt hole center
Center circle diameter
Bolt hole
Bolt hole
M33×2
PN4.DMPa(40ber)Steel pipe flange
Connection size
Bolt hole
Screw hole
M15×3
Flange cover
Flange cover
Flange benefit
Theoretical weight
Theoretical weight
Flange cover
Method benefit
Bolt hole center
Center circle diameter
Table 4—8
Selection hole center
Center circle diameter| |tt||PNa.3MPa (63bar) Steel pipe flange connection size
Bolt hole
Bolt hole
M33×2
M36×3
PNI.OMPa (T00xar) Steel pipe flange connection size
Bolt at
M30×2
M45×3
M45×3
Flange cover
Flange cover
Flange cover
Buried weight belt
Blue blue
Theoretical weight single
Flange
Light thread cover
Table 49PN16. 0MP (160lar) Steel pipe flange cover connection ruler
bolt hole center diameter
bolt hole
bolt cover hole
M30×2
M30×2
M33×2
M39×3
PN25.MPa (250bar) Steel pipe flange cover table 4-10
reverse ruler
bolt hole center diameter
bolt hole
bolt hole
M30×2
M30×2
M45×3
method "yield
flange
flange cover
theoretical weight
theoretical weight
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