HG 20596-1997 Integral steel pipe flange (European system)

This standard specifies the type, size, technical requirements and relevant use regulations of integral steel pipe flanges (European system). This standard applies to integral steel pipe flanges with nominal pressure PN 0.6 MPa (6 bar) -25.0 MPa (250 bar). HG 20596-1997 Integral Steel Pipe Flange (European System) HG20596-1997 Standard download decompression password: www.bzxz.net

Integral steel pipe flange
(European system)
HG 20596-97
Subject content and scope of application
This standard specifies the type, size, technical requirements and relevant use regulations of integral steel pipe flange (European system). This standard applies to integral steel pipe flanges with nominal pressure PN0.6MPa (6bar) ~~25.0MPa (25Ubar). 59
HG 20592
HG 20603
HG 20604
HG 20613
HG 20614
2 Reference standards
《Steel pipe flange type parameters (European system)》《Steel pipe flange technical conditions (European system)》《Steel pipe flange pressure-temperature grade (European system)》《Steel pipe flange fasteners (European system)》《Steel pipe flange, gasket, fastener selection regulations (European system)\3 Flange sealing surface type and application scope
3.0.1 The sealing surface types of flanges include raised face (RF), raised face (M FM), grooved face (TG), ring joint face (RJ), full plane (FF). The size and selection shall be in accordance with the provisions of Chapter 6 and Section 8 of IIG20592. The sealing dimensions f and f of raised face, raised face and grooved face flanges are included in the flange thickness. The boss height E of the ring joint face flange is not included in the flange thickness C. The applicable pressure and diameter range of various sealing face flanges shall be in accordance with the provisions of Table 3.0.2. 3.0.23
Day range
Table 3.0.2 Applicable
Sealing surface type
Flange (RF)
Flange MFM)
Flange (TG)
Flat surface (FF)
Ring connection surface (RI)
N10~2000
DN10-~
Nominal pressure PN.MPathar)
IDN19--6:0
DN10--600||tt| |DN1(--2000
DN10-~
N10-400
DN10～ACO
DN10-400
DN15～45D
DNI-3\
DNiG--
DN15~300
Flange sizeWww.bzxZ.net
The flange size shall be in accordance with the provisions of Figure 4-1 and Tables 1-1 to 9. Table 4-!PNo .6MPa (6bar) integral steel pipe flange PV1.MPa (1Obar) integral steel pipe flange Table 4-2
PN1.6MPa (16bar) integral steel pipe flange Table 4-31
Table 4-5
PN2.5MPa (25har) integral steel flange PN4.0MPa (40bar) integral pipe flange
PN6.3MPa (63bar) integral steel Pipe flange table 46
PN10.0MPa(100bar)integral steel pipe flangePN16.UMPa(1G0bar)integral steel pipe flange table 4-8
Table 49PN25.0MPa（250bar）integral steel pipe flange 62
Full plane
Ring connection surface
Dimension 1:
Figure 4-"Integral steel pipe flange (IF)
Table 4-1
Connection size
Bolt center diameter
Drain hole
PN0.6MPa(6bar)integral steel pipe flange
Flange neck
Table 42:PN1.MPa(10bar)integral steel pipe flange connection size
Screw hole,
Center diameter
Screw hole
M3C×2
M45×3
Table 4— 3
PN1+6MP16bar) integral steel pipe flange connection size
Bolt center
Center circle diameter
Bolt hole
Bolt hole:
M36×3
M39×3
M45×3
M45×3
M52X4i
M56×4
Thread neck
Table 4-4PN2.5MP (25bar) integral steel pipe flange connection size Small
Bolt hole center
Center diameter
Screw inspection hole Bolt hole
M30×2
PN4.OMPa (40bar)Integral steel pipe flange table 4-5
Connection size
Screw inspection hole center
Center circle diameter
Bolt hole
Bolt hole
M36×3
M39×3
Flange neck
PN6.3M1Pa (63har)Integral Steel pipe flange table 4-7
Connection size
Bolt hole
Center straightness
Bolt disorder
Bolt hole
Table 4-7
Connection size
Screw center
Center diameter
PN10.0MPa (100har) Integral steel pipe flange
Bolt hole
Bolt hole
M30Xx2
M36×3
M15 ×3
M45×3
Flange neck
Flange neck
Table 4--8PN16.0MPa(160bar)integral steel pipe flange connection dimensions
Bolt hole
Center diameter
Bolt hole
Bolt hole
M30×2
:MIXsi
Table 4.PNZ5.UMPa(250hur)integral steel pipe flange connection dimensions
Bolt hole center
Bolt hole bolt hole
M30×2
M15×3
M48×3
Flange neck
Flange neck
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