Flange standard:
GB GB/T9115-2000, Machinery Department Standard JB82-94, Ministry of Chemical Industry Standard HGJ50～53-91 HG20595-97HG20617-97, Ministry of Power Standard GD0508～0509, American Standard ASME/ANSI B16.5, Japanese Standard JIS/KS ( 5K, 10K, 16K, 20K), German standard DIN.
There are several ways to classify flanges:
1. According to the processing method, according to the material and material of the product, according to the production standard, according to the connection method, according to product specifications and so on. The specific situation is specifically classified.
2, flange material: 20 #, A105, Q235A, 12Cr1MoV, 16MnR, 15CrMo, 18-8, 321, 304, 304L, 316, 316L and so on.
American Standard Series American Standard Series
Standard size range pressure level
ANSI B 16.5(88)1/2"-24"Class 150, 300, 600, 900, 1500, 2500
ANSI B 16.47(90)26"-60" Class 150, 300, 600, 900
ASME B 16.5(96)1/2"-24"Class 150, 300, 600, 900, 1500, 2500
ISO7005-1(92)1/2"-24"PN2.0 5.0 11.0 15.0 26.0 42.0
BS4504-3.1(89)1/2"-24"Class 150, 300, 600, 900, 1500, 2500
JPI 7S-15-931/2"-24" Class 150, 300, 600, 900, 1500, 2500
NF E29-2031/2"-24"PN2.0 5.0 11.0 15.0 26.0 42.0
API605-8126"-60" Class 150, 300, 600
ASME B 16.36 (96) 1"-24" Class 300, 400, 600, 900, 1500, 2500
German standard series German Standard Series
Standard size range pressure level
DIN 2630 WNDN1200-DN24001 Bar
DIN 2631 WNDN10-DN36006 Bar
DIN 2632 WNDN200-DN300010 Bar
DIN 2633 WNDN10-DN200016 Bar
DIN 2634 WNDN200-DN100025 Bar
DIN 2635 WNDN10-DN50040 Bar
DIN 2636 WNDN10-DN40064 Bar
DIN 2637 WNDN10-DN350100 Bar
DIN 2638 WNDN10-DN300160 Bar
DIN 2573 PLDN10-DN5006 Bar
DIN 2576 PLDN10-DN50010 Bar
DIN 2527 PLDN10-DN5006 10 16 25 40 Bar
DIN 2501 WNDN15-DN50010 16 25 40 63 100 160 250 320 400 Bar
DIN 2566 THDN15-DN50010 16 Bar
DIN 2655 PLDN15-DN5000.25 0.6 1.0 1.6 2.5 4.0 Bar
DIN 2656 PLDN15-DN5000.25 0.6 1.0 1.6 2.5 4.0 Bar
Japanese Standard Series Japanese Standard Series
Standard size range pressure level
JIS B 2220 PLDN10-DN4005K
JIS B 2220 SODN450-DN10005K
JIS B 2220 PLDN10-DN22510K
JIS 2220 SODN250-DN100010K
JIS 2220 SODN10-DN120016K 20K 30K
JIS 2220 WNDN15-DN40030K
National Standard Series National Standard Series
Standard size range pressure level
GB/T 9112-9113.4-2000DN10-DN2000PN 0.25 0.6 1.0 2.5 4.0 6.3 10.0 16.0 Mpa
JB/T 74-86.2-94DN10-DN1600PN 0.25 0.6 1.0 2.5 4.0 6.3 10.0 16.0 20.0 Mpa
HG 20592-20626-97DN10-DN2000PN 0.25 0.6 1.0 2.0 2.5 4.0 5.0 6.3 10.0 11.0
15.016.0 25.0 26.0 42.0 Mpa
SH 3406-96DN10-DN1500PN 1.0 2.0 5.0 6.8 10.0 15.0 25.0 42.0 Mpa
GB/T 17241.1-17241.7DN10-DN4000PN 0.25 0.6 1.0 1.6 2.0 2.5 4.0 5.0 Mpa
GB/T 15530.1-15530.8DN10-DN1800PN 0.6 1.0 1.6 2.0 2.5 4.0 5.0 Mpa
Power Ministry Series Power Ministry Series
Standard size range pressure level
D-GD86-0510-0537DN15-DN2000PN 0.25 0.6 1.0 1.6 2.5 4.0 6.4 10.0 Mpa
DG0511-0541DN15-DN1000PN 0.25 0.6 1.0 1.6 2.5 4.0 6.4 10.0 20.0 32.0 Mpa
Pressure Vessel Series Pressure Vessel Series
Standard size range pressure level
JB/T 4701-2000 (Type A) DN300-DN2000PN 0.25 0.6 1.0 1.6 10.0 Mpa
JB/T 4702-2000 (Type B) DN300-DN3000PN 0.25 0.6 1.0 1.6 2.5 4.0 Mpa
JB/T 4703-2000 (long neck) DN300-DN2000PN 0.6 1.0 1.6 2.5 4.0 6.4 Mpa
Marine Series Shipping Series
Standard size range pressure level
GB573-581-76DN20-DN500PN 0.6 1.0 1.6 2.5 4.0 6.4 Mpa
GB2506-2507-89DN10-DN2000PN 0.25 0.6 1.0 1.6 2.5 Mpa
GB4450-84DN20-DN500PN 0.6 1.0 1.6 Mpa
GB10746-10749-89DN10-DN600PN 0.6 1.0 1.6 2.5 4.0 6.4 Mpa
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