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Guoxiang Steel Flanges Forging Inc Address:European Industrial Zone Zhouzhuang Town, Jiangyin, Jiangsu, China

Tel:+86-512-58978781
Fax:+86-512-58978782
Email:andyflange@gmail.com
MSN::zxlzxh@hotmail.com
Contact person:Andy zou

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What is the flanges?

Forging flange standard series

What is the flanges?

Although flange generally refers to the actual raised rim or lip of a fitting, many flanged plumbing fittings are themselves known as 'flanges':

 Surrey FlangeCommon flanges used in plumbing are the Surrey flange or Danzey flange, York flange, Sussex flange and Essex flange. Surrey and York flanges fit to the top of the hot water tank allowing all the water to be taken without disturbance to the tank. They are often used to ensure an even flow of water to showers. An Essex flange requires a hole to be drilled in the side of the tank.

There is also a Warix flange which is the same as a York flange but the shower output is on the top of the flange and the vent on the side. The York and Warix flange have female adapters so that they fit onto a male tank, whereas the Surrey flange connects to a female tank.

A closet flange provides the mount for a toilet.

Forging flange standard series  

American Standard Series

STANDARD CODES NOMINAL SIZE PRESSURE GRADE
                  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-15-93 1/2"-24"    Class 150、300、600、900、1500、2500
                  NF E29-203 1/2"-24"    PN2.0 5.0 11.0 15.0 26.0 42.0
                  API605-81 26"-60"    Class 150、300、600
                  ASME B 16.36(96) 1"-24"    Class 300、400、600、900、1500、2500

 German Standard Series

STANDARD CODES NOMINAL SIZE PRESSURE GRADE
DIN 2630 WN DN1200-DN2400 1 Bar
DIN 2631 WN DN10-DN3600 6 Bar
DIN 2632 WN DN200-DN3000 10 Bar
DIN 2633 WN DN10-DN2000 16 Bar
DIN 2634 WN DN200-DN1000 25 Bar
DIN 2635 WN DN10-DN500 40 Bar
DIN 2636 WN DN10-DN400 64 Bar
DIN 2637 WN DN10-DN350 100 Bar
DIN 2638 WN DN10-DN300 160 Bar
DIN 2573 PL DN10-DN500 6 Bar
DIN 2576 PL DN10-DN500 10 Bar
DIN 2527 PL DN10-DN500 6 10 16 25 40 Bar
DIN 2501 WN DN15-DN500 10 16 25 40 63 100 160 250 320 400 Bar
DIN 2566 TH DN15-DN500 10 16 Bar
DIN 2655 PL DN15-DN500 0.25 0.6 1.0 1.6 2.5 4.0 Bar
DIN 2656 PL DN15-DN500 0.25 0.6 1.0 1.6 2.5 4.0 Bar

 Japanese Standard Series

STANDARD CODES NOMINAL SIZE PRESSURE GRADE
JIS B 2220 PL DN10-DN400 5K
JIS B 2220 SO DN450-DN1000 5K
JIS B 2220 PL DN10-DN225 10K
JIS 2220 SO DN250-DN1000 10K 
JIS 2220 SO DN10-DN1200 16K 20K 30K
JIS 2220 WN DN15-DN400 30K

 National Standard Series

STANDARD CODES NOMINAL SIZE PRESSURE GRADE
GB/T 9112-9113.4-2000 DN10-DN2000 PN 0.25 0.6 1.0 2.5 4.0 6.3 10.0 16.0 Mpa
JB/T 74-86.2-94 DN10-DN1600 PN 0.25 0.6 1.0 2.5 4.0 6.3 10.0 16.0 20.0 Mpa
HG 20592-20626-97 DN10-DN2000

PN 0.25 0.6 1.0 2.0 2.5 4.0 5.0 6.3 10.0 11.0 15.0  16.0 25.0 26.0 42.0 Mpa

SH 3406-96 DN10-DN1500 PN 1.0 2.0 5.0 6.8 10.0 15.0 25.0 42.0 Mpa
GB/T 17241.1-17241.7 DN10-DN4000 PN 0.25 0.6 1.0 1.6 2.0 2.5 4.0 5.0 Mpa
GB/T 15530.1-15530.8 DN10-DN1800 PN 0.6 1.0 1.6 2.0 2.5 4.0 5.0 Mpa

 Power Ministry Series

STANDARD CODES NOMINAL SIZE PRESSURE GRADE
D-GD86-0510-0537 DN15-DN2000 PN 0.25 0.6 1.0 1.6 2.5 4.0 6.4 10.0 Mpa
DG0511-0541 DN15-DN1000 PN 0.25 0.6 1.0 1.6 2.5 4.0 6.4 10.0 20.0 32.0 Mpa

 Pressure Vessel Series

STANDARD CODES NOMINAL SIZE PRESSURE GRADE
JB/T 4701-2000 DN300-DN2000

PN 0.25 0.6 1.0 1.6 10.0 Mpa

JB/T 4702-2000 DN300-DN3000 PN 0.25 0.6 1.0 1.6 2.5 4.0 Mpa
JB/T 4703-2000 DN300-DN2000 PN 0.6 1.0 1.6 2.5 4.0 6.4 Mpa
 Shipping Series
STANDARD CODES NOMINAL SIZE PRESSURE GRADE
GB573-581-76 DN20-DN500 PN 0.6 1.0 1.6 2.5 4.0 6.4 Mpa
GB2506-2507-89 DN10-DN2000 PN 0.25 0.6 1.0 1.6 2.5 Mpa
GB4450-84 DN20-DN500 PN 0.6 1.0 1.6 Mpa
GB10746-10749-89 DN10-DN600 PN 0.6 1.0 1.6 2.5 4.0 6.4 Mpa