GB flange, Chinese Flange, GB flanges
Description of GB flange, Chinese Flange
GB Flange Manufacturer Taurus supplies GB Flanges, Chinese grade flange, which is same to ansi flange and din flange etc. in forged steel, Stainless Steel, Carbon steel etc.
Specification/ Dimension of GB flanges
| 　 | GB9119��8 | GB9119��8 | ||||||||||
| in | NPS | 10kg=1.0MPa | NPS | 16kg=1.6MPa | ||||||||
| OD | Dia of bolts | Holes | Thickness | OD | distance of bolts | Dia of bolts | Holes | Thickness | ||||
| 3/8 | DN10 | 50 | 60 | 14 | 4 | 14 | DN10 | 90 | 60 | 14 | 4 | 14 |
| 1/2 | DN15 | 59 | 65 | 14 | 4 | 14 | DN15 | 95 | 65 | 14 | 4 | 14 |
| 3/4 | DN20 | 105 | 75 | 14 | 4 | 16 | DN20 | 105 | 75 | 14 | 4 | 16 |
| 1 | DN25 | 115 | 85 | 14 | 4 | 16 | DN25 | 115 | 85 | 14 | 4 | 16 |
| 11/4 | DN32 | 140 | 100 | 18 | 4 | 18 | DN32 | 140 | 100 | 18 | 4 | 18 |
| 11/2 | DN40 | 150 | 110 | 18 | 4 | 18 | DN40 | 150 | 110 | 18 | 4 | 18 |
| 2 | DN50 | 165 | 125 | 18 | 4 | 20 | DN50 | 165 | 125 | 18 | 4 | 20 |
| 21/2 | DN65 | 185 | 145 | 18 | 4 | 20 | DN65 | 185 | 145 | 18 | 4 | 20 |
| 3 | DN80 | 200 | 160 | 18 | 8 | 20 | DN80 | 200 | 160 | 18 | 8 | 20 |
| 31/2 | DN100 | 220 | 180 | 18 | 8 | 22 | DN100 | 220 | 180 | 18 | 8 | 22 |
| 4 | DN125 | 250 | 210 | 18 | 8 | 22 | DN125 | 250 | 210 | 18 | 8 | 22 |
| 5 | DN150 | 285 | 240 | 22 | 8 | 24 | DN150 | 285 | 240 | 22 | 8 | 24 |
| 6 | DN200 | 340 | 295 | 22 | 8 | 24 | DN200 | 340 | 295 | 22 | 8 | 26 |
| 8 | DN250 | 395 | 350 | 22 | 12 | 26 | DN250 | 405 | 355 | 26 | 12 | 29 |
| 10 | DN300 | 445 | 400 | 22 | 12 | 28 | DN300 | 460 | 410 | 26 | 12 | 32 |
| 12 | DN350 | 505 | 460 | 22 | 16 | 30 | DN350 | 520 | 470 | 26 | 16 | 35 |
| 14 | DN400 | 565 | 515 | 26 | 16 | 32 | DN400 | 580 | 525 | 30 | 16 | 38 |
| 16 | DN450 | 615 | 565 | 26 | 20 | 35 | DN450 | 640 | 585 | 30 | 20 | 42 |
| 18 | DN500 | 670 | 620 | 26 | 20 | 38 | DN500 | 715 | 650 | 33 | 20 | 46 |
| 20 | DN600 | 780 | 725 | 26 | 20 | 42 | DN600 | 840 | 770 | 36 | 20 | 52 |
Description of GB flanges
GB flange system is Chinese grade flange, this system is made according to ansi flange system and din flange system, include GB/T 9112 - 9113.4 - 2000, DN10-DN2000, GB/T 17241.1 - 17241.7, DN10 - DN4000, GB/T 15530.1 - 15530.8, DN10-DN1800 etc., Pressure grade from PN0.6,1.0,1.6,2.5,4.0,6.4,Mpa
- Type: WN Forged Flange
- Material: Carbon steel: A105,SS400,SF440 RST37.2,S235JRG2,P250GH,C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.
- Standard: GB/T 9112 - 9113.4 - 2000, DN10-DN2000, GB/T 17241.1 - 17241.7,GB573-581-76,GB10746-10749-89
- Size: DN10-DN4000
- Pressure: PN 0.6Mpa, 1.0Mpa, 1.6Mpa, 2.5Mpa, 4.0Mpa, 6.4Mpa
- Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case
- Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
- E-catalogue: Available , please visit catalogue of flange
- Usage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.
