Xi'an Longjoy Foreign Trade Co.,Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | Annual output 50000 tons |
| Delivery Time | Depends on the quantity of goods |
| Packaging Details | Export standard packaging |
| Product Name: | Ductile iron flange |
| Size: | Full-size |
| Standard: | GB / ANSI /JIS / DIN |
| Material: | Ductile iron |
| Technics: | Stamping and Welding |
| Connection: | Flange |
| Brand Name | Ductile iron flange |
| Model Number | LJ-PF055 |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | Annual output 50000 tons |
| Delivery Time | Depends on the quantity of goods | Packaging Details | Export standard packaging |
| Product Name: | Ductile iron flange | Size: | Full-size |
| Standard: | GB / ANSI /JIS / DIN | Material: | Ductile iron |
| Technics: | Stamping and Welding | Connection: | Flange |
| Brand Name | Ductile iron flange | Model Number | LJ-PF055 |
| Certification | ISO9001 | Place of Origin | China |
| High Light | Threaded ductile flange ，ductile iron flanged fittings | ||
Ductile iron is a kind of high-strength cast iron material developed in 1950s. Its comprehensive properties are close to that of steel. Based on its excellent properties.It has been successfully used to cast some parts with complex stress, high strength, toughness and wear resistance. Ductile iron has developed rapidly into a widely used cast iron material next to grey cast iron. The so-called "iron for steel" mainly refers to ductile iron.
Spheroidal graphite is obtained by spheroidizing and inoculation treatment, which effectively improves the mechanical properties of cast iron. Especially the plasticity and toughness, so as to obtain higher strength than carbon steel.
It is also used for the flange on the inlet and outlet of equipment, which is used for the connection between two equipment. There are holes on the flange, the bolts make the two flanges tightly connected, and the flange is sealed with gasket.Ductile iron pipe fittings with ductile iron flange connecting ductile iron pipes.
Standard: GB / ANSI /JIS / DIN
Technics: Stamping and Welding
Connection: Flange
The socket and spigot of ductile iron pipe shall be cut off, and then the external thread of pipe orifice at both ends of the pipe shall be processed.The thread pitch shall be 3mm, and the thread length shall be 3mm thicker than the cast iron flange.For each processing of a pipe, two internal threads of cast iron flange shall be processed.
After the pipe and the supporting flange are processed, the flange and the pipe shall be trial connected. It is required that the flange and the pipe thread shall be well matched and rotate flexibly without looseness.After the processed pipe is connected with the processed flange (with internal thread), one end of the pipe shall expose the flange surface for about 3mm.
After the flange connection is completed, the butt joint of the pipeline shall be carried out. During the butt joint, a rubber pad shall be added at the pipe joint, and a horizontal line of the two connected pipelines shall be ensured. When the above conditions are met, the bolt connection between the flange plates shall be carried out.
Ductile iron flange is manufactured by EPC process, with short production cycle, high dimensional accuracy, cement lining, external spraying of anticorrosive zinc and asphalt paint, corrosion resistance and long service life. The lining is cement mortar and Portland cement. It is coated with metallic zinc and asphalt paint. According to ISO2531 standard, the pressure is PN16. Material: nodular iron, large volume, light weight, good ductility and toughness.
Threaded Steel Pipe Flanged Ductile Iron Pipe Fittings technical data sheet as below:
| inch | Nominal diameter | 10kg=l. 0MPa | Nominal diameter | 16kg=l. 6MPa | ||||||||
| outer diameter | Bolt hole distance | Bolt diameter | Bolt hole number | Flange thickness | outer diameter | Bolt hole distance | Bolt diameter | Bolt hole number | Flange 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 |
| 1¼ | DN32 | 140 | 100 | 18 | 4 | 18 | DN32 | 140 | 100 | 18 | 4 | 18 |
| 1½ | 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 |
| 2½ | 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 |
| 3½ | 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 |
a. Plastic bubble bag package b.Wove bag package c.Pallet d. Customized.
Our Steel flat factory have high ability for production, the delivery time is 25 days for small quantity, or if you are hurry for that, we can arrange and meet your shipping date.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2002
Total Annual:
20000000-30000000
Employee Number:
20~50
Ecer Certification：
Active Member
Xi'an Longjoy Foreign Trade Co., Ltd. was established in 2002 and located in Xi'an Land Center, mainly engaged in the import and export of various pipe and pipe fittings. Our business scope is mainly in steel and plastic products, such as Carbon steel pipe fittings, stainless steel... Xi'an Longjoy Foreign Trade Co., Ltd. was established in 2002 and located in Xi'an Land Center, mainly engaged in the import and export of various pipe and pipe fittings. Our business scope is mainly in steel and plastic products, such as Carbon steel pipe fittings, stainless steel...
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