Doğrulanmış işletme lisanslarına sahip tedarikçiler
Denetlenen Tedarikçi Ductile iron pipe is pipe made of ductile cast iron commonly used for potable water transmission and distribution. This type of pipe is a direct development of earlier cast iron pipe, which it has superseded.The ductile iron used to manufacture the pipe is characterized by the spheroidal or nodular nature of the graphite within the iron. Typically, the pipe is manufactured using centrifugal casting in metal or resin lined moulds. Protective internal linings and external coatings are often applied to ductile iron pipes to inhibit corrosion: the standard internal lining is cement mortar and standard external coatings include bonded zinc, asphalt or water-based paint. 
| Name | Ductile iron water supply pipe |
| Material | C, Si, Mn, P, S, Mg |
| Length | 6m or customized |
| Color | Black |
| Advantage | Anti-corrosion; Various types; Anti-infiltration; Anti-aging; Good duralbility |
| Processing | pitch coated outside, Cement mortar lining |
1.Standard:ISO2531,EN545,EN598,ANSI/AWWA,C151/A21
2.Effective Length:6m/5.7m
3.Internal Lining :Ordinary Portland Cement ,Sulphate resistant cement ,High-aluminal Cement.
4.External coating:Zinc Primer Plus Bitumen or Expoxy Paiting
5. Shipment: By bulk ship or 20'/40' containr
6. Rubber: NBR, SBR, EPDM according to ISO4633/EN681.1
| DN(mm) | DE(mm) | THICKNESS OF WALL(mm) | WEIGHT OF SOCKET(kg) | TOTAL WEIGHT(kg) | ||||
| K8 | K9 | K10 | 3.4 | K8 | K9 | K10 | ||
| 80 | 98 | 6 | 6 | 6 | 4.3 | 77 | 77 | 77 |
| 100 | 118 | 6 | 6 | 6 | 5.7 | 93.7 | 95 | 95 |
| 125 | 144 | 6 | 6 | 6 | 7.1 | 119 | 119 | 121 |
| 150 | 170 | 6 | 6.O | 6 | 10.3 | 138 | 144 | 144 |
| 200 | 222 | 6 | 6.3 | 6.4 | 18.9 | 183 | 194 | 194 |
| 300 | 326 | 6.4 | 7.2 | 8 | 23.7 | 290 | 323 | 357 |
| 350 | 378 | 6.8 | 7.7 | 8.5 | 29.5 | 359 | 403 | 441 |
| 400 | 429 | 7,2 | 8.1 | 9 | 38.3 | 433 | 482 | 532 |
| 450 | 480 | 7.6 | 8.6 | 9.5 | 42.8 | 515 | 577 | 632 |
| 500 | 532 | 8 | 9 | 10 | 59.3 | 600 | 669 | 736 |
| 600 | 635 | 8.8 | 9.9 | 11 | 79.1 | 791 | 882 | 971 |
| 700 | 738 | 9.6 | 10.8 | 12 | 102.6 | 1009 | 1123 | 1237 |
| 800 | 842 | 10.4 | 11.7 | 13 | 129 | 1255 | 1394 | 1537 |
| 900 | 945 | 11.2 | 12.6 | 14 | 161.3 | 1521 | 1690 | 1863 |
| 1000 | 1048 | 12 | 13.5 | 15 | 237.7 | 1811 | 2017 | 2221 |
In highly corrosive environments loose polyethylene sleeving (LPS) to encase the pipe may also be used. Life expectancy of unprotected ductile iron pipes depends on the corrosiveness of soil present and tends to be shorter where soil is highly corrosive. However, a lifespan in excess of 100 years has been estimated for ductile iron pipelines installed using "evolved laying practices", including use of properly installed LPS (polyethylene encasement). Studies of ductile iron pipe's environmental impact have differing findings regarding emissions and energy consumed.
Shandong Runhai Stainless Steel Co., Ltd. is located in Jinan city, Shandong Province, with a registered capital of 51.17 million yuan. Is a set of domestic trade, foreign trade in one of the professional steel sales company. The company's products include stainless steel, seamless tube, color coated plate, galvanized plate, aluminum plate, aluminum plate, copper plate and other profiles, building materials, pipe series. The products are widely used in chemical, pharmaceutical, electric power, railway, automobile, paper making and construction engineering. The company has long-term and close trade relations with shandong Iron and Steel, Tangshan Iron and Steel, Handan Iron and Steel, Jinxi iron and steel and other well-known domestic steel companies. The company has advanced WMS, CRM management system, to ensure that our customers in the whole process of product consulting, procurement, ordering, use without worry!
1. who are we?
We are based in Shandong, China, start from 2021,sell to Southeast Asia(20.00%),North America(15.31%),Africa(13.00%),South America(11.27%),Eastern Europe(10.31%),South Asia(10.00%),Oceania(5.00%),Central America(5.00%),Southern Europe(3.11%),Western Europe(3.00%),Mid East(1.00%),Eastern Asia(1.00%),Northern Europe(1.00%),Domestic Market(1.00%). There are total about 5-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Carbon steel pipe,Carbon steel plate,Carbon steel coil,Carbon steel rods,Carbon steel material
4. why should you buy from us not from other suppliers?
Our company has advanced production equipment, can meet customer customized service requirements, product quality and delivery speed are the world's leading level.
5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian.
Doğrulanmış işletme lisanslarına sahip tedarikçiler
Denetlenen Tedarikçi 
