Ductile Iron Pipe of China DN400-DN900 EN545 Factory Quality
- Ref Price:
-
$460.00 - 480.00
/ m.t.
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 22 m.t.
- Supply Capability:
- 200000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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1. Ductile Iron Pipe Description：
1) Pipes confirm to ISO2531,K9 class,T type joint,6m long,with inside cements lining conform to ISO4179, outside Zinc spraying(130g/m2) and bitumen coating(70μm) conform to ISO8179.
2) Pipe ends: Spigot and socket ends, with 100% SBR rubber gaskets accoding to ISO4633
3) we can do third party inspection according to customer's request.
4) Our products have been sold to many international market, such as Middle East and South East Asia and Africa.
2. Main Features of the Ductile Iron Pipe:
1).Quality guarantee
• Chemical checking
• NDE after rough machining
• Mechanical testing after heat treatment
• Final NDE,dimension inspected
2).Quality document
• Full Q.A document as per client request
3).Packing and Shipping
• standard export package(carton/wooden case/pallet)
• accept FOB,FAS,CNF,CIF door to door etc or customer designated shipping agent
4). Length: 6m or cut into 5.6m, 5.7m, 5.8m
5). Internal Lining: Cement, conform to ISO4179
6). External coating: Zinc + Bitumen, conform to ISO8179
4. Ductile Iron Pipe Specification:
Additional Services: Internal Coating
Packaging: packed in bag, plastic bag, steel strip, steel wire,double wire, iron box, wooden box, tarpaulin, plastic sheeting
Inspection: MOODY SGS BV GL DNV ABS LIOYD’S
Test: X-ray, UT, magnetic particle,inspection,hydrostatic test.
Processing service: Beveling, Threading, Slotting, Cut-to length, Bends, Quench and Temper, Fabrication, Double-jointing and On-site assistance
Documentary: MTC, material certification,Origin certification, CI or PI,Test Report, export licence, handling order, B/L,insurance policy,shipping instructions, contract, packing list etc.
Gasket: 100% SBR/NBR/EPDM rubber gasket in accordance with ISO4633.
5. FAQ:
We have organized several common questions for our clients，may help you sincerely：
1. Q: Why would you choose ductile iron pipe rather than other pipe materials?
A:The reasons are obvious for that not only ductile iron pipe possesses the inherent strength and flexibility of ductile iron, combined with proven corrosion protection systems, but also the cost savings can be achieved from design to installation and commissioning.
2. Q:Why can you guarantee the inner of pipes can’t be corroded?
A: High alumina cement mortar lining and sulphate-resistant cement mortar lining. These two special linings are applicable to inner anti-corrosion for sewage pipes, improving resistance to erosion of the sewage components.
- Q: Maximum pipe diameter of ductile iron pipe
- Price even if it is not clear, you can consult the ball mill cast iron pipe manufacturers!
- Q: What is the expected fire resistance of ductile iron pipes?
- The expected fire resistance of ductile iron pipes can vary depending on several factors such as the thickness of the pipe walls, the quality of the installation, and the surrounding conditions. However, generally speaking, ductile iron pipes have a high fire resistance due to their durable and heat-resistant material composition. Ductile iron is made by adding a small amount of magnesium to cast iron, which enhances its strength and flexibility. This makes ductile iron pipes less susceptible to cracking or breaking under high temperatures compared to other materials like PVC or HDPE pipes. In terms of fire resistance, ductile iron pipes can withstand high temperatures for an extended period of time without significant structural damage. They have been tested and proven to maintain their integrity in fire conditions for up to 2-4 hours, depending on the specific pipe design and installation. It is important to note that while ductile iron pipes have a high fire resistance, they are not fireproof. In case of a fire, it is crucial to follow proper fire safety protocols and consult with professionals to ensure the safety of the system and surrounding infrastructure.
- Q: The difference between cast iron pipe and ductile iron pipe
- Ductile iron is based on the cast iron to change some of the characteristics of the structure of iron, so that it has become a lot of toughness, than the cast iron pipe is too brittle shortcomings much better, the tensile strength of the pipe bending strength greatly improved. The sealing material used in the socket interface is rubber ring.
- Q: How are ductile iron pipes protected against internal corrosion?
- Ductile iron pipes are protected against internal corrosion through a combination of various preventive measures. One of the primary methods is the application of a protective coating on the inner surface of the pipe. This coating acts as a barrier between the pipe and the transported fluid, preventing direct contact and minimizing the chances of corrosion. Another common method used is the application of a cement mortar lining. This lining further enhances the protective barrier, reducing the likelihood of corrosion even in aggressive environments. The cement mortar also provides a smooth surface, reducing friction and improving the flow of water or other fluids through the pipe. In addition to coatings and linings, ductile iron pipes are often designed with corrosion-resistant alloys or additives. These alloys, such as zinc or epoxy, are added during the manufacturing process and provide an extra layer of protection against internal corrosion. They act as sacrificial anodes, corroding over time to protect the underlying iron from degradation. Regular maintenance and inspection are also crucial in protecting ductile iron pipes against internal corrosion. Monitoring the condition of the protective coatings, identifying any signs of degradation or damage, and promptly addressing any issues are essential to ensure the long-term integrity of the pipes. Overall, a combination of protective coatings, cement mortar linings, corrosion-resistant alloys, and regular maintenance efforts work together to effectively protect ductile iron pipes against internal corrosion, extending their lifespan and ensuring the safe transportation of fluids.
- Q: What are the typical surge anticipation measures for ductile iron pipe?
- Typical surge anticipation measures for ductile iron pipe involve implementing various techniques to mitigate the potential damage caused by surges or water hammer in the pipe system. These measures are designed to absorb or redirect the sudden pressure changes, preventing the pipe from rupturing or failing. Some common surge anticipation measures for ductile iron pipe include: 1. Air chambers: Air chambers are installed at strategic points along the pipeline to provide a cushion of air that absorbs the energy generated by surges. As the pressure wave travels through the pipe, the air compresses, reducing the impact on the pipe and minimizing the risk of damage. 2. Surge tanks: Surge tanks are large vessels connected to the pipeline that act as storage reservoirs for excess pressure. When a surge occurs, the surge tank absorbs the excess water volume, preventing it from causing damage to the pipe. The stored water is then gradually released back into the system, allowing pressure to stabilize. 3. Surge relief valves: Surge relief valves are installed in the pipeline to automatically release excess pressure during surge events. These valves open when the pressure exceeds a preset limit, allowing the surge to dissipate harmlessly. Surge relief valves can be adjusted to release the desired amount of pressure, ensuring the safety of the ductile iron pipe. 4. Water hammer arrestors: Water hammer arrestors are devices that absorb the shock generated by surges and water hammer in the pipe system. They consist of a sealed chamber with a compressible gas or liquid that absorbs the sudden pressure changes. By absorbing the energy, water hammer arrestors protect the ductile iron pipe from potential damage. 5. Surge suppressors: Surge suppressors are devices that regulate the flow of water during surge events. They are designed to reduce the speed at which surges travel through the pipe, minimizing the impact on the system. Surge suppressors can be installed at critical points in the pipeline to prevent damage to the ductile iron pipe. It is essential to consider the specific requirements of the pipeline system and consult with experienced engineers or industry professionals to determine the most suitable surge anticipation measures for ductile iron pipe installations.
- Q: How are ductile iron pipes different from PVC pipes?
- Ductile iron pipes and PVC pipes are two different materials commonly used in plumbing and water distribution systems. The main difference between ductile iron pipes and PVC pipes lies in their composition and properties. Ductile iron pipes are made from a specific type of cast iron that contains graphite nodules, which give the material its ductility and flexibility. This allows the pipes to withstand high pressures and heavy loads without breaking or cracking. Ductile iron pipes are known for their strength and durability, making them ideal for underground applications and areas with high traffic loads. On the other hand, PVC pipes are made from a type of plastic called polyvinyl chloride. PVC pipes are rigid and inflexible, and they do not have the same strength as ductile iron pipes. PVC pipes are commonly used in low-pressure applications, such as residential plumbing systems, irrigation, and drainage systems. They are lightweight, easy to install, and resistant to corrosion, making them a popular choice for residential and non-industrial applications. Another difference between ductile iron pipes and PVC pipes is their cost. Ductile iron pipes tend to be more expensive due to their higher material and production costs. PVC pipes, on the other hand, are relatively cheaper to manufacture, making them a cost-effective option for many plumbing projects. In summary, the main differences between ductile iron pipes and PVC pipes are their composition, strength, flexibility, and cost. Ductile iron pipes are made from cast iron and are known for their strength and durability, while PVC pipes are made from plastic and are more lightweight and cost-effective. The choice between ductile iron pipes and PVC pipes depends on the specific requirements of the plumbing project, including pressure, load-bearing capacity, and budget considerations.
- Q: What is the difference between ductile iron and cast iron pipes?
- Ductile iron pipes and cast iron pipes are both popular materials for plumbing systems, but they differ in composition, strength, flexibility, installation methods, and cost. 1. Composition: Ductile iron pipes are made from a type of cast iron that has been treated with trace amounts of magnesium, enhancing its flexibility and strength. In contrast, cast iron pipes are made from regular cast iron, which is less malleable and more brittle. 2. Strength: Ductile iron pipes are significantly stronger than cast iron pipes, with higher tensile strength to withstand greater internal and external pressure. This makes them ideal for applications requiring high strength, such as water mains or sewer lines. Cast iron pipes, however, are more prone to cracking or breaking under pressure. 3. Flexibility: Ductile iron pipes have greater flexibility, allowing them to withstand ground movement without damage or breakage caused by settling or shifting soil. On the other hand, cast iron pipes are more susceptible to cracking or separating when exposed to ground movement or vibrations due to their inherent brittleness. 4. Installation: Ductile iron pipes are typically joined using mechanical or flanged joints, ensuring secure and leak-proof connections. In contrast, cast iron pipes are usually joined using bell-and-spigot joints, relying on gaskets or lead caulking for a seal. The mechanical joint used in ductile iron pipes offers better resistance to movement and external forces. 5. Cost: Ductile iron pipes are generally more expensive than cast iron pipes due to the additional treatment process and higher strength. However, the added durability and longer lifespan of ductile iron pipes can offset the initial investment by reducing the need for repairs or replacements over time. In conclusion, ductile iron and cast iron pipes differ in composition, strength, flexibility, installation methods, and cost. Ductile iron pipes offer superior strength and flexibility, making them suitable for demanding applications, while cast iron pipes are more brittle and prone to breakage. The choice between the two depends on the specific requirements of the plumbing system and the available budget.
- Q: How are ductile iron pipes made?
- Ductile iron pipes are made using a specific manufacturing process known as centrifugal casting. This process involves pouring molten iron into a rotating mold, which is usually made of steel. The centrifugal force created by the rotation of the mold helps in distributing the molten iron evenly, ensuring the final product is of high quality. To begin the manufacturing process, a mixture of scrap iron, steel, and recycled material is melted in a furnace at extremely high temperatures. Once the molten iron reaches the desired temperature and consistency, it is ready to be cast into pipes. The rotating mold is first preheated to prevent the molten iron from cooling too quickly. The preheating process also helps in ensuring a smooth surface finish of the pipes. Next, the molten iron is poured into the rotating mold through a central sprue. As the mold spins, the molten iron is forced against the inner walls of the mold due to centrifugal force. This causes the iron to solidify rapidly, resulting in a dense, strong, and corrosion-resistant pipe. The centrifugal force also helps to remove any impurities or slag from the inner surface of the pipe, further enhancing its quality. Once the casting process is complete, the mold is allowed to cool, and the pipe is removed. The pipes are then subjected to various tests to ensure they meet the required quality standards. These tests may include checking the dimensions, mechanical properties, and surface finish of the pipes. After passing the quality tests, the ductile iron pipes are typically coated with a protective lining to prevent corrosion and extend their lifespan. This lining can be made of cement mortar, epoxy, or polyethylene, depending on the intended application of the pipes. In summary, ductile iron pipes are made through the centrifugal casting process, which involves pouring molten iron into a rotating mold. This process ensures the production of strong, corrosion-resistant pipes with a smooth surface finish.
- Q: What is the expected joint deflection of ductile iron pipes?
- The expected joint deflection of ductile iron pipes depends on various factors such as the diameter of the pipe, the type of joint used, and the specific conditions of the installation. In general, ductile iron pipes are designed to accommodate some degree of deflection at the joints to allow for flexibility and movement. The American Water Works Association (AWWA) provides guidelines for the maximum allowable joint deflection for ductile iron pipes. According to AWWA C151/A21.51, the maximum deflection at the joint should typically not exceed 3 degrees or 1% of the nominal pipe diameter, whichever is greater. It is important to note that joint deflection should be within the specified limits to ensure the structural integrity and performance of the pipeline system. Excessive joint deflection can lead to leaks, failures, and reduced lifespan of the pipes. To determine the exact expected joint deflection for a specific installation, it is best to refer to the manufacturer's specifications and guidelines, as they may vary depending on the pipe size, joint type, and other factors. Consulting with a qualified engineer or contacting the manufacturer directly can provide more accurate information tailored to the specific project requirements.
- Q: What is the maximum allowable deflection for ductile iron pipes?
- The maximum allowable deflection for ductile iron pipes is typically specified by industry standards and guidelines, such as those provided by the American Water Works Association (AWWA) and the Ductile Iron Pipe Research Association (DIPRA). These standards specify the maximum allowable deflection as a percentage of the pipe's outside diameter. According to AWWA C150/A21.50 and DIPRA's Technical Bulletin No. 10, the maximum allowable deflection for ductile iron pipes can vary depending on factors such as pipe size, wall thickness, and soil conditions. However, a common rule of thumb is that the maximum allowable deflection should not exceed 3% of the pipe's outside diameter. It is important to note that exceeding the maximum allowable deflection can result in potential structural issues and reduced performance of the ductile iron pipe. Therefore, it is crucial to adhere to the industry standards and guidelines to ensure the proper installation and functioning of ductile iron pipes.
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Ductile Iron Pipe of China DN400-DN900 EN545 Factory Quality
- Ref Price:
-
$460.00 - 480.00
/ m.t.
- Loading Port:
- China main port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 22 m.t.
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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