Ductile Iron Pipe of China DN250 EN545/EN598/ISO2531 High Quality

Ductile Iron Pipe of China DN250 EN545/EN598/ISO2531 High Quality System 1

Ductile Iron Pipe of China DN250 EN545/EN598/ISO2531 High Quality

Ref Price:: $475.00 / m.t.

Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 20 m.t.

Supply Capability:: 200000 m.t./month

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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:

·High yield strength

·High tensile Strength

·High corrosion resistance

·Pressure Resistence

·Anti-corrosion

·Installation is convenient

·Satisfy the highest hygienic standards

3,Ductile Iron Pipe Images:

Ductile Iron Pipe of China DN5500 High Quality

4. Ductile Iron Pipe Specification

Material: Ductile iron grade 500-7/ 450-10 in accordance with ISO1083

Standard: ISO 2531, EN545, EN598, ANSI, AWWA

Certificate: ISO9001, ISO14001, SGS, NSF, WRAS

Test: In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test

Length: 6m or cut into 5.6m, 5.7m, 5.8m

Internal Lining: Cement, conform to ISO4179

External coating: Zinc + Bitumen, conform to ISO8179

Rubber: NBR, SBR, EPDM according to ISO4633 / EN681.1

Note: The gaskets, bolts & nuts are supplied respectively as your special requirement

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: What are the lubricants for the installation of ductile iron pipes for tap water?: Lubricant used to reduce frictional resistance of friction pairs and to retard wear of lubricating medium.

Q: Fire water supply network adopts ductile iron pipe, the test pressure should be no more than MPa: To your selected fire pump highest lift 1.5 times to suppress, generally not more than 1.6MPa, if the use of ductile iron pipe, test pressure according to 2MPa to suppress.

Q: Ductile iron pipes perennial bubbles in the water will rot it: Water supply pipe is the first choice, with high cost performance. Compared with the PE pipe, from the installation time, ductile pipe PE pipe installation is simple and rapid, and after the installation of internal and external pressure bearing better tightness and corrosion resistance; from the point of view, ductile pipe sealing better after installation, but also can improve the corrosion resistance through various anti-corrosion methods;

Q: Can ductile iron pipe be used for potable water systems?: Potable water systems can utilize ductile iron pipe. Ductile iron, a form of cast iron, stands out for its strength, durability, and ability to handle high pressure. It is also resistant to corrosion, making it suitable for water distribution systems. Due to its long lifespan and minimal upkeep requirements, ductile iron pipe is frequently employed in potable water systems. Various standards organizations, such as the American Water Works Association (AWWA), have approved its use in potable water applications. However, it is crucial to adhere to the correct standards and regulations during the manufacturing and installation of ductile iron pipe for potable water systems to guarantee the safety and quality of the water supply.

Q: What's the difference between grey cast iron pipe and ductile iron pipe?: Ductile iron is close to medium carbon steel and is much cheaper. Vermicular graphite iron is the best, but grey iron is worse and white iron is the worst. Therefore, the quality of ductile iron pipe with better quality and price is superior to other cast iron pipe fittings.

Q: How is ductile iron different from cast iron?: Ductile iron and cast iron are two types of iron alloys that differ in terms of their composition, properties, and applications. The main difference between ductile iron and cast iron lies in their microstructure and mechanical properties. Ductile iron, also known as nodular cast iron or spheroidal graphite iron, is a type of cast iron that undergoes an additional treatment process to enhance its strength and ductility. This is achieved by adding small amounts of magnesium to the molten iron during the casting process, which results in the formation of graphite nodules throughout the material. These graphite nodules act as stress raisers and prevent the propagation of cracks, making ductile iron more resistant to fractures and providing it with improved ductility compared to cast iron. In contrast, cast iron is a type of iron alloy that contains a higher carbon content than ductile iron. This higher carbon content leads to the formation of graphite flakes within the material, giving cast iron its characteristic brittle nature. Due to its brittleness, cast iron is more prone to cracking and less flexible than ductile iron. However, cast iron has excellent compressive strength and is highly resistant to wear and abrasion, making it suitable for applications where strength and durability are important, such as in engine blocks, pipes, and manhole covers. Another difference between ductile iron and cast iron is their machinability. Ductile iron is generally easier to machine due to its lower carbon content and the presence of graphite nodules, which act as lubricants during the cutting process. On the other hand, the presence of graphite flakes in cast iron can cause tool wear and result in poor surface finish during machining. In summary, ductile iron and cast iron differ in their microstructure, mechanical properties, and applications. Ductile iron offers improved ductility and resistance to fractures, making it suitable for applications requiring flexibility and impact resistance. Cast iron, with its higher carbon content and graphite flakes, provides excellent compressive strength and wear resistance, making it ideal for applications requiring strength and durability.

Q: What does ductile iron pipe "K" mean?: The higher the K level, the better the quality, and the national standard requires K9

Q: How are ductile iron pipes tested for quality assurance?: Ductile iron pipes undergo various testing procedures to ensure their quality and meet industry standards. These quality assurance tests are conducted on both raw materials and finished products to ensure the durability, strength, and overall reliability of ductile iron pipes. One of the initial tests is the chemical analysis of the raw materials used in manufacturing the pipes. This analysis ensures that the composition of the iron, carbon, and other elements is within the specified range, as different compositions can affect the pipe's strength and corrosion resistance. Next, mechanical tests are performed to evaluate the strength and ductility of the pipes. Tensile tests are conducted to determine the ultimate tensile strength, yield strength, and elongation properties of the pipe. This helps in assessing the pipe's ability to withstand external pressure or bending forces. Additionally, impact tests are performed to evaluate the pipe's resistance to sudden loading or impact. This test measures the energy absorbed by the pipe when subjected to a high impact force, ensuring that it can withstand potential accidental impacts during installation or operation. Another critical test is the hydrostatic pressure test, which checks the pipes' ability to withstand internal pressure. In this test, the pipes are filled with water and subjected to a specified pressure for a specific duration. This ensures that the pipes can withstand the expected operating pressure without any leakage or failure. Furthermore, dimensional and visual inspections are conducted to ensure that the pipes meet the required specifications. These inspections include checking the pipe's outer diameter, length, wall thickness, and overall appearance for any defects, such as cracks, voids, or irregularities. Lastly, corrosion resistance tests are performed to assess the pipe's ability to resist corrosion when exposed to different environments or fluids. This helps in determining the expected lifespan of the pipes and their suitability for various applications. Overall, these quality assurance tests play a crucial role in ensuring that ductile iron pipes meet the required standards and provide reliable and long-lasting performance in various infrastructure projects.

Q: What is a slide in type T flexible interface?: There are many kinds of cast iron pipe interface. The commonly used interfaces include sliding type (T type) flexible interface, mechanical type (K type) flexible interface, mechanical type (NII type, SII type) flexible interface, flange type interface and special interfaceSliding type (T type) flexible interfaceSlide type (T type) flexible interface as shown below. The ductile interface is widely used in the DN I000mm following the cast iron pipe, has the advantages of simple structure, convenient installation, good sealing characteristics. In the socket structure considering the location of the rubber ring and the deflection angle, this interface can adapt to deformation a certain foundation, has certain anti vibration ability, at the same time using the deflection angle of the long distance pipeline to achieve steering.

Q: Can centrifugal cast iron pipe be galvanized or coated with asphalt which is good for corrosion prevention?: 1, outdoor grounding of anti-corrosion, we must consider the contact resistance, so it is recommended not to use asphalt, and do not use anti-corrosion paint, preferably galvanized anti-corrosion.2, asphalt anti-corrosion paint has good water resistance, moisture resistance, corrosion resistance. Acid and alkali resistance, salt fog resistance, atmospheric exposure and so on. The utility model is suitable for coating internal and external surfaces of various containers and machinery, underground steel structures and underground pipelines for moisture proof, water resistance and corrosion prevention. The utility model is also suitable for repairing water cracks in houses.3, anticorrosive paint is used in the surface of the object, can be used to protect the interior of the object without corrosion of a kind of paint. It is one of the more commonly used than paint anti-corrosion paint in industrial construction, widely used in aviation, shipbuilding, chemical, oil pipelines, steel structures, bridges, oil rigs and other fields, by the vast number of manufacturers favor building.

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