DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN200

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 22 pc

Supply Capability:: 3000 pc/month

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Ductile Iron Pipe On Sale Made In China DN100

Material : Ductile Cast Iron
Size Range : DN 80mm to DN 2000mm
Unit Effective Length : 6m or 5.7m
Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007
Annual capacity : 200,000 tons
Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.
Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179
Special requirements on external coating and internal lining can be applied
We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

Additional Parts:

Each pipe is strictly inspected according to related standard to ensure permanently high performance.
Easy Installation at site and service free for life
Long Service Lifespan
Quotation will arrive you within 24hours once we get your inquiry.
We guarantee offering you a competitive price.
A copy of original inspection reports of pipes will be offered after shipment.
Photos of loading process will be sent to the customer after shipment effect.
We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.

Q:Can ductile iron pipes be used for underground chemical transport systems?: Ductile iron pipes are commonly used for various applications due to their strength, durability, and resistance to corrosion. However, when it comes to underground chemical transport systems, there are certain factors that need to be considered before choosing ductile iron pipes as the suitable material. Firstly, the type of chemicals being transported should be evaluated. Ductile iron pipes are generally resistant to a wide range of chemicals, including acids, alkalis, and organic solvents. However, there are some chemicals that can corrode or react with the iron content of the pipes, leading to degradation and potential leakage. Therefore, it is crucial to assess the chemical compatibility and consult with chemical engineers or experts to determine whether ductile iron pipes are suitable for specific chemical transport applications. Secondly, the concentration and temperature of the chemicals should be taken into account. Elevated temperatures and high concentrations of certain chemicals can accelerate the corrosion process, potentially compromising the integrity of the pipes. It is essential to assess the operating conditions and ensure that the ductile iron pipes can withstand the chemical concentration and temperature levels. Additionally, the potential presence of abrasive or erosive chemicals should be considered. If the transported chemicals contain abrasive particles or have erosive properties, it may lead to increased wear and tear on the inner surface of the pipes, reducing their lifespan and potentially causing leaks. In such cases, alternative materials with higher resistance to abrasion or erosion may be more suitable. Lastly, it is important to comply with relevant regulations and standards. Different countries or regions may have specific requirements for underground chemical transport systems, including the choice of materials. It is necessary to ensure that ductile iron pipes meet the necessary standards and are approved for use in such applications. In conclusion, while ductile iron pipes have many desirable properties for various applications, including underground use, their suitability for chemical transport systems depends on several factors. Chemical compatibility, concentration and temperature levels, the presence of abrasive or erosive chemicals, and compliance with regulations should all be carefully evaluated before deciding to use ductile iron pipes for underground chemical transport systems. Consulting with experts in the field is highly recommended to ensure the safety and effectiveness of the chosen piping material.

Q:Is ductile iron pipe breakable?: 1 、 the drainage pipe is easy to fold. Folding is formed on the surface of various drainage pipe line, the longitudinal defects often throughout the entire product;2, poor drainage pipe surface prone to scarring;3, inferior drainage pipe, no metallic luster, is pale red or similar to the color of pig iron;4, inferior drainage pipe easily scratch, because the inferior material manufacturers equipment is simple, easy to produce burr, scratches the drainage pipe surface. Deep scrape reduces the strength of the ball drain;

Q:How are ductile iron pipes inspected for quality control?: Ductile iron pipes are inspected for quality control through a series of rigorous tests and inspections to ensure their compliance with industry standards. One of the most common methods used is visual inspection, where trained inspectors examine the pipes for any visible defects such as cracks, pits, or surface irregularities. This helps in identifying any visual defects that may compromise the overall quality of the pipes. In addition to visual inspection, another crucial quality control measure is dimensional inspection. This involves measuring the dimensions of the pipes, such as diameter, wall thickness, and length, using specialized tools and equipment. By comparing these measurements against the specified tolerances, any deviations can be identified, and necessary corrective actions can be taken. Another important quality control step is hydrostatic pressure testing. In this test, the pipes are subjected to internal pressure that is higher than their intended operating pressure. This ensures that the pipes can withstand the required pressure without any leakage or failure. The test involves filling the pipes with water and gradually increasing the pressure, while closely monitoring for any signs of leakage or deformation. Furthermore, ductile iron pipes undergo various mechanical tests, such as tensile strength testing and impact testing, to evaluate their mechanical properties. These tests involve applying controlled forces or impacts to the pipes and measuring their response. By doing so, the strength, toughness, and durability of the pipes can be assessed, ensuring they meet the necessary requirements. Lastly, metallurgical examinations are conducted to analyze the microstructure of the ductile iron pipes. This involves taking samples from the pipes and using microscopy techniques to examine the grain structure, phase distribution, and any potential defects at a microscopic level. This helps in identifying any issues that may not be visible to the naked eye but could affect the overall quality of the pipes. Overall, the inspection process for ductile iron pipes involves a combination of visual, dimensional, hydrostatic, mechanical, and metallurgical tests. These quality control measures help ensure that the pipes meet the required standards, providing reliable and durable infrastructure for various applications.

Q:What is the composition of ductile iron pipes?: Ductile iron pipes consist mainly of iron, with small amounts of carbon, silicon, and other alloying elements. The iron content typically ranges from 90% to 94%, while carbon content is usually around 3% to 4%. Silicon is added between 1.5% to 3%, which enhances the ductility and strength of the iron. Smaller quantities of manganese, sulfur, and phosphorus may also be present. The composition of ductile iron pipes is carefully engineered to achieve specific properties. By adding carbon and silicon, the hardness and strength of the iron are improved, making it suitable for demanding applications. These alloying elements also contribute to the pipes' ductility, allowing them to be easily bent and molded without breaking. In summary, the composition of ductile iron pipes is designed to strike a balance between strength, ductility, and resistance to corrosion. This makes them ideal for use in water and sewage systems, where they can endure high pressure, bear heavy loads, and resist the corrosive effects of water and other chemicals.

Q:How are ductile iron pipes protected against erosion caused by high-velocity flow?: Ductile iron pipes are protected against erosion caused by high-velocity flow through various methods and techniques. One common method is the application of protective coatings on the inner surface of the pipes. These coatings create a barrier between the flowing water and the pipe material, reducing the abrasive effects of the high-velocity flow. The coatings used may include epoxy, polyurethane, or cement-mortar lining, depending on the specific requirements of the application. Additionally, manufacturers often design the pipes with increased wall thickness in areas that are prone to erosion, such as bends or areas where the flow velocity is highest. This extra thickness provides additional strength and resistance against erosion. Another technique used to protect ductile iron pipes from erosion is the implementation of flow control devices, such as flow deflectors or velocity-reducing fittings. These devices help to redirect the flow and reduce its velocity, thereby minimizing the impact on the pipe walls. Regular maintenance and inspections are also crucial in preventing erosion. By monitoring the condition of the pipes and identifying any signs of erosion early on, appropriate measures can be taken to address the issue before it escalates. This may involve repairing or replacing damaged sections of the pipes, as well as implementing erosion control measures such as sediment filters or flow restrictors. Overall, a combination of protective coatings, design considerations, flow control devices, and proactive maintenance strategies are employed to ensure that ductile iron pipes are adequately protected against erosion caused by high-velocity flow.

Q:Can cast iron pipes not be used for domestic water supply and drainage?: Yes, the main use is, outdoor water supply pipe can be PE or ductile iron (socket connection). Indoor water is now used in general plastic pipes, but in the past seems to be able to use ductile iron, as for drainage, generally do pressure type drainage, when the choice is cast iron pipe. There are also indoor fire pipes using welded steel tubes or ductile iron.

Q:What are the different types of joints used with ductile iron pipe?: The different types of joints commonly used with ductile iron pipe include push-on joints, mechanical joints, restrained joints, flanged joints, and welded joints. Each type of joint offers different benefits and is used depending on the specific requirements of the installation.

Q:Do ductile iron pipes require external protection against stray electrical currents?: Yes, ductile iron pipes do require external protection against stray electrical currents. Stray electrical currents can cause corrosion to the pipe, leading to premature failure and potential leaks. To protect against this, external coatings or wraps are applied to the ductile iron pipes to provide a barrier between the pipe and the electrical currents. This protection helps to ensure the longevity and reliability of the pipes, preventing costly repairs and potential safety hazards.

Q:Can ductile iron pipes be used for irrigation of golf courses?: Certainly, ductile iron pipes are applicable for the irrigation of golf courses. Renowned for their durability, strength, and resistance to corrosion, these pipes are suitable for a wide range of uses, including irrigation systems. They possess the ability to endure high-pressure water flow and are less prone to cracking or breaking when compared to alternative materials. Moreover, ductile iron pipes boast an extended lifespan, minimizing the necessity for frequent maintenance or replacement. Consequently, they represent a dependable option for the irrigation of golf courses, where a continuous and efficient water supply is imperative for sustaining healthy turf and landscaping.

Q:Can ductile iron pipe be recycled?: Yes, ductile iron pipe can be recycled. It is a highly recyclable material that can be melted down and reused in the production of new ductile iron products. Recycling ductile iron pipe helps reduce waste and conserves natural resources.

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