ductile iron pipe china 5.7M

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Quick Details

Place of Origin:China (Mainland)
Model Number:DN80-1600
Length:6M/5.7M/NEGOTIATED
Standard:ISO2531 / EN545
Application:Potable/Sewage Water
Diameter:DN80-1600
Shape:Round
Hardness:230
Pipe Wall Thickness:standerd
Pull Strength:420
Yield (≥ MPa):300
Material:Ductile Iron
water ductile iron pipe:SO2531 / EN545 DI pipe

Packaging & Delivery

Delivery Detail:	30-45 days

Specifications

ductile iron pipe:
1. DN80-DN1600mm (T-Type, Class K9)
2.effective length 6m/pc
3.comply with ISO2531/EN545/EN598

Company Profile

CNBM International Corporation is the leading production base and renowned supplier of Ductile Iron Water Pipe systems of both potable and waste water in China. We are constantly looking to develop high quality products to ensure the longest service life and wonderful performance.

CNBM Pipelines regard quality as the essential factor leading to successful business. Every ductile iron pipe is tested in accordance with BS EN545 (water application) or BS EN598 (sewer application). CNBM Pipelines products comply with and are tested according to the relevant European and International Standards. Our pipes are manufactured under the quality management system BS EN ISO 9001. After years of efforts, CNBM Pipelines has built up great reputation in terms of quality and service among customers worldwide.

Product Introduction

CNBM ductile iron pipe ranges from DN80-DN1600mm (Tyton, T-Type, Class K7/K8/K9), effective length: 6m, complying with ISO2531and EN545 standards.

Specification& Payment terms

Internal lining: ductile iron pipes shall have an internal cement mortar lining in acc with ISO4179.

External coating: ductile iron pipes shall be externally coated with metallic zinc spray plus a further layer of resin painting to ISO8179.

Gasket: 100% SBR/NBR/EPDM rubber gasket in accordance with ISO4633.

Packing: ductile iron pipes from DN100 to DN300 be bundled with steel belts, others are in bulk.

Payment term: L/C, T/T.
Packing: In bulk vessel or in container

Q:Can ductile iron pipe be used for industrial process piping?: Indeed, industrial process piping can make use of ductile iron pipe. Renowned for its robustness, longevity, and ability to withstand corrosion, ductile iron pipe proves itself as an appropriate selection for diverse industrial functions. It boasts the capability to manage high-pressure systems and commonly finds application in sectors like water and wastewater treatment, oil and gas, chemical processing, and power generation. Moreover, ductile iron pipe offers ease of installation and an extensive lifespan, thus rendering it a cost-efficient choice for industrial process piping.

Q:How are ductile iron pipes made?: The manufacturing of ductile iron pipes involves a specific process called centrifugal casting. In this process, molten iron is poured into a rotating mold, typically made of steel. The rotation of the mold creates centrifugal force, which evenly distributes the molten iron, resulting in high-quality pipes. To start the manufacturing process, a mixture of scrap iron, steel, and recycled material is melted at extremely high temperatures in a furnace. Once the molten iron reaches the desired temperature and consistency, it is ready to be cast into pipes. To prevent the molten iron from cooling too quickly, the rotating mold is preheated. This preheating also contributes to achieving a smooth surface finish on the pipes. The molten iron is then poured into the rotating mold through a central sprue. As the mold spins, centrifugal force forces the molten iron against the inner walls of the mold. This rapid solidification results in dense, strong, and corrosion-resistant pipes. The centrifugal force also helps remove 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 undergo various tests to ensure they meet the required quality standards. These tests include checking dimensions, mechanical properties, and surface finish. After passing the quality tests, ductile iron pipes are typically coated with a protective lining to prevent corrosion and extend their lifespan. The type of lining used, such as cement mortar, epoxy, or polyethylene, depends on the intended application of the pipes. In conclusion, the centrifugal casting process is utilized to manufacture ductile iron pipes. This process ensures the production of high-quality pipes that are strong, corrosion-resistant, and have a smooth surface finish.

Q:Can ductile iron pipes be used in contaminated soil conditions?: Yes, ductile iron pipes can be used in contaminated soil conditions. Ductile iron is known for its strength and durability, making it resistant to corrosion and damage from external factors such as soil contaminants. Additionally, ductile iron pipes have been successfully used in a variety of challenging environments, including contaminated soils, where they can provide reliable and long-lasting underground infrastructure for the transportation of water and other fluids.

Q:What are the typical pressure surge protection measures for ductile iron pipe?: There are several typical pressure surge protection measures for ductile iron pipe that help ensure its integrity and longevity. These measures include: 1. Surge tanks: Surge tanks are commonly used to absorb pressure surges and minimize their impact on the ductile iron pipe. These tanks are typically installed at critical points in the pipeline system, such as at pump stations or near valves, to provide a reservoir for excess pressure. 2. Air release valves: Air release valves are essential components in ductile iron pipe systems that help release trapped air and prevent the formation of air pockets. These valves help maintain a stable pressure within the pipe and reduce the risk of pressure surges during operation or sudden changes in flow. 3. Pressure relief valves: Pressure relief valves are designed to protect ductile iron pipes by releasing excess pressure when it exceeds a predetermined threshold. These valves are typically installed at strategic locations in the pipeline system and are set to open when the pressure exceeds a safe limit, diverting the excess pressure to prevent damage to the pipe. 4. Surge suppressors: Surge suppressors are devices that are installed in ductile iron pipe systems to absorb and dissipate pressure surges. These devices act as shock absorbers, reducing the impact of pressure fluctuations and preventing damage to the pipe. Surge suppressors are particularly effective in situations where pressure surges are frequent or severe. 5. Pipe wall thickness: Another crucial measure for pressure surge protection in ductile iron pipe is ensuring an appropriate pipe wall thickness. By selecting a pipe with the correct wall thickness, engineers can ensure that the pipe can withstand the pressure surges it may encounter during operation. This helps prevent pipe failure or rupture due to excessive pressure. It is important to note that the specific pressure surge protection measures implemented for ductile iron pipe may vary depending on the specific application, pipe size, operating conditions, and regulatory requirements. Consulting with experts in pipeline engineering and design is crucial to determine the most suitable pressure surge protection measures for a particular ductile iron pipe system.

Q:Why is the cast iron tube lined with cement? Under what circumstances are ductile iron pipes lined with cement, and under what circumstances do not have to be lined with cement?: The cement lining protects the water quality, reduces the head loss and improves the service life of the spheroidal graphite pipe. As long as the water delivery hose is used, the cement lining must be used. There is no lining cement for conveying air.

Q:Can ductile iron pipes be used for road and highway drainage?: Yes, ductile iron pipes can be used for road and highway drainage. Ductile iron pipes have excellent strength and durability, making them suitable for handling the heavy loads and traffic associated with road and highway drainage systems. Additionally, they have high resistance to corrosion and provide a smooth internal surface, minimizing the chances of blockages and ensuring efficient water flow.

Q:What is the difference between cast iron pipe and seamless steel pipe and galvanized steel pipe?: Cast iron pipe: cast pipe made of cast iron. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings. Labor intensity is small. According to the casting method, it is divided into continuous cast iron pipe and centrifugal cast iron pipe, in which the centrifugal cast iron pipe is divided into sand mould and metal type two kinds. Divided into gray cast iron pipe and nodular cast iron pipe according to different material. According to the interface form, it is divided into flexible interface, flange interface, self anchored interface, rigid interface and so on. Among them, the flexible iron pipes rubber sealing ring; flange interface cast iron pipe flange fixed in the rubber pad, the flange gasket sealing; rigid interface cast iron pipe socket is large, straight pipe is inserted, sealed with cement, this technology has been basically eliminated.

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, wall thickness, and type of joint used. However, in general, ductile iron pipes are designed to have a joint deflection capability of up to 5 degrees for restrained joints and up to 10 degrees for flexible joints.

Q:How do ductile iron pipes handle water hammer in high-rise buildings?: Ductile iron pipes are known for their durability and strength, making them an excellent choice for handling water hammer in high-rise buildings. Water hammer is a common phenomenon that occurs when the flow of water in a pipe is suddenly stopped or changed direction, resulting in a pressure surge. This can cause significant stress on the pipes and potentially lead to damage or failure. Ductile iron pipes are designed to withstand high-pressure situations, making them highly resistant to water hammer. They have a high tensile strength and can handle the sudden changes in pressure without deforming or fracturing. This is particularly important in high-rise buildings where the water supply needs to be delivered to various floors with different pressures. Moreover, ductile iron pipes have excellent corrosion resistance properties, which further enhances their ability to handle water hammer. Corrosion can weaken pipes over time and make them more susceptible to failure during pressure surges. However, the corrosion resistance of ductile iron pipes ensures that they remain structurally sound even in high-pressure situations. Additionally, the flexibility of ductile iron pipes allows them to absorb and dissipate the energy generated by water hammer. This helps to minimize the impact on the overall system and reduce the potential for damage. The ability to absorb energy also helps to reduce noise and vibrations associated with water hammer, creating a more comfortable and efficient water supply system. In conclusion, ductile iron pipes are well-equipped to handle water hammer in high-rise buildings. Their strength, corrosion resistance, and flexibility make them a reliable choice for delivering water under varying pressures without compromising the integrity of the system.

Q:How do ductile iron pipes handle ground settlement near construction foundations?: Ductile iron pipes are renowned for their effectiveness in handling ground settlement near construction foundations. Their flexible nature enables them to withstand ground movement without suffering severe damage or failure. When the ground settles near construction foundations, it exerts pressure on the surrounding infrastructure, potentially causing shifts in the soil. Ductile iron pipes have the advantage of absorbing and distributing this pressure, minimizing the risk of pipe breakage or deformation. A significant factor contributing to the resilience of ductile iron pipes is their high tensile strength. This strength enables the pipes to maintain their structural integrity even under substantial external forces. Consequently, they can endure ground settlement without experiencing fractures or cracks. Moreover, ductile iron pipes possess a high level of flexibility. This flexibility allows them to adapt to minor ground movements and accommodate shifts in the soil without compromising their functionality. The pipes can bend slightly without breaking or causing leaks, ensuring a continuous flow of fluids and preventing disruptions to the construction project. Additionally, ductile iron pipes are commonly installed with appropriate bedding and backfill materials. This ensures that the pipes have a stable and secure foundation, minimizing the risk of movement and settlement. The use of these materials also helps distribute the load exerted on the pipes more evenly, further enhancing their ability to handle ground settlement. All in all, ductile iron pipes are an excellent choice for construction projects that involve concerns about ground settlement. Their strength, flexibility, and proper installation techniques allow them to effectively handle ground movement near construction foundations, resulting in reliable and long-lasting infrastructure.

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