DUCTILE IRON PIPE C DN350

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 30000Tons m/month

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CNBM ductile iron pipe ranges from DN80-DN1600mm (T-Type, Class K9), effective length 6m, comply with ISO2531 Standard

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 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 BS EN545/EN598/ISO2531/BS4772.

Specification& Payment terms

Internal lining: Pipes shall have an internal cement mortar lining in acc with ISO4179.

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

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

Packing: Pipes from DN100 to DN300 be bundled with steel belts, the others are in bulk.

Payment term: By 30% T/T advance payment + 70% Irrevocable L/C at sight.
Packing: In bulk vessel or in container.

Q: How is ductile iron pipe different from cast iron pipe?: Ductile iron pipe and cast iron pipe are commonly used in plumbing and drainage applications, but they have differences in composition, strength, and flexibility. To begin with, ductile iron pipe is made from a different iron alloy than cast iron pipe. Ductile iron contains more carbon and silicon, which gives it increased strength and durability. On the other hand, cast iron pipe is made from gray iron, which has higher carbon content but lacks the flexibility of ductile iron. Moreover, ductile iron pipe is renowned for its superior strength and resistance to impact. It can withstand higher pressures and is less likely to crack or break under heavy loads or external forces. Cast iron pipe, although strong, is more brittle and prone to fractures and failures. Another significant distinction is the flexibility of ductile iron pipe. It possesses greater flexibility and can endure bending and deformation without fracturing. This flexibility facilitates easier installation, particularly in areas with uneven terrain or where ground movement may occur. In contrast, cast iron pipe is less flexible and more rigid, making it unsuitable for applications that require flexibility. Additionally, ductile iron pipe has a smoother interior surface compared to cast iron pipe. This smoothness reduces friction, enhances flow efficiency, and minimizes the accumulation of sediment and deposits within the pipe, resulting in improved water flow and reduced maintenance needs. In conclusion, ductile iron pipe sets itself apart from cast iron pipe due to its composition, strength, flexibility, and smooth interior surface. Ductile iron offers superior strength, impact resistance, and flexibility, making it the preferred choice in various plumbing and drainage applications.

Q: How do ductile iron pipes handle traffic vibrations?: Ductile iron pipes possess exceptional strength and durability, making them highly effective in managing traffic vibrations. Their inherent properties enable them to withstand fractures or cracks caused by external forces, such as vibrations induced by traffic. The pipes' remarkable tensile strength and elasticity allow them to absorb and dissipate the energy produced by traffic vibrations. This capability minimizes the impact on the pipes and prevents significant damage or failure. Moreover, the material's ductility enables it to deform slightly under stress without breaking, further enhancing its ability to endure vibrations. Additionally, ductile iron pipes exhibit superior resistance to corrosion and other forms of deterioration. This resistance guarantees the pipes' structural integrity over an extended period, even when subjected to repetitive vibrations caused by heavy traffic. In conclusion, ductile iron pipes are well-suited to handle traffic vibrations due to their robust nature, capacity to absorb energy, and resistance to corrosion. These characteristics establish them as a dependable choice for underground infrastructure in areas with high traffic volumes, ensuring a pipeline system that is durable and efficient in the long run.

Q: What are the different methods for anchoring ductile iron pipe?: There are several methods available for anchoring ductile iron pipe, depending on the specific application and requirements. 1. Thrust Blocks: This method involves constructing concrete blocks around the pipe at points where there are changes in direction or changes in pipe diameter. The blocks provide resistance against the thrust forces generated by the flowing water, preventing movement of the pipe. 2. Concrete Collars: Concrete collars or rings can be installed around the pipe at regular intervals to provide additional support and prevent lateral movement. These collars are typically made by pouring concrete into a pre-made mold around the pipe. 3. Pipe Clamps: Pipe clamps are metal brackets that can be attached to the pipe and anchored to a structure or a support system. These clamps come in various sizes and designs, providing flexibility in installation and allowing for adjustment as needed. 4. Pipe Restraints: Pipe restraints are devices specifically designed to restrain the movement of ductile iron pipe. They usually consist of a metal band or collar that is tightened around the pipe and attached to a concrete structure or an anchoring system. 5. Bell and Spigot Joint: The bell and spigot joint itself can act as a means of anchoring the pipe. The bell end of one pipe fits over the spigot end of another, creating a tight connection that helps resist movement. 6. Soil Embedment: Properly compacted soil surrounding the pipe can provide some level of anchoring. The soil should be compacted in layers around the pipe to ensure stability and prevent movement. It is important to note that the selection of the anchoring method depends on factors such as soil conditions, pipe diameter, operating pressure, and location. Consulting industry standards and guidelines, along with the assistance of a qualified engineer, is crucial in determining the appropriate anchoring method for a specific ductile iron pipe installation.

Q: How long does the cast iron pipe of indoor direct buried sewage need to be examined?: Cast iron pipe, cast cast pipe. 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.

Q: How are leaks repaired in ductile iron pipe?: Leak repairs in ductile iron pipes vary depending on the severity and location of the leak. One technique commonly used involves the application of epoxy-based sealants or leak repair clamps. For small leaks, epoxy sealants are commonly utilized. A specialized epoxy compound is applied to the leaking area, which then hardens and forms a durable seal. The epoxy is carefully spread on the pipe's surface, covering the leak and any surrounding damage. This method effectively addresses small leaks and offers a long-lasting solution. In cases where the leak is larger or more severe, leak repair clamps are often utilized. These clamps secure tightly around the pipe using rubber gaskets and bolts to provide a mechanical seal. The clamp's pressure compresses the gasket onto the pipe, creating a watertight seal and preventing further leakage. Leak repair clamps come in various sizes to accommodate different pipe diameters. Proper preparation of the pipe surface is crucial before applying either repair method. The area around the leak must be thoroughly cleaned and dried to ensure good adhesion of the epoxy or proper sealing with the clamp. It is also essential to adhere to the manufacturer's instructions and guidelines for the chosen repair method to achieve a successful and long-lasting repair. It is important to note that these repair methods are temporary solutions and may not be suitable for all situations. In cases of extensive pipe damage or aging infrastructure, it may be necessary to replace the affected pipe section entirely. It is recommended to seek professional assessment and guidance from qualified technicians or plumbers when dealing with leaks in ductile iron pipes. This ensures proper repairs and minimizes the risk of future issues.

Q: What are the different methods for restraining ductile iron pipe?: There are several different methods for restraining ductile iron pipe. These methods are used to prevent movement or displacement of the pipe due to internal pressure, external forces, or ground movement. The most common methods for restraining ductile iron pipe include: 1. Thrust blocks: Thrust blocks are concrete blocks or structures that are placed against the pipe at bends, tees, or other changes in direction. These blocks are designed to resist the forces exerted by the flowing water or other fluids within the pipe, effectively anchoring the pipe in place. 2. Mechanical restraints: Mechanical restraints, such as harnesses or clamps, are devices that are installed around the pipe and attached to a fixed structure, such as a wall or a concrete anchor. These restraints provide a physical barrier that prevents the pipe from moving or shifting. 3. Pipe restraints: Pipe restraints are devices that are directly attached to the pipe and anchored to a fixed structure. These restraints can include pipe clamps, pipe restraints, or pipe saddles. They are designed to securely hold the pipe in place and resist any movement or displacement. 4. Pipe bedding and backfill: Proper pipe bedding and backfilling is important for restraining ductile iron pipe. The pipe must be properly supported and surrounded by compacted material to prevent movement or shifting. This method involves carefully placing and compacting soil or other suitable materials around the pipe to provide stability and prevent displacement. 5. Trench walls: The walls of the trench in which the ductile iron pipe is installed can also provide some level of restraint. By properly compacting the soil against the pipe and ensuring proper compaction and stability of the trench walls, the pipe can be effectively restrained and prevented from movement. Overall, the different methods for restraining ductile iron pipe aim to ensure the pipe remains securely in place and does not experience any displacement or movement. The choice of method depends on factors such as the location, application, and the forces acting on the pipe. It is important to consult with engineers and follow industry guidelines and standards to determine the most appropriate method for restraining ductile iron pipe in specific situations.

Q: What is ductile iron?: Ductile iron is a type of cast iron that has been treated with magnesium or cerium to improve its mechanical properties. It is called "ductile" because it has a higher degree of ductility compared to other types of cast iron. Ductility refers to the ability of a material to be stretched or deformed without breaking. This characteristic makes ductile iron highly suitable for applications that require high strength and resistance to wear and tear, such as pipes, automotive components, and machinery parts. The addition of magnesium or cerium to the iron during the manufacturing process helps to form graphite in the structure, which gives ductile iron its unique properties. This graphite formation also helps to make the iron more flexible and less brittle, enabling it to absorb shock and vibration without fracturing. Overall, ductile iron offers a balance between the strength of cast iron and the flexibility of steel, making it a versatile material for various industrial applications.

Q: How is ductile iron pipe protected against external corrosion?: Ductile iron pipe is protected against external corrosion through a process called external coating. This involves applying a layer of protective coating, such as asphaltic or epoxy, on the outside surface of the pipe. The coating acts as a barrier, preventing moisture and corrosive substances from coming into contact with the iron, thus reducing the risk of corrosion. Additionally, cathodic protection methods, such as applying sacrificial anodes or using impressed current systems, may be employed to further enhance the corrosion resistance of the ductile iron pipe.

Q: Is the crankshaft material forged or ductile iron?: Cast iron can not be forged, only steel, malleable iron can not be forged, only the crankshaft is particularly hot, can not meet the strength of the hardening when forging

Q: What is the expected joint performance of ductile iron pipes?: The expected joint performance of ductile iron pipes is generally considered to be excellent. Ductile iron pipes are known for their high durability and strength, making them suitable for various applications such as water distribution, sewer systems, and industrial pipelines. One of the key aspects of joint performance in ductile iron pipes is their ability to withstand external loads and pressure. The joints in ductile iron pipes are typically designed to provide a tight and secure connection, ensuring minimal leakage and long-term structural integrity. This is achieved through various joint types, including push-on joints, mechanical joints, and restrained joints. Push-on joints are commonly used in ductile iron pipes and allow for easy installation without the need for special tools or equipment. These joints utilize a rubber gasket that provides a watertight seal, preventing any leakage. Mechanical joints, on the other hand, involve the use of mechanical devices such as bolts and nuts to create a rigid connection between the pipes. This type of joint provides additional strength and resistance against external forces. In terms of performance, ductile iron pipes have been extensively tested and proven to meet or exceed industry standards for pressure and bending strength. They have high resistance to corrosion, which ensures a long service life, and are also less susceptible to damage from ground movements or vibrations. These properties contribute to the overall joint performance of ductile iron pipes, ensuring reliable and efficient operation in various infrastructure systems. Overall, when installed and maintained properly, ductile iron pipes exhibit excellent joint performance, providing a reliable and durable solution for various applications in the water and wastewater industry.

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