DUCTILE IRON PIPE DN400 K7 CLASS

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 30000Tons m/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Mechnical Joint K Type Ductile Iron Pipe

Self-restrained Joint Ductile Iron Pipe

Flange Pipe

Ductile Iron Pipe Mechnical Joint K Type

Ductile Iron Pipe Self Anchor Type

Ductile Iron Pipe DN300

DUCTILE IRON PIPE DN500 K8

Ductile Iron Pipes of China on Chip Price DN400 EN545/EN598/ISO2531

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: Are ductile iron pipes susceptible to external loading or pressure?: Ductile iron pipes, just like any other material, are susceptible to external loading or pressure. They possess a certain level of strength and tolerance to endure external forces. However, excessive external loading or pressure can result in the deformation or failure of these pipes. To avoid any harm caused by external loading, it is crucial to ensure proper installation and support of ductile iron pipes. Furthermore, the design and engineering of the pipeline system should take into account the expected external loading and pressure to guarantee the pipes' effectiveness in handling the anticipated conditions. Regular inspections and maintenance play a vital role in detecting and resolving issues associated with external loading or pressure that may arise over time.

Q: Can ductile iron pipes be used for water tunnel crossings?: Yes, ductile iron pipes can be used for water tunnel crossings. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them a suitable choice for various applications, including water tunnel crossings. They are capable of withstanding high pressure, external loads, and ground movements, which are often encountered in tunnel crossings. Additionally, ductile iron pipes have a long service life and require minimal maintenance, making them a cost-effective solution for water tunnel crossings.

Q: What is the expected hydraulic efficiency of ductile iron pipes?: Several factors, including pipe diameter, roughness of the pipe surface, flow rate, and length of the pipe, can affect the expected hydraulic efficiency of ductile iron pipes. However, it is generally acknowledged that ductile iron pipes exhibit exceptional hydraulic efficiency. Ductile iron pipes possess an inner surface that is smooth, thereby reducing frictional losses and facilitating efficient water flow. The smoothness of the pipe surface serves to minimize energy losses caused by turbulence and resistance. Furthermore, ductile iron pipes are engineered to maintain a consistent and uniform internal diameter, which further enhances their hydraulic efficiency. Research has demonstrated that hydraulic efficiencies of ductile iron pipes can range from 85% to 95%. This indicates that a significant portion of the energy inputted into the system is effectively transferred to the water, resulting in minimal losses. It should be noted that the hydraulic efficiency of ductile iron pipes can be influenced by factors like corrosion, scaling, and sediment accumulation over time. Regular maintenance and appropriate cleaning procedures can help preserve the hydraulic efficiency of ductile iron pipes. In summary, ductile iron pipes are widely regarded for their high hydraulic performance and are extensively utilized in water distribution systems due to their ability to convey water with minimal energy losses.

Q: Can ductile iron pipes be used in acidic environments?: Yes, ductile iron pipes can be used in acidic environments. Ductile iron pipes have a high resistance to corrosion, making them suitable for various applications including acidic environments. The high carbon content in ductile iron pipes creates a protective layer on the surface of the pipe, preventing the acid from directly attacking the iron. Additionally, the inner lining of the pipe can be coated with epoxy or other protective materials to further enhance its resistance to corrosion in acidic conditions. However, it is important to consider the specific concentration and type of acid present in the environment, as certain acids may still cause corrosion over time. Consulting with experts or manufacturers is recommended to ensure appropriate material selection for specific acidic environments.

Q: Ductile iron pipe connection mode: Jack painted on the outer surface and rubber lubricant: lubricant evenly installed ring inner surface, outer surface coating in the socket to socket socket parts lubricant line all the brush in the socket.

Q: How does ductile iron pipe compare to PVC pipe in terms of strength?: Ductile iron pipe is generally considered to be stronger than PVC pipe. Ductile iron pipe is made of iron and carbon, which gives it a high tensile strength and resistance to breakage. It can withstand high pressures and is commonly used in heavy-duty applications such as water mains, sewer lines, and industrial piping. On the other hand, PVC pipe is made of a plastic material called polyvinyl chloride. While PVC pipe is lightweight and easy to handle, it is not as strong as ductile iron pipe. PVC pipe is typically used in low-pressure applications such as household plumbing, irrigation systems, and drainage pipes. When comparing the strength of ductile iron pipe to PVC pipe, the former has a higher capacity to handle heavy loads, withstand ground movement, and resist damage from external factors like rocks or tree roots. Ductile iron pipe is also more durable and has a longer lifespan compared to PVC pipe. However, it is important to note that the choice between ductile iron pipe and PVC pipe ultimately depends on the specific requirements of the project. Factors such as cost, environmental conditions, installation ease, and required longevity should all be taken into consideration when deciding which type of pipe to use.

Q: What is the expected hoop stress capacity of ductile iron pipes?: The expected hoop stress capacity of ductile iron pipes can vary depending on various factors such as the pipe's diameter, wall thickness, and material grade. However, in general, ductile iron pipes have a high level of strength and durability, making them capable of withstanding significant hoop stress. Ductile iron pipes are designed and manufactured to meet specific standards and requirements, such as the American Water Works Association (AWWA) C151 and C115 standards. These standards ensure that the pipes have sufficient strength to handle the anticipated loads and pressures they may encounter during their service life. The hoop stress capacity of ductile iron pipes is primarily determined by their tensile strength. Ductile iron is a type of cast iron that has been treated to exhibit ductility, meaning it can withstand tensile stress without fracturing. This property makes it suitable for applications where the pipes may experience internal or external pressure, such as water distribution systems or sewer lines. To determine the expected hoop stress capacity, engineers typically perform calculations based on the specific pipe dimensions, material properties, and the expected operating conditions. These calculations consider factors such as the internal pressure, external loads, and the safety factors required by the applicable design standards. It is important to note that the expected hoop stress capacity of ductile iron pipes should always be verified using the manufacturer's specifications and engineering calculations. Additionally, any modifications or repairs to the pipes should be performed by qualified professionals in accordance with industry guidelines to ensure their continued strength and performance.

Q: How do ductile iron pipes handle differential settlement?: Ductile iron pipes have the ability to handle differential settlement due to their inherent flexibility and strength. The material's ductility allows the pipes to withstand minor ground movements and settlement without causing significant damage or failure. The pipes can flex and adjust to the changing ground conditions, reducing the risk of cracks or breaks. Additionally, the inherent strength of ductile iron pipes helps distribute the load evenly, minimizing the impact of settlement on the overall integrity of the pipeline system.

Q: How are ductile iron pipes protected against external damage?: Ductile iron pipes are protected against external damage through a combination of various protective measures. One common method used is the application of a protective coating on the external surface of the pipe. This coating acts as a barrier, preventing the direct contact of the pipe with corrosive elements in the surrounding environment. The coating can be made of materials such as epoxy, polyurethane, or zinc, which provide excellent resistance against corrosion, abrasion, and chemical attacks. Additionally, ductile iron pipes can be further protected by encasing them in a concrete or cement mortar lining. This lining provides an extra layer of protection, reducing the chances of physical damage due to external impacts or soil movement. The concrete or cement mortar lining also helps to improve the pipe's hydraulic performance by reducing friction and maintaining a smooth flow of water or other fluids. Furthermore, ductile iron pipes are often installed with proper bedding and backfilling techniques. This involves using suitable materials such as sand or gravel to support and stabilize the pipe, minimizing the risk of external damage caused by uneven ground settlement or heavy loads. Adequate compaction of the backfill material is crucial to ensure the long-term integrity and stability of the pipe. Regular inspection and maintenance are also essential for protecting ductile iron pipes against external damage. Periodic inspections can identify any signs of corrosion, coating degradation, or physical damage, allowing for timely repairs or replacement before significant issues arise. Additionally, proper cathodic protection systems can be employed to prevent corrosion by applying an electric current that counteracts the electrochemical reactions occurring on the pipe's surface. In summary, ductile iron pipes are protected against external damage through the application of protective coatings, concrete or cement mortar linings, proper bedding and backfilling techniques, and regular inspections and maintenance. These measures collectively ensure the durability, longevity, and reliable performance of ductile iron pipes in various environments and applications.

Q: How do ductile iron pipes handle seismic movements?: Ductile iron pipes are designed to withstand seismic movements due to their inherent flexibility and high tensile strength. The material's ductility allows it to bend and deform without fracturing, making it more resistant to stress and strain caused by seismic activity. Additionally, the pipes are typically installed with flexible joints that can absorb and accommodate the movement, further reducing the risk of damage or failure during earthquakes. Overall, ductile iron pipes are a reliable choice for underground infrastructure in seismic-prone areas.

Send your message to us

*Email

*TEL

*Quantity

*Unit