DUCTILE IRON PIPEs K9 CLASS DN100

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 20 pc

Supply Capability:: 3000 pc/month

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Specifications

Subsidiary of Forbes Fortune 500 company (Ranking 485th in 2011). Provides full rang of ductile iron pipes with finest quality.

Company Profile

CNBM International Corporation belongs to China National Building Material Group Corporation (CNBM Group), ranking 365th in Forbes world Fortune 500 companies of 2012, and one of the largest state-owned companies in China since 1984. CNBM International was founded to provide sales support to international customers for the CNBM family of plants.

CNBM DIP Division is specialized in manufacturing high quality ductile iron potable / sewage water pipeline products in China. Ductile iron and cast iron pipe, fittings, valves, hydrants and drainage products are our main products, and orders are now shipped all over the world.

Our aim is to become an world-class influential supplier and professional service provider in world water industry.

Q: Can ductile iron pipes be used for underground fire hydrant systems?: Yes, ductile iron pipes can be used for underground fire hydrant systems. Ductile iron pipes are known for their strength and durability, making them suitable for underground applications. They have excellent resistance to corrosion and can withstand high pressures, which are essential requirements for fire hydrant systems. Additionally, ductile iron pipes have a long service life, reducing the need for frequent replacements and maintenance, making them a cost-effective choice for fire hydrant systems.

Q: What are the different types of ductile iron pipe joints?: Various applications commonly utilize different types of ductile iron pipe joints to ensure efficient fluid transfer and prevent leaks. These joints provide strong and reliable connections between pipes. Some of the most frequently used types of ductile iron pipe joints are as follows: 1. Push-on Joint: This joint is simple to install and does not require any special tools. The spigot end of one pipe is inserted into the bell end of another pipe, creating a tight seal. A rubber gasket is typically used to enhance leak resistance. 2. Mechanical Joint: Water and wastewater applications often use mechanical joints. They consist of a gland, a rubber gasket, and a follower gland. The pipe ends are pushed into the gland, and the follower gland is tightened, compressing the rubber gasket and establishing a secure connection. 3. Restrained Joint: These joints are designed to withstand high internal and external forces, such as water pressure or soil loadings. Rubber gaskets and restraining mechanisms like bolts or wedges are commonly used to prevent pipe movement or separation under stress. 4. Flanged Joint: Large diameter pipes or applications requiring frequent disassembly often employ flanged joints. Each pipe end is equipped with a flange, which is then bolted together with gaskets to create a strong connection. Flanged joints provide convenient access for maintenance or repairs. 5. Welded Joint: Welded joints involve heating and fusing the pipe ends to form a permanent connection. This type of joint is typically used in high-pressure applications where a reliable and leak-free connection is crucial. Skilled labor and specialized equipment are required for welded joints. To ensure the integrity and longevity of the ductile iron pipe system, it is important to choose the appropriate joint based on the specific application, pipe size, and operating conditions. Consulting with a professional engineer or pipe manufacturer can help determine the most suitable joint for a particular project.

Q: Does the cast iron pipe need separate corrosion protection?: The pipe has been antirust in the production process and can be used directly

Q: Ductile iron pipes lined with cement mortar in the water (living water, water in the 6.9-7.3) in the early pH, why pH increased? How to solve this problem?: 1, because of the bone in mortar, such as silicate products, there will be silicification reaction, in addition, there is the reaction of limestone in lime.2, cement mortar lining cover coating, that is, spray some paint! Some questions four are unavoidable

Q: Can ductile iron pipes be used in areas with high soil acidity and alkalinity?: Yes, ductile iron pipes can be used in areas with high soil acidity and alkalinity. Ductile iron is highly resistant to corrosion and can withstand extreme pH levels, making it suitable for such environments.

Q: How do ductile iron pipes handle water hammer?: Ductile iron pipes are known for their excellent resistance to water hammer, which refers to the sudden increase in pressure and velocity of water flow within a pipe system. This phenomenon occurs when there is a sudden change in the water's velocity, such as when a valve is closed abruptly or a pump is suddenly shut off. Ductile iron pipes are designed to withstand high-pressure surges caused by water hammer. Their enhanced strength and flexibility enable them to absorb and dissipate the energy generated during these pressure surges. The ductility of the material allows the pipe to deform slightly under the impact of the water hammer, preventing the pipe from rupturing or breaking. Moreover, ductile iron pipes have inherent damping properties, which means they can absorb and dissipate the energy of water hammer more effectively compared to other pipe materials. This helps to reduce the intensity and duration of the pressure surges, minimizing the potential damage to the pipe system and its components. Additionally, ductile iron pipes are often equipped with various fittings and accessories that further enhance their ability to handle water hammer. These include specialized joint designs, such as restrained joints or flexible couplings, which provide additional flexibility and resistance to pressure surges. Overall, ductile iron pipes are specifically engineered to handle the challenges posed by water hammer. Their strength, flexibility, damping properties, and specialized fittings make them an ideal choice for applications where water hammer is a concern, providing a reliable and durable solution for water distribution systems.

Q: What is the content of silicon in silicon molybdenum ductile iron?: Customers generally give a wide range, most of the national standard "reference" the United States of similar brands suspected. Especially 3.75-4.25% Si too big. We can narrow the scope according to their actual situationHowever, the high Si content of the end we can pregnant before Si% and several birth control adjustment. I personally think that many times easy inoculation, increased nucleation; more than 517 in terms of strength, the lower the content of Mn, some clients request F content in more than 95%, but do not worry about the intensity of the problem, even if the F matrix as long as the components of control will be above 517. Spheroidizer we can choose good quality, spheroidization time have good control over 60S,

Q: How long do ductile iron pipes last?: Ductile iron pipes are known for their durability and long lifespan. On average, these pipes can last anywhere between 80 to 100 years, with some even lasting up to 150 years. The longevity of ductile iron pipes is attributed to their robust construction, which enables them to withstand high-pressure environments, resist corrosion, and endure extreme weather conditions. Additionally, ductile iron pipes have a proven track record of reliability and performance, making them a popular choice for water and wastewater infrastructure projects worldwide. Regular inspection and maintenance can further extend the lifespan of ductile iron pipes, ensuring their continued service for many decades.

Q: Are ductile iron pipes resistant to freeze-thaw cycles?: Yes, ductile iron pipes are generally resistant to freeze-thaw cycles. Their high tensile strength and flexibility allow them to withstand the expansion and contraction caused by freezing and thawing without significant damage. However, proper installation and maintenance practices should still be followed to ensure long-term durability.

Q: How do ductile iron pipes handle pipe deflection?: Ductile iron pipes possess exceptional strength and flexibility, enabling them to effectively handle pipe deflection. Pipe deflection, referring to the bending or curving of a pipe from its original straight alignment, is easily managed by ductile iron pipes. When external forces such as soil movement or heavy loads are applied, ductile iron pipes possess the ability to flex and adapt without fracturing or breaking. This remarkable capability is a result of their unique composition, which includes nodular graphite inclusions that provide excellent ductility. The flexibility of ductile iron pipes allows for the absorption and even distribution of stress along the pipe wall, preventing concentrated points of strain that could lead to failure. This characteristic enables the pipes to accommodate ground movement, settlement, and other external factors that may result in deflection. Moreover, ductile iron pipes possess a high modulus of elasticity, ensuring they can endure significant deformation before reaching their ultimate limit. This property ensures the pipes maintain their structural integrity even when subjected to substantial deflection. Additionally, the joint system utilized in ductile iron pipe installations contributes to their ability to handle pipe deflection. The restrained joint design guarantees a tight and secure connection between pipe sections, reducing the potential for joint separation or leakage caused by deflection-induced stress. All in all, ductile iron pipes exhibit excellent resistance to pipe deflection. Their flexibility, high modulus of elasticity, and dependable joint system make them the preferred choice for a wide range of applications, including water distribution, wastewater management, and sewer systems.

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