DUCTILE IRON PIPE C Class DN 400

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

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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:Can ductile iron pipes be used for large-scale irrigation systems?: Yes, ductile iron pipes can be used for large-scale irrigation systems. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for various applications including irrigation. These pipes are able to withstand high pressure and can handle the demands of large-scale irrigation systems. Additionally, ductile iron pipes have a long lifespan, reducing the need for frequent replacements and maintenance. They are also cost-effective compared to other materials used in irrigation systems. Therefore, ductile iron pipes are a suitable choice for large-scale irrigation systems due to their strength, durability, corrosion resistance, and cost-effectiveness.

Q:What is the difference between a PE fire hose and a ductile iron pipe?: Seamless steel pipe: a pipe with a hollow cross section, used as a conduit for transporting fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.

Q:Disadvantages of ductile iron pipes: Compared with cast iron, ductile iron has an absolute advantage in strength. The tensile strength of ductile iron is 60K, while the tensile strength of cast iron is only 31k. The yield strength of ductile iron is 40K, while the cast iron does not show yield strength, and eventually breaks. The strength to cost ratio of ductile iron is far superior to that of cast iron.

Q:Ductile iron pipe length is generally much: The water-cooled metal ductile iron pipe has a single length of 6 meters, and the current mainstream ductile tubes are water-cooled metal ductile iron pipes.

Q:Can ductile iron pipes be used for above-ground installations?: Yes, ductile iron pipes can be used for above-ground installations. Ductile iron is a type of cast iron that has higher tensile strength and flexibility, making it suitable for a variety of applications including above-ground installations. It is commonly used for water distribution systems, sewage systems, and industrial pipelines. Ductile iron pipes are resistant to corrosion, withstand high pressure and temperature, and have a long lifespan. They are also available in various sizes and can be easily connected using different joint types. However, it is important to ensure proper support and protection against external factors such as sunlight and impact to prevent any potential damage.

Q:How does ductile iron pipe compare to steel pipe in terms of durability?: Ductile iron pipe and steel pipe both have their own unique characteristics, but in terms of durability, ductile iron pipe has several advantages over steel pipe. Firstly, ductile iron pipe is highly resistant to corrosion. It has a protective layer of zinc or cement lining that prevents rust and corrosion, making it more durable and less prone to leaks or failures. On the other hand, steel pipe is susceptible to corrosion, especially when exposed to moisture or certain chemicals. This can lead to structural issues and decrease its overall durability. Secondly, ductile iron pipe has excellent impact resistance. It can withstand heavy loads and external pressures without cracking or breaking. This makes it suitable for applications in areas with high traffic or where the pipe may be subject to accidental impacts. Steel pipe, although strong, can be more brittle and prone to fractures under similar conditions. Additionally, ductile iron pipe has a longer service life compared to steel pipe. It has been known to last for over 100 years with proper maintenance, making it a reliable and durable choice for infrastructure projects. Steel pipe, while still durable, may require more frequent inspections and maintenance to ensure its longevity. Overall, ductile iron pipe surpasses steel pipe in terms of durability due to its corrosion resistance, impact resistance, and longer service life. However, the choice between the two ultimately depends on the specific application, budget, and other project requirements.

Q:How is ductile iron pipe tested for quality?: Ductile iron pipe is extensively tested for quality to ensure its performance and reliability in various applications. The testing process involves several steps to assess the physical and mechanical properties of the pipe. One of the primary tests conducted on ductile iron pipe is the hydrostatic pressure test. This test involves subjecting the pipe to fluid pressure higher than its designed operating pressure to determine its ability to withstand internal pressure without leakage or failure. The pipe is filled with water or another suitable fluid, and pressure is gradually increased to the required level. The pipe is inspected for any signs of leakage or deformation during this test. Another crucial test is the tensile strength test, which measures the pipe's ability to resist pulling or stretching forces. A sample of the pipe is pulled until it breaks, and the maximum force applied during the test is recorded. This test helps determine the pipe's ultimate tensile strength, yield strength, and elongation properties. Ductile iron pipe is also tested for its impact resistance through the Charpy test. This test involves striking a notched sample with a swinging pendulum to measure the amount of energy absorbed by the pipe. It helps assess the pipe's ability to withstand sudden impacts or loads without fracturing. Additionally, the pipe undergoes various non-destructive tests, including ultrasonic testing, magnetic particle inspection, and visual inspection. These tests help detect any internal or external defects, cracks, or abnormalities that may affect the pipe's structural integrity. Furthermore, chemical analysis and metallographic examination are performed to evaluate the chemical composition and microstructure of the ductile iron pipe. These tests ensure that the pipe meets the required specifications and standards for its intended application. Overall, the testing process for ductile iron pipe is comprehensive and rigorous, aiming to guarantee its quality, durability, and overall performance in delivering water, wastewater, or other fluids safely and efficiently.

Q:Are ductile iron pipes resistant to soil movement?: Indeed, soil movement poses no threat to ductile iron pipes. These pipes boast an impressive tensile strength, enabling them to withstand external forces like soil movement. Specifically engineered for flexibility, they possess the ability to absorb and distribute stresses stemming from ground settlement or other soil movements. Moreover, their robust construction allows them to resist the compressive forces exerted by the surrounding soil. Consequently, ductile iron pipes represent a dependable and enduring option for underground pipelines, ensuring long-term stability and safeguarding against soil movement.

Q:How do ductile iron pipes handle soil erosion?: Ductile iron pipes are highly resistant to soil erosion due to their robust construction and inherent strength. The pipes' durable and flexible nature allows them to withstand the impact of soil movement and erosion without significant damage. Moreover, the corrosion-resistant coatings applied to ductile iron pipes further enhance their ability to resist erosion caused by soil particles and other corrosive elements. Overall, ductile iron pipes provide a reliable and long-lasting solution for handling soil erosion in various applications.

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