DUCTILE IRON PIPE K12 DN 350

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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:Can ductile iron pipe be used for sewer and wastewater systems?: Indeed, sewer and wastewater systems can make use of ductile iron pipe. Ductile iron, a variant of cast iron, boasts enhanced attributes such as heightened durability, strength, and flexibility. These characteristics render it apt for subterranean usage, encompassing sewer and wastewater systems. Ductile iron pipes possess resistance against corrosion and are capable of enduring high-pressure circumstances, rendering them perfect for the conveyance of sewage and wastewater. Furthermore, ductile iron pipes boast an extended lifespan and necessitate minimal upkeep, thereby making them a financially prudent alternative for sewer and wastewater infrastructure.

Q:How are ductile iron pipes tested for hydrostatic pressure?: For water and wastewater applications, ductile iron pipes are widely used because of their strength and durability. To guarantee their quality and dependability, these pipes undergo hydrostatic pressure testing. The process of hydrostatic pressure testing involves applying internal pressure on the ductile iron pipes at levels higher than their normal operating pressure. This is done to evaluate their ability to withstand the maximum pressure they may encounter during their service life. To begin the testing, a sample set of pipes is carefully selected from a production batch or shipment. These samples are meticulously prepared by removing any surface coatings or debris that could affect the accuracy of the test results. The prepared samples are then placed in a specially designed test rig or test line. The test rig is equipped with all the necessary connections, valves, and gauges to accurately control and monitor the test conditions. Once the samples are secured in the test rig, water or another suitable test fluid is slowly introduced into the pipes. The pressure is gradually increased to a preset level, typically surpassing the expected operating pressure by a certain factor. This elevated pressure is maintained for a specified duration, usually several hours, to evaluate the structural integrity and leak resistance of the pipes. Throughout the test, the pipes are closely monitored for any signs of leakage, deformation, or failure. Skilled technicians or engineers observe the pressure gauges and visually inspect the pipes for any visible defects or abnormalities. Additionally, automated systems may be used to continuously record and analyze the pressure readings, ensuring accurate data collection. After the specified test duration, the pressure is gradually released, and the pipes are meticulously inspected for any permanent deformation or residual stress. This inspection may involve visual examination, dimensional measurements, or non-destructive testing techniques like ultrasonic testing or magnetic particle inspection. The test results are then assessed against the relevant industry standards or specifications to determine if the pipes comply with safety and performance requirements. If the pipes pass the hydrostatic pressure test, they are considered suitable for their intended application. However, if any issues or failures are identified, further investigation, analysis, or corrective actions may be necessary before the pipes can be approved for use. In conclusion, hydrostatic pressure testing plays a vital role in ensuring the quality and reliability of ductile iron pipes. By subjecting these pipes to rigorous testing procedures, manufacturers can provide customers with pipes that meet the highest standards of safety and performance.

Q:Are ductile iron pipes suitable for road crossings?: Yes, ductile iron pipes are suitable for road crossings. Ductile iron is a strong and durable material that can withstand heavy loads and traffic. It has high tensile strength and flexibility, making it an ideal choice for underground installations beneath roads. Additionally, ductile iron pipes are resistant to corrosion and have a long lifespan, making them a reliable option for road crossings.

Q:Are ductile iron pipes suitable for use in brewery facilities?: Yes, ductile iron pipes are suitable for use in brewery facilities. Ductile iron pipes are durable, corrosion-resistant, and can withstand high-pressure applications, making them ideal for transporting water, steam, and other fluids within brewery facilities. Additionally, the smooth interior surface of ductile iron pipes minimizes friction and prevents the build-up of sediments or organic materials, ensuring the purity and quality of the beer being produced.

Q:Are ductile iron pipes suitable for use in agricultural applications?: Yes, ductile iron pipes are suitable for use in agricultural applications. Ductile iron pipes are known for their high strength and durability, making them ideal for withstanding the heavy loads and pressures often found in agricultural operations. Additionally, they have excellent corrosion resistance, which is important in agricultural environments where pipes may be exposed to chemicals or fertilizers. Ductile iron pipes also have a long lifespan, reducing the need for frequent replacements and minimizing maintenance costs. Overall, their robust nature and ability to handle various agricultural demands make them a reliable choice for use in agricultural applications.

Q:What are the differences between cast iron pipes W and A?: W cast iron pipe is subdivided into W cast iron pipe and W1 cast iron pipe, the difference between them is the difference between the wall thickness. Because of the cold weather, the requirements for pipes are higher. The W cast iron pipes are mainly used in the north, while the W1 cast iron pipes are mainly used in the south.

Q:Are ductile iron pipes resistant to chemicals or solvents?: Ductile iron pipes are generally resistant to a wide range of chemicals and solvents. This is due to their composition, which includes a high percentage of iron and carbon, along with small amounts of other alloying elements like silicon, manganese, and magnesium. These alloying elements contribute to the overall strength and durability of ductile iron pipes, making them highly resistant to corrosion and chemical attack. However, it is important to note that the resistance of ductile iron pipes to chemicals and solvents can vary depending on the specific substance and its concentration. Some aggressive chemicals or solvents, particularly those with high acidity or alkalinity, may cause gradual corrosion or degradation of the pipe material over time. In such cases, it is advisable to consult with the pipe manufacturer or a professional engineer to ensure the compatibility of the pipe with the specific chemicals or solvents being used. Additionally, proper installation and maintenance practices play a crucial role in maintaining the chemical resistance of ductile iron pipes. Regular inspection, cleaning, and protective coatings can help to prolong the lifespan and performance of the pipes in the presence of various chemicals or solvents.

Q:How is ductile iron pipe recycled?: Ductile iron pipe is typically recycled through a process called reclamation. This involves collecting the used pipe, cleaning and removing any impurities, and then melting it down to form new ductile iron products. The recycled ductile iron can be used to manufacture various items such as new pipes, fittings, and construction materials, providing a sustainable and environmentally-friendly solution for its disposal.

Q:Can ductile iron pipe be used for nuclear power plants?: Yes, ductile iron pipe can be used for certain applications in nuclear power plants, particularly in non-safety-related systems such as cooling water, fire protection, or ancillary service pipelines. However, for safety-related systems that involve high-pressure or high-temperature conditions, materials with higher performance characteristics such as stainless steel or alloy materials are typically preferred.

Q:What is the process of fusion bonding for ductile iron pipes?: The process of fusion bonding for ductile iron pipes involves joining two or more pipes together using heat and pressure to create a strong and durable bond. This technique is particularly used in the construction and installation of underground water, sewer, and gas pipelines. The first step in the fusion bonding process is to clean and prepare the surfaces of the pipes to be joined. This involves removing any dirt, debris, or rust that may interfere with proper bonding. Specialized cleaning tools and techniques, such as wire brushing or sandblasting, are often employed to ensure a clean and smooth surface. Once the surfaces are prepared, the pipes are aligned and clamped together. A fusion bonding machine, also known as a fusion welder, is then used to apply heat and pressure to the joint area. The fusion bonding machine consists of heating elements that are positioned around the joint and a hydraulic system that applies the necessary pressure. The heating elements are typically electric or gas-powered and are designed to reach temperatures high enough to melt the ductile iron material. As the heat is applied, the ductile iron surfaces begin to soften and fuse together, creating a strong bond. The pressure from the fusion bonding machine ensures that the molten iron flows evenly and uniformly between the joint surfaces, promoting a seamless connection. The duration of the fusion bonding process varies depending on the size and thickness of the pipes, as well as the specific requirements of the project. Once the fusion bonding is complete, the joint is allowed to cool and solidify, forming a permanent and leak-proof connection. Fusion bonding offers several advantages for ductile iron pipes. It provides a reliable and durable joint that can withstand high pressure, temperature variations, and external loads. The seamless connection also minimizes the risk of leaks, which is crucial for underground pipelines that transport water, sewage, or gas. Overall, fusion bonding is a widely used technique for joining ductile iron pipes, ensuring their structural integrity and longevity in various infrastructure projects.

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