DUCTILE IRON PIPE k14 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 pipes be used for stormwater management?: Yes, ductile iron pipes can be used for stormwater management. Ductile iron is a strong and durable material that is resistant to corrosion and can withstand the high flow rates and pressures typically associated with stormwater management systems. These pipes have been widely used for various applications, including stormwater drainage and sewage systems. Their ability to handle heavy loads and withstand environmental factors makes them a suitable choice for stormwater management, ensuring efficient water flow and preventing flooding in urban areas. Moreover, ductile iron pipes have a long lifespan, reducing the need for frequent maintenance and replacement, making them a cost-effective choice for stormwater management infrastructure.

Q:How are ductile iron pipes protected against stray electrical currents?: To safeguard water and sewer systems, ductile iron pipes are shielded from stray electrical currents through a technique called cathodic protection. This process entails the application of a low-voltage direct current (DC) to the pipes, generating a defensive electrical field around them. To achieve cathodic protection, sacrificial anodes or impressed current systems are installed near the ductile iron pipes. Sacrificial anodes, composed of a more electrically active metal like zinc or magnesium, are connected to the pipes and act as the electrical current source. Over time, these anodes corrode, sacrificing themselves to shield the pipes from corrosion caused by stray electrical currents. However, impressed current systems utilize an external power source to supply the protective electrical current. Rectifiers are employed to convert alternating current (AC) to direct current (DC), which is then administered to the pipes through anodes. This approach provides greater control over the amount of current applied, ensuring optimal protection. In both scenarios, the electrical current flowing through the sacrificial anodes or impressed current systems establishes a protective barrier around the ductile iron pipes. This barrier impedes the flow of stray electrical currents through the pipes, thus diminishing the risk of corrosion and prolonging the infrastructure's lifespan. Regular monitoring and maintenance of the cathodic protection system are crucial to uphold its efficacy. This involves inspecting the anodes, assessing the levels of electrical current, and making any necessary adjustments or replacements to maintain the desired level of protection. To summarize, cathodic protection is a dependable and widely utilized method for safeguarding ductile iron pipes against stray electrical currents. By preserving the integrity and longevity of water and sewer systems, it plays a vital role in ensuring their functionality.

Q:How do ductile iron pipes handle heavy traffic loads?: Ductile iron pipes are known for their exceptional strength and durability, making them well-suited to handle heavy traffic loads. Their high tensile strength and resistance to cracking or breaking under pressure allow them to withstand the weight and stress generated by heavy traffic. Additionally, the flexible nature of ductile iron allows it to absorb and distribute the load, reducing the risk of damage or failure. Overall, ductile iron pipes are a reliable choice for handling heavy traffic loads in various infrastructure systems.

Q:What are the common methods for flow control in ductile iron pipes?: There are several common methods for flow control in ductile iron pipes. One of the most commonly used methods is the installation of valves. Valves can be used to regulate the flow of water or other fluids through the pipes. They can be manually operated or automated, depending on the specific needs of the system. Another method for flow control in ductile iron pipes is the use of flow restrictors or flow limiters. These devices are installed in the pipes to reduce the flow rate and ensure that the system operates within its designed parameters. Flow restrictors can be useful in situations where the flow needs to be controlled to prevent damage or to optimize the efficiency of the system. Flow control can also be achieved through the use of pressure regulators. These devices are installed in the pipes to maintain a specific pressure level within the system. Pressure regulators can help prevent excessive pressure, which can lead to pipe bursts or other damage. They can also help maintain a consistent pressure throughout the system, ensuring that the flow is controlled and predictable. Additionally, flow control can be achieved through the use of flow meters. These devices are installed in the pipes to measure the flow rate of the fluid passing through them. By monitoring the flow rate, operators can adjust valves or other flow control devices to ensure that the flow is within the desired range. Flow meters are particularly useful in applications where accurate flow measurement is crucial, such as in industrial processes or water distribution systems. Overall, the common methods for flow control in ductile iron pipes include the use of valves, flow restrictors, pressure regulators, and flow meters. These methods can be combined or used individually depending on the specific requirements of the system.

Q:Are ductile iron pipes suitable for horizontal auger boring installations?: Yes, ductile iron pipes are suitable for horizontal auger boring installations. Ductile iron pipes are known for their strength and durability, making them a reliable choice for various installation methods, including horizontal auger boring. This method involves drilling a horizontal hole underground and then pulling the pipe through the hole. Ductile iron pipes can withstand the forces involved in this process and maintain their structural integrity. Additionally, ductile iron pipes have high resistance to corrosion, which is crucial for underground installations where they may be exposed to moisture and other potentially damaging elements. Overall, ductile iron pipes are a suitable and widely used option for horizontal auger boring installations.

Q:Are ductile iron pipes suitable for gravity flow applications?: Ductile iron pipes are indeed suitable for gravity flow applications. This material, known for its strength and durability, can easily bear the weight of water and solid waste flowing through the pipes without encountering any problems. It possesses exceptional tensile strength and can withstand external forces like soil movement or heavy traffic loads without sustaining damage. Moreover, the inner surfaces of these pipes are smooth, ensuring efficient flow and minimal friction losses. Additionally, ductile iron pipes are resistant to corrosion and can last for several decades without necessitating frequent maintenance or replacement. In conclusion, ductile iron pipes are a dependable option for gravity flow applications due to their robustness, longevity, and ability to resist various environmental factors.

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:Can ductile iron pipes be used for underground steam distribution systems?: Ductile iron pipes are well-suited for underground steam distribution systems. They belong to the cast iron family, but have been treated with magnesium to enhance their flexibility and resistance to cracking. Consequently, they can endure high pressure and temperature conditions, making them ideal for underground applications like steam distribution systems. The strength and durability of ductile iron pipes are remarkable, allowing them to withstand the extreme conditions associated with steam distribution. Moreover, their corrosion resistance properties make them a dependable choice for long-term use in underground environments. Nevertheless, it is essential to apply proper insulation to prevent heat loss and ensure the efficiency of the steam distribution system.

Q:What is the expected joint restraint method for ductile iron pipes?: The expected joint restraint method for ductile iron pipes is typically mechanical joint restraints, such as gland and follower glands or wedge-action restraints, which provide a secure and reliable connection while allowing for expansion and contraction of the pipes.

Q:Are ductile iron pipes suitable for installation in areas with high traffic loads?: Ductile iron pipes are indeed suitable for installation in areas characterized by heavy traffic loads. The reason behind this lies in the remarkable strength and durability of ductile iron, rendering it an optimal selection for situations involving substantial loads and consistent traffic. This material possesses outstanding resistance to impact and can endure heavy loads without succumbing to cracks or fractures. Furthermore, ductile iron pipes boast a notable capacity for bearing heavy loads, enabling them to effectively withstand the weight and pressure imposed by vehicles and other weighty machinery. Consequently, these pipes find widespread utilization in locations such as highways, roads, bridges, and other regions experiencing significant traffic volumes.

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