DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN100

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 22 pc

Supply Capability:: 3000 pc/month

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Material : Ductile Cast Iron
Size Range : DN 80mm to DN 2000mm
Unit Effective Length : 6m or 5.7m
Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007
Annual capacity : 200,000 tons
Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.
Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179
Special requirements on external coating and internal lining can be applied
We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

Additional Parts:

Each pipe is strictly inspected according to related standard to ensure permanently high performance.
Easy Installation at site and service free for life
Long Service Lifespan
Quotation will arrive you within 24hours once we get your inquiry.
We guarantee offering you a competitive price.
A copy of original inspection reports of pipes will be offered after shipment.
Photos of loading process will be sent to the customer after shipment effect.
We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.

Q: What is the internal lining used in ductile iron pipes?: Ductile iron pipes commonly employ a cement mortar lining as their internal coating. This lining is carefully applied to safeguard the pipe from corrosion and abrasion. By doing so, it effectively prolongs the pipes' lifespan and enables them to endure the demanding conditions of water or sewage transportation. Moreover, this lining enhances the hydraulic efficiency of the pipes by diminishing friction and averting the development of biofilms or deposits on the inner surface. In essence, incorporating a cement mortar lining into ductile iron pipes is crucial for preserving the integrity and functionality of the infrastructure.

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: Can ductile iron pipe be used for high-pressure gas systems?: Ductile iron pipe is a viable option for high-pressure gas systems due to its remarkable strength and durability. Its ability to withstand high pressures makes it suitable for applications requiring such systems. It possesses outstanding mechanical properties, including high tensile strength, yield strength, and impact resistance. These properties enable it to endure the pressures associated with gas transmission. Additionally, its resistance to corrosion ensures its reliability for long-term use in high-pressure gas systems. However, to ensure optimal safety and performance, it is crucial to consider the specific requirements and regulations of the gas system and seek guidance from industry professionals for correct installation and maintenance of the ductile iron pipe.

Q: How are ductile iron pipes protected against abrasion or wear?: Various methods and protective coatings are utilized to protect ductile iron pipes against abrasion or wear. One commonly employed method involves the application of cement mortar lining on the inner surface of the pipe. This creates a smooth and durable layer that effectively resists the damaging effects of flowing water and other substances passing through the pipe. Furthermore, external protection for ductile iron pipes can be achieved by applying a bituminous or epoxy coating. These coatings act as a barrier, safeguarding against external factors like soil or chemicals that may lead to wear or corrosion. By serving as a protective layer, they prevent direct contact between the iron pipe and the surrounding environment. Moreover, in areas where severe abrasion or wear conditions are prevalent, special linings or coatings can be applied. Polyethylene encasement or polyurethane lining can be utilized to provide enhanced protection against abrasion, especially in regions where the pipe is exposed to high turbulence or abrasive materials. In certain cases, ductile iron pipes can also be reinforced with additional materials such as fiberglass or steel wire to increase their resistance to abrasion or wear. These reinforcements offer an extra layer of protection, strengthening the pipe and reducing the likelihood of damage. Overall, ductile iron pipes are designed with a combination of protective measures to ensure their durability and resistance to abrasion or wear. These measures encompass cement mortar linings, protective coatings, special linings or coatings for severe conditions, and reinforcements. These protective methods play a crucial role in prolonging the lifespan of the pipes and maintaining their functionality even in challenging environments.

Q: Can ductile iron pipes be used for bridge drainage systems?: Yes, ductile iron pipes can be used for bridge drainage systems. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for various applications, including bridge drainage systems. They can effectively handle the flow of water and withstand the weight and pressure of vehicles passing over the bridge.

Q: Are ductile iron pipes more resistant to breaks and cracks than other pipe materials?: Yes, ductile iron pipes are generally more resistant to breaks and cracks compared to other pipe materials. Ductile iron is a type of cast iron that has been treated with magnesium to make it more flexible and less brittle. This enhanced flexibility allows ductile iron pipes to withstand high levels of pressure and external loads without breaking or cracking. Compared to other common pipe materials like PVC, HDPE, or steel, ductile iron pipes have superior strength and durability. They have a higher tensile strength, which means they can withstand greater forces and pressures without failing. Additionally, ductile iron pipes have a higher impact resistance, making them less prone to cracking or breaking under sudden impact or external loads. Another advantage of ductile iron pipes is their resistance to corrosion. The material is naturally resistant to rust and can withstand harsh environmental conditions, making it suitable for underground installations or areas with corrosive soils. This corrosion resistance further contributes to the longevity and overall integrity of the pipes. Furthermore, ductile iron pipes have a longer lifespan compared to other pipe materials. They are designed to last for several decades, often exceeding 50 years, with minimal maintenance. This extended lifespan reduces the need for frequent replacements, saving both time and money in the long run. However, it is important to note that no material is completely immune to damage or failure. Proper installation, maintenance, and adherence to industry standards and guidelines are essential to ensure the optimal performance and longevity of ductile iron pipes. Regular inspection and monitoring should also be conducted to identify any potential issues or signs of deterioration, allowing for timely repairs or replacements.

Q: What is the use of ductile iron?: As far as the tonnage is concerned, the automotive industry is the second largest producer of ductile iron castings, with the largest number of them. Ductile iron is used in three main parts of automobiles: (1) power source, engine parts; (2) power transmission of a gear train, gears and bushings; (3) vehicle suspension, brakes and steering gear. The power source is subjected to continuous change of the crankshaft bending, torsion and shear load, and in its service life, to one billion cycles of car design engineers early in the 19152 years that the processing method for magnesium found in four years later, immediately consider the possibility of using ductile iron. Almost all crankshafts of Ford motor are made of this material. Most gasoline engines in the world are fitted with ductile iron crankshafts instead of forged steel crankshafts, which are considered a typical example of value engineering.

Q: What is the minimum cover requirement for ductile iron pipes?: The minimum cover requirement for ductile iron pipes is typically specified by industry standards and local regulations, but it generally ranges from 2 to 5 feet depending on the pipe diameter and location.

Q: Are there any specific standards or specifications for ductile iron pipes?: Yes, there are specific standards and specifications for ductile iron pipes. The most commonly used standards for ductile iron pipes are set by the American Water Works Association (AWWA) and the International Organization for Standardization (ISO). The AWWA standard for ductile iron pipes is known as AWWA C151. This standard covers the design, manufacturing, testing, installation, and maintenance requirements for ductile iron pipes used in water and wastewater applications. It specifies the materials, dimensions, and mechanical properties of the pipes, as well as the required coatings and linings. Similarly, the ISO standard for ductile iron pipes is ISO 2531. This standard provides guidelines for the design, manufacturing, testing, and installation of ductile iron pipes for water and wastewater systems. It covers various aspects such as dimensions, mechanical properties, coatings, and linings. In addition to these two widely recognized standards, there may be other regional or national standards specific to certain countries or regions. These standards often align with the AWWA and ISO standards or may have additional requirements specific to local conditions or regulations. Compliance with these standards ensures that ductile iron pipes meet the necessary quality and performance requirements. It also facilitates the interoperability and compatibility of ductile iron pipes across different systems and countries, enabling reliable and efficient water distribution and wastewater management.

Q: Can ductile iron pipes be used for fire protection systems?: Yes, ductile iron pipes can be used for fire protection systems. Ductile iron pipes have excellent strength and durability, making them suitable for carrying water and withstanding the pressure required in fire protection systems. Additionally, they have good corrosion resistance, which is crucial for long-term use in fire protection applications.

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