DUCTILE IRON PIPES AND PIPE FITTINGS c25 DN900

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t

Supply Capability:: 30000 m.t/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 cost of ductile iron pipes compared to other pipe materials?: Ductile iron pipes tend to be cost competitive compared to other pipe materials. While the exact cost can vary depending on factors such as pipe diameter and length, ductile iron pipes generally offer a good balance between cost and performance. They are often preferred in applications that require high strength, durability, and corrosion resistance, making them a popular choice in various industries including water and wastewater systems, oil and gas pipelines, and infrastructure projects.

Q:How do ductile iron pipes perform in high-velocity water flow conditions?: High-velocity water flow conditions are easily handled by ductile iron pipes. Their composition and manufacturing process give them remarkable strength and durability, making them highly resistant to the forces generated by fast-flowing water. These pipes are specifically designed to endure significant hydraulic pressure and turbulent conditions. Their inherent ductility allows them to absorb the energy of the flowing water and effectively dissipate any potential stress or impact that may arise. Furthermore, the smooth internal surface of ductile iron pipes reduces frictional losses, ensuring efficient water flow even at high speeds. This characteristic is vital in maintaining the necessary water pressure and flow rates in various applications, including water distribution systems, sewage networks, and industrial processes. Additionally, the corrosion resistance of ductile iron pipes enhances their performance in high-velocity water flow conditions. Typically, these pipes are lined with cement mortar or polyethylene, providing extra protection against the corrosive effects of fast-flowing water. In summary, ductile iron pipes are perfectly suited for high-velocity water flow conditions, offering exceptional strength, durability, and hydraulic efficiency. Their ability to withstand the challenges posed by fast-flowing water makes them a reliable choice for a wide range of applications where high water velocity is a concern.

Q:Can ductile iron pipe be used for marine applications?: Yes, ductile iron pipe can be used for marine applications. It is corrosion-resistant and has high strength, making it suitable for various marine environments and applications such as underwater pipelines, dock construction, and seawater intake systems.

Q:How do ductile iron pipes handle concentrated loads?: Ductile iron pipes are highly resistant to concentrated loads due to their inherent strength and flexibility. They have the ability to distribute the load over a larger area, minimizing the risk of failure or damage. This makes them suitable for handling heavy loads and ensuring long-term durability in various applications.

Q:Can ductile iron pipes be used in areas with high water velocity?: Areas with high water velocity can indeed utilize ductile iron pipes. These pipes are renowned for their robustness and resilience, making them a fitting choice for dealing with elevated water speeds and pressures. They possess exceptional corrosion resistance and can withstand the powerful forces generated by swiftly flowing water. Furthermore, the design of ductile iron pipes includes smooth internal surfaces, which aids in minimizing friction and mitigating the potential impact of high water velocity on the pipes. Nevertheless, it is crucial to adhere to appropriate installation and maintenance procedures to optimize the performance and durability of the ductile iron pipes in areas with high water velocity.

Q:Do ductile iron pipes require internal linings or coatings?: Yes, ductile iron pipes typically require internal linings or coatings in order to prevent corrosion and extend their lifespan.

Q:What material is ductile cast iron 235A?: Nodular cast iron by spheroidization and inoculation by spherical graphite, effectively improve the mechanical properties of cast iron, especially the plasticity and toughness increased, resulting in higher than carbon steel. The strength of nodular cast iron is a kind of high strength cast iron material developed in 50s twentieth Century, its comprehensive performance is close to the steel. It is based on its excellent performance, has been successfully used in casting complex stress, strength, toughness and wear resistance requirements of the higher parts. Ductile iron has been the rapid development of cast iron material for application of gray cast iron, only very widely. The so-called "iron steel", mainly refers to the ductile iron.

Q:Can ductile iron pipe be used for wastewater treatment plant sludge dewatering?: Yes, ductile iron pipe can be used for wastewater treatment plant sludge dewatering. Ductile iron pipes are commonly used in wastewater treatment plants due to their durability, strength, and corrosion resistance. They can handle the harsh conditions and abrasive nature of sludge dewatering processes. Ductile iron pipes are also known for their leak-proof joints, which are crucial in preventing any leakage of sludge during the dewatering process. Additionally, ductile iron pipes are available in various sizes and can be easily installed, making them a suitable choice for wastewater treatment plant sludge dewatering applications.

Q:Method for joining cast iron pipes: The connection between the pipe and the pipe adopts the form of socket type or flange disk interface. According to the function, it can be divided into two kinds: flexible interface and rigid interface. The flexible interface is sealed with rubber ring, which allows a certain degree of corner and displacement, so it has good seismic resistance and tightness. It is easy and quick to install than rigid interface. It has little labor intensity according to the casting method.

Q:How are ductile iron pipes protected against internal corrosion caused by chemicals?: Ductile iron pipes are protected against internal corrosion caused by chemicals through a combination of several protective measures. Firstly, these pipes are usually lined with a cement mortar lining or an epoxy coating. This lining acts as a barrier between the chemical substances in the water or sewage and the iron material of the pipe, preventing direct contact and corrosion. In addition to the lining, a corrosion-resistant polymer or bituminous coating is often applied to the exterior of the ductile iron pipes. This coating serves as an extra layer of protection, safeguarding the pipe against any external chemical exposure that may occur. Furthermore, cathodic protection is commonly employed to prevent internal corrosion. This technique involves the use of sacrificial anodes, typically made of zinc or magnesium, which are attached to the pipe. The anodes corrode over time instead of the iron, effectively sacrificing themselves to protect the pipe from corrosion caused by chemicals. Regular maintenance and monitoring of the ductile iron pipes are also crucial in preventing and addressing any potential corrosion issues. This includes routine inspections, cleaning, and repairing any damaged or corroded areas promptly. Overall, the combination of lining, external coating, cathodic protection, and maintenance practices ensures that ductile iron pipes are well-protected against internal corrosion caused by chemicals, prolonging their lifespan and ensuring the integrity of the pipeline system.

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