DUCTILE IRON PIPE AND PIPE FITTINGS K9 CLASS DN250

DUCTILE IRON PIPE AND PIPE FITTINGS K9 CLASS DN250

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 20 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 are the typical joint restraint requirements for ductile iron pipes in seismic zones?: In seismic zones, the typical joint restraint requirements for ductile iron pipes are designed to ensure the structural integrity and prevent displacement or separation of the pipes during seismic events. These requirements are crucial to maintain the reliability and functionality of the pipeline system. One common joint restraint requirement for ductile iron pipes in seismic zones is the use of flexible or mechanical joint systems. Flexible joints, such as rubber gasket joints, can absorb and accommodate the movement caused by seismic activity. These joints allow for axial movement, angular deflection, and expansion/contraction of the pipes, reducing the risk of pipe failure or damage. Another important requirement is the use of adequate anchoring systems. This involves securing the pipes to the surrounding structures or embedding them in concrete thrust blocks to prevent excessive movement or displacement during seismic events. Anchoring systems help distribute the forces generated by the earthquake and minimize the risk of pipe separation or breaking. Additionally, seismic design standards often require the use of seismic restraints, such as seismic joint restraints or bracing systems, to further enhance the stability and integrity of the ductile iron pipes. These restraints are designed to limit the movement of the pipes in specific directions, reducing the potential for damage and maintaining the overall system performance. It is important to note that the specific joint restraint requirements for ductile iron pipes in seismic zones may vary depending on local building codes, seismic activity levels, and engineering considerations. It is crucial to consult the relevant regulations and work with experienced professionals in the design and installation process to ensure compliance with the necessary requirements for seismic resistance.

Q:What is the expected joint performance of ductile iron pipes?: The expected joint performance of ductile iron pipes is typically high due to their robustness and durability. The joints are designed to provide a tight and secure connection, ensuring minimal leakage and long-term reliability.

Q:Can ductile iron pipes be used for trench crossings?: Yes, ductile iron pipes can be used for trench crossings. Ductile iron pipes are known for their high strength and durability, making them suitable for a wide range of applications including trench crossings. They have the ability to withstand heavy loads and external pressures, making them an ideal choice for underground installations. Additionally, ductile iron pipes have excellent corrosion resistance properties, ensuring their longevity and reliability in trench crossing scenarios.

Q:How are ductile iron pipes protected against erosion caused by high-velocity flow?: Ductile iron pipes are protected against erosion caused by high-velocity flow through various methods and techniques. One common method is the application of protective coatings on the inner surface of the pipes. These coatings create a barrier between the flowing water and the pipe material, reducing the abrasive effects of the high-velocity flow. The coatings used may include epoxy, polyurethane, or cement-mortar lining, depending on the specific requirements of the application. Additionally, manufacturers often design the pipes with increased wall thickness in areas that are prone to erosion, such as bends or areas where the flow velocity is highest. This extra thickness provides additional strength and resistance against erosion. Another technique used to protect ductile iron pipes from erosion is the implementation of flow control devices, such as flow deflectors or velocity-reducing fittings. These devices help to redirect the flow and reduce its velocity, thereby minimizing the impact on the pipe walls. Regular maintenance and inspections are also crucial in preventing erosion. By monitoring the condition of the pipes and identifying any signs of erosion early on, appropriate measures can be taken to address the issue before it escalates. This may involve repairing or replacing damaged sections of the pipes, as well as implementing erosion control measures such as sediment filters or flow restrictors. Overall, a combination of protective coatings, design considerations, flow control devices, and proactive maintenance strategies are employed to ensure that ductile iron pipes are adequately protected against erosion caused by high-velocity flow.

Q:What kind of valves are commonly used in ductile iron pipes?: Gate valve, butterfly valve, globe valve, check valve flange of various valves, (but the pipeline used for water supply and some limitations of the transport medium may be prescribed valve type) now due to material improvements in the technology, in most cases, smaller pipe diameter is also large diameter pipe outlet valve, butterfly valve, because of the pipeline the large diameter pressure in the pipeline and water than the small caliber to open and close the valve, to human hard, efficiency is not high, so for butterfly valve,

Q:How to properly maintain FRP pipes: It has excellent corrosion resistanceDo not use cathodic protection and other anti-corrosion measures to produce two contamination of water and other media. Long service life of products.

Q:Will nodular cast iron pipes rust?: Ductile iron pipe corrosion process is good, decided whether it will rust. Whether it will rust or not, the key is whether the anti-corrosion process of the nodular cast iron pipe is in place.

Q:Is there any cast iron pipe used in the fire hose?: I do not know, are generally seamless steel pipe or spiral pipe, straight seam pipe.

Q:How are ductile iron pipes tested for quality?: Ductile iron pipes are tested for quality through various methods, including hydrostatic pressure testing, dimensional inspection, and mechanical properties testing. Hydrostatic pressure testing involves subjecting the pipes to water pressure to ensure they can withstand the intended operating conditions without any leakage or failure. Dimensional inspection assesses the pipes' dimensions, such as diameter, wall thickness, and length, to ensure they meet the specified standards. Mechanical properties testing evaluates the pipes' tensile strength, yield strength, and elongation to ensure they possess the necessary strength and flexibility. Overall, these rigorous testing procedures help ensure the high quality and reliability of ductile iron pipes.

Q:What are the different methods for joining ductile iron pipe?: There are several methods for joining ductile iron pipe, each with its own advantages and limitations. One common method is mechanical joint (MJ) coupling, which involves using a rubber gasket and a set of bolts and nuts to create a watertight seal between pipe sections. This method is relatively quick and easy to install, but it requires a skilled technician to ensure proper alignment and bolt tightening to prevent leakage. Another method is flanged joint, where the pipe ends are equipped with flanges that are bolted together using gaskets to create a tight seal. This method allows for easy disassembly and reassembly of pipe sections, making it suitable for applications that require frequent maintenance or modifications. However, it is more expensive and time-consuming compared to other methods. One widely used method is push-on joint (POJ), which involves using a rubber gasket and a special lubricant to slide the pipe ends together. This method provides a reliable and watertight seal, and it is relatively quick and easy to install. However, it requires proper alignment and care to avoid damaging the gasket during assembly. Another option is restrained joint (RJ), which uses a mechanical joint coupling with additional features to resist axial forces or thrusts. This method is commonly used in applications where the pipe is subject to internal pressure, external loads, or seismic activity. It provides a secure and rigid connection but may require specialized tools and training for installation. Finally, welding is another method for joining ductile iron pipe. It involves heating the pipe ends and melting a filler metal to create a permanent bond. This method provides a strong and durable connection, but it requires skilled welders and additional time for preparation, welding, and cooling. Welding is often used for specific applications, such as joining sections of pipe with different diameters or connecting to other materials. In summary, the different methods for joining ductile iron pipe include mechanical joint coupling, flanged joint, push-on joint, restrained joint, and welding. The choice of method depends on factors such as the application requirements, installation time, maintenance needs, and budget.

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