DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN300

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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:Can ductile iron pipes be used in areas with high soil acidity?: To ensure the durability and performance of ductile iron pipes in areas with high soil acidity, certain precautions should be taken. Ductile iron pipes are renowned for their strength, durability, and resistance to corrosion, making them suitable for various soil conditions, including those with high acidity. However, the presence of high soil acidity can still pose a potential risk to ductile iron pipes over time. Acidic soils can accelerate the corrosion process, leading to the degradation of the pipe material. To mitigate this risk, the following measures can be implemented: 1. Protective Coatings: Applying protective coatings, such as epoxy or polyethylene, to the outer surface of the pipes adds an extra layer of defense against soil acidity. These coatings act as a barrier, preventing direct contact between the pipe and the corrosive soil. 2. pH Adjustment: Adjusting the pH levels of the soil can help reduce its acidity. This can be achieved by incorporating lime or other neutralizing agents into the soil, creating a more favorable environment for the ductile iron pipes. 3. Cathodic Protection: Employing cathodic protection systems is an effective method to prevent corrosion in ductile iron pipes. This technique involves utilizing sacrificial anodes or impressed current systems to generate a protective electrical current that counteracts the corrosive effects of the soil. 4. Regular Inspections: Conducting periodic inspections is crucial to monitor the condition of the ductile iron pipes in high soil acidity areas. This enables early detection of any corrosion or degradation, facilitating timely repairs or replacements. By implementing these measures, ductile iron pipes can be effectively utilized in areas with high soil acidity, guaranteeing long-term performance and minimizing the risks associated with corrosive soils. However, it is advisable to consult experts or engineers familiar with local soil conditions and project requirements to determine the most suitable materials and protective measures.

Q:Can ductile iron pipes be used for trench crossings?: Indeed, trench crossings can utilize ductile iron pipes. Renowned for their remarkable strength and durability, ductile iron pipes prove to be fitting for a diverse array of purposes, including trench crossings. Their capacity to endure substantial burdens and external pressures renders them an optimal selection for subterranean installations. Moreover, ductile iron pipes boast exceptional resistance to corrosion, guaranteeing their enduring and dependable performance in the context of trench crossings.

Q:What are the typical joint sealing requirements for ductile iron pipes?: When sealing joints in ductile iron pipes, two common methods are typically used: rubber gaskets and mechanical joints. Rubber gaskets are frequently chosen for their reliability and flexibility. They are typically made of synthetic rubber materials that are resistant to water, chemicals, and other environmental factors. On the other hand, mechanical joints are also commonly used for sealing joints in ductile iron pipes. These joints utilize a mechanical device to connect the pipes and create a watertight seal. They are designed to allow for some movement and flexibility, which is particularly important in areas prone to ground movement or settlement. In addition to using rubber gaskets or mechanical joints, it is crucial to properly clean and prepare the pipe surfaces before joining them. This involves removing any dirt, debris, or old joint material from the pipe ends to ensure a secure seal. Following the manufacturer's instructions, the joint should be assembled, ensuring that the gasket or mechanical joint is correctly positioned and tightened to the recommended torque. In summary, the typical requirements for sealing joints in ductile iron pipes involve the use of rubber gaskets or mechanical joints, thorough cleaning and preparation of the pipe ends, and adherence to the manufacturer's assembly instructions. These requirements are essential to achieve a durable and watertight joint that can withstand the pressures and environmental conditions commonly encountered in ductile iron pipe systems.

Q:How are ductile iron pipes manufactured?: Ductile iron pipes are manufactured through a process called centrifugal casting. In this process, molten iron is poured into a spinning mold, which creates a centrifugal force. This force helps to distribute the molten iron evenly along the mold's inner surface, resulting in a dense and uniform pipe wall thickness. After cooling and solidification, the pipe is removed from the mold, tested for quality, and then coated with a protective layer to enhance its durability and resistance to corrosion.

Q:Are there any special coatings or linings used for ductile iron pipes?: Yes, there are special coatings and linings used for ductile iron pipes. These coatings are applied to the interior and exterior surfaces of the pipes to protect them from corrosion and extend their lifespan. Common coatings include cement mortar lining, epoxy lining, and polyethylene encasement. These protective layers help prevent the formation of rust and scale, ensuring the durability and longevity of ductile iron pipes.

Q:Why is the cast iron tube lined with cement? Under what circumstances are ductile iron pipes lined with cement, and under what circumstances do not have to be lined with cement?: The cement lining protects the water quality, reduces the head loss and improves the service life of the spheroidal graphite pipe. As long as the water delivery hose is used, the cement lining must be used. There is no lining cement for conveying air.

Q:Can ductile iron pipe be used for wastewater treatment plants?: Ductile iron pipe is indeed applicable for wastewater treatment plants. This material is robust and long-lasting, displaying resistance against both corrosion and abrasion. Given the severe and corrosive conditions commonly present in such facilities, ductile iron pipe is frequently chosen. Its exceptional hydraulic performance further enables efficient and effective transportation of wastewater. Moreover, the simple installation and maintenance process of ductile iron pipe make it a practical preference for wastewater treatment plants. Ultimately, ductile iron pipe proves to be a dependable and economical alternative for wastewater treatment purposes.

Q:What are the different methods for anchoring ductile iron pipe?: There are several methods available for anchoring ductile iron pipe, depending on the specific application and requirements. 1. Thrust Blocks: This method involves constructing concrete blocks around the pipe at points where there are changes in direction or changes in pipe diameter. The blocks provide resistance against the thrust forces generated by the flowing water, preventing movement of the pipe. 2. Concrete Collars: Concrete collars or rings can be installed around the pipe at regular intervals to provide additional support and prevent lateral movement. These collars are typically made by pouring concrete into a pre-made mold around the pipe. 3. Pipe Clamps: Pipe clamps are metal brackets that can be attached to the pipe and anchored to a structure or a support system. These clamps come in various sizes and designs, providing flexibility in installation and allowing for adjustment as needed. 4. Pipe Restraints: Pipe restraints are devices specifically designed to restrain the movement of ductile iron pipe. They usually consist of a metal band or collar that is tightened around the pipe and attached to a concrete structure or an anchoring system. 5. Bell and Spigot Joint: The bell and spigot joint itself can act as a means of anchoring the pipe. The bell end of one pipe fits over the spigot end of another, creating a tight connection that helps resist movement. 6. Soil Embedment: Properly compacted soil surrounding the pipe can provide some level of anchoring. The soil should be compacted in layers around the pipe to ensure stability and prevent movement. It is important to note that the selection of the anchoring method depends on factors such as soil conditions, pipe diameter, operating pressure, and location. Consulting industry standards and guidelines, along with the assistance of a qualified engineer, is crucial in determining the appropriate anchoring method for a specific ductile iron pipe installation.

Q:Are ductile iron pipes suitable for use in irrigation pivot systems?: Yes, ductile iron pipes are suitable for use in irrigation pivot systems. They are known for their durability, strength, and resistance to corrosion, making them a reliable choice for transporting water in agricultural applications. Additionally, ductile iron pipes have a high tolerance for pressure and can withstand the stresses caused by irrigation pivot systems.

Q:DN1800 can the length of ductile iron pipes be several meters? What is the total weight?: Ductile iron pipe is a kind of cast iron pipe.

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