• DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN900 System 1
  • DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN900 System 2
DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN900

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN900

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
32 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 pipe be used for oil and gas transmission pipelines?
Yes, ductile iron pipe can be used for oil and gas transmission pipelines. It offers excellent strength, durability, and corrosion resistance, making it suitable for the transportation of various fluids, including oil and gas. However, other factors such as specific project requirements, operating conditions, and regulatory standards should also be considered before making a final decision.
Q:How do ductile iron pipes handle ground movement due to tree roots?
Ductile iron pipes possess a robust and enduring nature, rendering them exceptionally resilient against ground movement induced by tree roots. The flexibility of ductile iron enables it to endure the pressure exerted by growing tree roots without fracturing or breaking. This capability is attributed to the material's aptitude for absorbing and dispersing stress, thereby minimizing the impact of ground movement. Furthermore, ductile iron pipes exhibit a sleek inner surface that diminishes the likelihood of tree roots infiltrating. The firmly sealed joints between the pipes likewise prevent root penetration and subsequent harm. In cases where tree roots do manage to infiltrate the soil and make contact with ductile iron pipes, their resistance to corrosion offers an additional advantage. Ductile iron pipes are coated with a protective layer that thwarts the formation of rust and corrosion, guaranteeing their long lifespan and structural integrity. Nevertheless, it is imperative to acknowledge that despite the high resistance of ductile iron pipes to ground movement caused by tree roots, regular inspection and maintenance are still advisable. This facilitates early detection and the necessary execution of repairs if any root infiltration or damage is identified.
Q:How to control mortar proportioning in ductile iron pipe cement coating
The mix ratio of cement coated mortar for ductile iron pipes refers to the weight ratio of various raw materials consisting of ductile iron pipes and cement coated mortars.
Q:Are ductile iron pipes suitable for acidic or alkaline environments?
Yes, ductile iron pipes are suitable for both acidic and alkaline environments. They have excellent resistance to corrosion, making them a reliable choice for transporting fluids in a wide range of pH levels.
Q:Are ductile iron pipes suitable for wastewater systems?
Indeed, wastewater systems can utilize ductile iron pipes. Ductile iron, renowned for its robustness and durability, exhibits resistance against corrosion and can endure the arduous conditions typically encountered in wastewater systems. Its exceptional tensile strength enables it to withstand the pressure and stress resulting from the movement of wastewater. Furthermore, the installation of ductile iron pipes is effortless, and their longevity ensures a cost-effective solution for wastewater systems. In conclusion, ductile iron pipes represent a dependable and appropriate choice for transporting wastewater in diverse applications.
Q:How long is the service life of the cast iron pipe, and the time of use of ductile iron pipes?
When it comes to the service life of nodular cast iron, its maintenance is essential for its long service life. Then, the focus of the maintenance of ductile iron pipe is to pay special attention to, will affect the long-term use of ductile iron pipes, stable operation of socket, row, etc., we should make efforts to these aspects of the mouth without debris. Make sure that the rubber ring of the ductile iron pipe has been smashed with a rubber hammer, and it is not twisted or twisted, and it is uniformly stuck in the slot. Ductile iron pipe in the maintenance process, because of the pneumatic tube axis is buried into the ground, so in the face of a tilt angle of the time, we must be careful, if the resistance is too large, will not force the excavation, in order to prevent the distortion of the rubber ring.
Q:How are ductile iron pipes protected against external soil loads?
Ductile iron pipes are protected against external soil loads through several methods. One of the primary methods is the use of a protective coating on the exterior surface of the pipe. This coating acts as a barrier between the iron pipe and the surrounding soil, preventing direct contact and reducing the risk of corrosion. Another method of protection is the use of trench backfill materials. The soil used for backfilling is carefully selected and compacted to provide adequate support and load distribution for the pipe. This helps to minimize the stress and pressure exerted on the pipe by the surrounding soil. Additionally, the design and installation of the pipe system play a crucial role in protecting ductile iron pipes against external soil loads. The pipes are typically laid in a properly engineered trench, which includes appropriate bedding and backfilling techniques to ensure stability and minimize the potential for damage. Furthermore, the use of proper pipe jointing techniques is essential for protecting against external soil loads. Joints are often designed to be flexible, allowing for some movement and accommodating external loads. This helps to distribute the stress along the length of the pipe and prevents concentrated pressure points that could lead to failure. Overall, a combination of protective coatings, appropriate backfill materials, proper installation techniques, and joint design contribute to the effective protection of ductile iron pipes against external soil loads. This ensures the longevity and reliability of the pipe system, even in challenging soil conditions.
Q:What are the typical applications for ductile iron pipes?
Due to their unique properties and advantages, ductile iron pipes are commonly utilized in a wide range of applications. Some of the typical uses for these pipes include the following: 1. Water Supply Systems: Ductile iron pipes are extensively employed in municipal water distribution networks and other water supply systems. They are highly resistant to corrosion and possess remarkable durability. Their ability to withstand high pressure and provide a long service life makes them ideal for transporting potable water. 2. Wastewater and Sewage Systems: Ductile iron pipes are also widely utilized in wastewater and sewage systems. Their strength and resistance to chemical corrosion enable them to effectively transport sewage and other wastewater. These pipes are commonly found in underground sewer lines, sewer force mains, and wastewater treatment plants. 3. Industrial Applications: Ductile iron pipes find applications in various industrial sectors. They are commonly used for transporting different types of fluids, such as chemicals, slurries, and abrasive substances. Their strength, toughness, and resistance to external loads make them suitable for industrial pipelines in power plants, refineries, and mining operations. 4. Irrigation Systems: Ductile iron pipes are frequently employed in irrigation systems for agricultural purposes, landscaping, and golf courses. These pipes can withstand high water pressure and provide a reliable solution for transporting water over long distances. Their corrosion resistance ensures that water quality is maintained, while their durability reduces the need for frequent maintenance. 5. Fire Protection Systems: Ductile iron pipes are widely used in fire protection systems, including sprinkler systems and fire hydrants. Their strength and ability to withstand high pressure make them suitable for quickly delivering water during fire emergencies. Additionally, these pipes are resistant to heat, making them a reliable choice for fire protection applications. In conclusion, ductile iron pipes are versatile and extensively used in various applications, including water supply systems, wastewater and sewage systems, industrial pipelines, irrigation systems, and fire protection systems. Their durability, corrosion resistance, and ability to withstand high pressure make them a preferred choice for these applications.
Q:What is the expected fatigue life of ductile iron pipes under cyclic loading?
The fatigue life of ductile iron pipes under cyclic loading can vary due to factors such as the magnitude and frequency of the loading, material quality, pipe design and installation, and environmental conditions. Ductile iron possesses high strength and ductility, enabling it to withstand cyclic loading to a certain extent. However, like any material, it is susceptible to fatigue failure over time. Engineers commonly employ fatigue analysis and testing methods to estimate the expected fatigue life of ductile iron pipes. These methods involve subjecting representative samples of the pipes to controlled cyclic loading and determining the number of cycles required for failure. The results of these tests can then be used to extrapolate the expected fatigue life of the pipes under similar loading conditions. It is important to note that the expected fatigue life can significantly differ depending on the specific conditions and loading patterns experienced by the pipes in a given application. Therefore, it is crucial to consider operational demands, maintenance practices, and the overall structural integrity of the pipeline system. Additionally, adhering to appropriate design standards and guidelines, along with regular inspection and maintenance, can help enhance the fatigue life of ductile iron pipes. In conclusion, while providing a specific value for the expected fatigue life of ductile iron pipes under cyclic loading is challenging, engineers can estimate it through fatigue analysis and testing methods. Considering various factors and maintaining the pipes properly is essential to ensure their longevity and prevent potential failures.
Q:What if the ductile iron pipe is broken?
Ductile iron pipes can be broken with a large piece of repair sectionIn the medium and low pressure pipe network, nodular cast iron pipe has the advantages of safe operation, low breakage rate, convenient construction and maintenance, excellent corrosion resistance, etc..

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