DUCTILE IRON PIPES AND PIPE FITTINGS K7 CLASS DN900

DUCTILE IRON PIPES AND PIPE FITTINGS K7 CLASS DN900

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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:Do ductile iron pipes require internal lining for potable water applications?: Yes, ductile iron pipes do require internal lining for potable water applications. This is because the iron used in these pipes can react with the water and potentially contaminate it. Internal lining acts as a barrier between the water and the iron, preventing any chemical reactions and ensuring the water remains safe for consumption.

Q:How are ductile iron pipes protected against external damage?: Ductile iron pipes are protected against external damage through a combination of various protective measures. One common method used is the application of a protective coating on the external surface of the pipe. This coating acts as a barrier, preventing the direct contact of the pipe with corrosive elements in the surrounding environment. The coating can be made of materials such as epoxy, polyurethane, or zinc, which provide excellent resistance against corrosion, abrasion, and chemical attacks. Additionally, ductile iron pipes can be further protected by encasing them in a concrete or cement mortar lining. This lining provides an extra layer of protection, reducing the chances of physical damage due to external impacts or soil movement. The concrete or cement mortar lining also helps to improve the pipe's hydraulic performance by reducing friction and maintaining a smooth flow of water or other fluids. Furthermore, ductile iron pipes are often installed with proper bedding and backfilling techniques. This involves using suitable materials such as sand or gravel to support and stabilize the pipe, minimizing the risk of external damage caused by uneven ground settlement or heavy loads. Adequate compaction of the backfill material is crucial to ensure the long-term integrity and stability of the pipe. Regular inspection and maintenance are also essential for protecting ductile iron pipes against external damage. Periodic inspections can identify any signs of corrosion, coating degradation, or physical damage, allowing for timely repairs or replacement before significant issues arise. Additionally, proper cathodic protection systems can be employed to prevent corrosion by applying an electric current that counteracts the electrochemical reactions occurring on the pipe's surface. In summary, ductile iron pipes are protected against external damage through the application of protective coatings, concrete or cement mortar linings, proper bedding and backfilling techniques, and regular inspections and maintenance. These measures collectively ensure the durability, longevity, and reliable performance of ductile iron pipes in various environments and applications.

Q:Are ductile iron pipes suitable for underground parking structures?: Underground parking structures can benefit from the use of ductile iron pipes. These pipes are recognized for their robustness and long-lasting nature, making them an optimal option for underground settings where they may encounter substantial loads or potential impacts. Moreover, ductile iron pipes exhibit exceptional resistance to corrosion, a crucial characteristic in underground environments that are prone to moisture and other corrosive elements. Furthermore, the high tensile strength and flexibility of ductile iron pipes enable them to withstand ground movements and settle without any cracking or breaking, further elevating their suitability for underground parking structures. In sum, ductile iron pipes offer a dependable and enduring solution for fulfilling the drainage and water supply requirements of underground parking facilities.

Q:Are ductile iron pipes resistant to frost heave?: Ductile iron pipes are generally considered to be resistant to frost heave. Frost heave occurs when water in the ground freezes and causes the surrounding soil to expand and lift. Ductile iron pipes have high tensile strength and flexibility, which allows them to withstand the forces exerted by frost heave without cracking or breaking. Moreover, ductile iron pipes have a high resistance to impact and can handle significant external loads. This makes them particularly suitable for areas that experience freezing temperatures and potential frost heave. Additionally, the joints in ductile iron pipes are designed to provide a tight seal and prevent water infiltration, reducing the risk of freezing and subsequent frost heave. However, it is important to note that while ductile iron pipes are resistant to frost heave, they are not completely immune to it. Extreme temperature fluctuations, prolonged freezing conditions, or inadequate insulation can still pose a risk to the integrity of the pipes. Therefore, proper installation techniques, including appropriate bedding and backfilling materials, thermal insulation, and proper maintenance, are crucial to ensure the long-term performance and resistance of ductile iron pipes to frost heave.

Q:What is ductile iron pipe?: Ductile cast iron is defined using the above number 18 by adding nodulizer, after centrifugal ductile cast iron machine centrifugal cast pipe, ductile iron pipe (called [span]Ductile Cast Iron Pipes), referred to as ball pipe, ductile iron pipe and ductile iron pipe etc..

Q:Are ductile iron pipes suitable for industrial applications?: Yes, ductile iron pipes are suitable for industrial applications. Due to their excellent strength, durability, and resistance to corrosion, ductile iron pipes are commonly used in industrial settings such as water and wastewater treatment plants, power plants, and chemical processing plants. They can handle high-pressure systems, have a long service life, and are cost-effective, making them a reliable choice for various industrial applications.

Q:What if the ductile iron pipe is broken?: It is recommended that you used to repair defects of cast iron machine, are currently on the market to sell, but also can ensure welding intact appearance, make your products by quality, but if it is in the use of performance can not meet the effect, especially the pipeline pressure quite big, what methods are of no use that must be re cast as the new.

Q:What is the expected joint flexibility of ductile iron pipes?: The expected joint flexibility of ductile iron pipes is typically high due to their inherent material properties. Ductile iron is known for its excellent ductility, which refers to its ability to deform without fracturing. This characteristic allows ductile iron pipes to withstand external loads, ground movement, and pressure fluctuations without major damage. The joints in ductile iron pipes are typically designed to provide additional flexibility and accommodate movement. The most common joint type used in ductile iron pipes is the push-on joint, which allows for angular deflection and axial movement. These joints consist of a rubber gasket that creates a watertight seal and allows for slight movement between pipe sections. The expected joint flexibility depends on various factors, including the pipe diameter, joint type, and installation methods. Generally, ductile iron pipes can accommodate angular deflection up to a certain degree, typically ranging from 5 to 10 degrees, depending on the joint design. Axial movement can also be accommodated to some extent, allowing for expansion and contraction of the pipe system. It is important to note that joint flexibility may vary depending on the specific manufacturer and product specifications. Therefore, it is recommended to consult the manufacturer's guidelines and specifications for the expected joint flexibility of a particular ductile iron pipe product.

Q:What is the difference between spheroidal graphite cast iron QT400-15 and QT400-15A? What does the A mean later?: This should be said in front of the material, and later add A, should refer to the grade

Q:Are ductile iron pipes suitable for installation in areas with high traffic loads?: Yes, ductile iron pipes are suitable for installation in areas with high traffic loads. Ductile iron is known for its high strength and durability, making it an ideal choice for applications where there are heavy loads and constant traffic. It has excellent resistance to impact and can withstand heavy loads without cracking or breaking. Additionally, ductile iron pipes have a high load-bearing capacity, allowing them to handle the weight and pressure exerted by vehicles and other heavy equipment. Therefore, they are commonly used in areas such as highways, roads, bridges, and other high traffic areas.

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