• DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN200 System 1
  • DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN200 System 2
  • DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN200 System 3
  • DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN200 System 4
DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN200

DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN200

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
23 m.t.
Supply Capability:
3000 m.t./month

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Product  Discription:

OKorder is offering high quality K7 CLASS DN200 Ductile Iron Pipe and Pipe Fittings at great prices with worldwide shipping. Our Pipe and Pipe Fittings are available in a wide range of styles and materials, and are guaranteed with a full warranty. Our supplier is a world-class manufacturer of Ductile Iron, and our products are utilized the world over, with OKorder annually supplying a full range of products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee a competitive price.

 

Product Applications:

Our K7 CLASS DN200 Ductile Iron Pipe and Pipe Fittings are incredibly reliable and ideal for potable water transmission and distribution as well as utility projects (water and sewer).

 

Product Advantages:

OKorder's K7 CLASS DN200 Ductile Iron Pipe and Pipe Fittings are of the highest quality and we offer external coatings and internal linings as well as accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc. We include a copy of the original inspection reports upon shipment, photos of the loading process sent to the customer, and delivery progress weekly updates

 

Main Product Features:

·         Strict inspections according to related standards

·         Easy installation and service-free

·         Extended service lifespan

 

Product Specifications:

Material: Ductile Cast Iron

Sizes: DN 80mm – DN 2000mm

Effective Length: 6m – 5.7m

Standards: ISO 2531:1998 / EN 545:2006 / EN 598:2007

Annual Capacity: 200,000 tons

Coating: Zinc 130g/m² (ISO 8179-1); 70 micron bitumen coating

Cement: Portland Cement / High Alumina Cement / Sulphate Resisting Cement Lining (ISO 4179)

 

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered by OKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

Q3: What is the difference between Cast Iron and Ductile Iron?

A3: Cast iron is a generic name for any high carbon molten iron poured as a casting. When used to refer to pipe, cast iron (sometimes called gray iron) is a specific type in which the free graphite (Carbon) is in the shape of flakes. Ductile Iron is a specific type of cast iron in which the free graphite is in the shape of nodules or spheroids. Although nearly identical chemically, the two irons are quite different metallurgically. The current standard for Ductile Iron Pipe (ANSI / AWWA A21.51 / C151) requires a minimum grade of 60-42-10 (60,000psi Ultimate Tensile Strength, 42,000psi Yield Strength, and 10% Elongation). Although Cast Iron was the best engineering material available for pipe production for nearly five hundred years, the development of Ductile Iron Pipe provides a far superior product.

Q4: How much thermal expansion should I allow for?

A4: The linear expansion of ductile iron pipe as a result of thermal effects is very small, with ductile iron expanding less than concrete. For rubber gasketed joints and mechanical joints assembled in accordance with the manufacturer’s instructions, there is enough clearance from the face of the plain end of the pipe to the back of the bell to account for significant thermal growth before beginning to make metal-to-metal contact. Except for very long runs of exposed piping, particularly if flow is intermittent, thermal expansion is usually not a concern.

Q5: What is the maximum velocity recommended for cement-lined Ductile Iron pipe?

A5: Although there are differing opinions on this subject, a conservative maximum velocity for design purposes is 7 fps (feet per second). Ductile Iron pipe may be rated as high as 350 psi service. A pipeline operating at 7 fps velocity could account for a 350 psi pressure surge (7fps X 50 psi/fps). Adding a potential surge pressure equal to the pressure rating of the pipe encroaches significantly on the safety factor. Exceeding 7 fps velocity could produce potentially damaging surge pressure.

Q6: Can cement-mortar linings be repaired in the field?

A6: Repair is achieved by first cutting out the defective or damaged lining to the metal so that the edges of the lining not removed are reasonably perpendicular to the pipe wall or slightly undercut. A stiff mortar is then prepared and applied to the cutout area and troweled smooth with adjoining lining. To provide for proper curing of patches by preventing too rapid of a moisture loss from the mortar, the patched area is normally seal-coated immediately after any surface water evaporates, or alternatively the area is kept moist (e.g. with wet rags or burlap over the area or with the ends of the pipe or fitting taped over with plastic film, etc.). Of course, in potable water-related applications, no patch or curing components should be used in the repair that would negatively affect health or water quality.

Q: Can ductile iron pipes be used in agricultural applications?
Yes, ductile iron pipes can be used in agricultural applications. Ductile iron pipes are known for their strength, durability, and corrosion resistance, making them suitable for various agricultural uses such as irrigation systems, water supply networks, and drainage systems. They can withstand high pressure, handle heavy loads, and are also resistant to external factors like soil movements and root penetration.
Q: Can ductile iron pipes be used in contaminated groundwater systems?
Yes, ductile iron pipes can be used in contaminated groundwater systems. Ductile iron pipes are known for their corrosion resistance, making them suitable for handling water with various levels of contamination. Additionally, their strength and durability allow them to withstand the harsh conditions of contaminated groundwater systems.
Q: Are ductile iron pipes suitable for desalination plants?
Yes, ductile iron pipes are suitable for desalination plants. Desalination plants typically require the transportation of large volumes of water, and ductile iron pipes offer several advantages that make them suitable for this purpose. Firstly, ductile iron pipes have excellent strength and durability, which is essential for withstanding the high pressure and corrosive nature of the desalinated water. They can handle the high flow rates and maintain structural integrity over long distances, ensuring a reliable and efficient water transport system. Additionally, ductile iron pipes have good resistance to corrosion, which is crucial in desalination plants where the water may contain high levels of salt and other minerals. The corrosion resistance properties of ductile iron pipes ensure that the water quality is not compromised and that the pipes have a long service life, reducing maintenance and replacement costs. Furthermore, ductile iron pipes have a high impact resistance, which is important in desalination plants where pipelines may be subjected to external forces or accidental damage. Their ability to withstand such impacts reduces the risk of leaks, ensuring the continuous and uninterrupted supply of water. Moreover, ductile iron pipes are also cost-effective compared to other pipe materials such as stainless steel or PVC. They have a lower initial cost and require less maintenance, making them a more economical choice for desalination plants. In conclusion, ductile iron pipes are indeed suitable for desalination plants due to their strength, durability, corrosion resistance, impact resistance, and cost-effectiveness. These pipes can effectively handle the demanding requirements of desalination plants, providing a reliable and efficient water transport system.
Q: Can ductile iron pipes be used for underground mining applications?
Yes, ductile iron pipes can be used for underground mining applications. Ductile iron is known for its strength, durability, and resistance to corrosion, making it suitable for underground mining environments where it may be exposed to harsh conditions and abrasive materials. Additionally, ductile iron pipes have excellent load-bearing capabilities, making them ideal for carrying and transporting materials in mining operations.
Q: Can ductile iron pipes be used in earthquake-prone areas?
Yes, ductile iron pipes can be used in earthquake-prone areas. Ductile iron is a flexible and durable material that can withstand seismic activity and ground movements. It has been tested and proven to have high resistance against earthquakes, making it a suitable choice for infrastructure in earthquake-prone regions.
Q: How do ductile iron pipes handle differential settlement?
Ductile iron pipes possess exceptional durability and are renowned for their ability to endure diverse environmental conditions, including differential settlement. Differential settlement refers to the uneven settling of the ground, which can often impose stress and strain on underground pipes. Specifically engineered to address settlement issues, ductile iron pipes exhibit inherent flexibility and strength. These pipes possess the capacity to flex and accommodate slight ground movements without incurring significant damage or failure. The flexibility of ductile iron pipes enables them to evenly distribute the stress and strain caused by differential settlement along their length. This characteristic assists in averting concentrated stress points that could potentially result in cracks or fractures in the pipe. Furthermore, the inherent strength of ductile iron pipes equips them with the necessary resistance to withstand the forces generated by differential settlement. The pipes' robust construction and high tensile strength render them less susceptible to deformation or damage caused by ground movements. Moreover, ductile iron pipes are commonly installed with flexible joints, such as rubber gaskets or push-on joints. These joints permit some movement and adapt to any slight misalignment or settlement that may occur. By providing flexibility at the joints, the pipes can better adjust to changes in ground conditions and diminish the risk of failure. In conclusion, ductile iron pipes possess the necessary attributes to effectively cope with differential settlement due to their flexibility, strength, and utilization of flexible joints. These features guarantee that the pipes can endure ground movements and continue to function efficiently without compromising their integrity or longevity.
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: What is the typical weight of ductile iron pipes?
The typical weight of ductile iron pipes can vary depending on the size and specifications, but they generally range from a few hundred pounds to several thousand pounds per linear foot.
Q: Can ductile iron pipes be used for fire protection systems?
Yes, ductile iron pipes can be used for fire protection systems. Ductile iron pipes have excellent strength and durability, making them suitable for carrying water and withstanding the pressure required in fire protection systems. Additionally, they have good corrosion resistance, which is crucial for long-term use in fire protection applications.
Q: Are ductile iron pipes suitable for water distribution networks?
Yes, ductile iron pipes are suitable for water distribution networks. Ductile iron pipes have been widely used in water distribution systems for many years due to their numerous advantages. Firstly, ductile iron pipes have excellent durability and long lifespan. They are highly resistant to corrosion, which is extremely important for water pipes as they are constantly exposed to various chemicals and substances in the water. This resistance to corrosion ensures that the pipes maintain their structural integrity over time, reducing the need for frequent repairs or replacements. Additionally, ductile iron pipes have high strength and can withstand high pressure, making them ideal for water distribution networks. They can handle heavy loads and resist external forces such as soil movement or traffic loads, ensuring the safety and reliability of the water supply. Furthermore, ductile iron pipes have excellent hydraulic properties. They have smooth internal surfaces that minimize friction and pressure drop, allowing water to flow efficiently through the system. This helps to conserve energy and reduce pumping costs, making ductile iron pipes a cost-effective choice for water distribution networks. Moreover, ductile iron pipes are versatile and can be easily installed in various soil conditions. They can withstand ground movement and settle without breaking, which is crucial for maintaining a stable water distribution system. In conclusion, ductile iron pipes are highly suitable for water distribution networks due to their durability, resistance to corrosion, high strength, excellent hydraulic properties, and versatility in installation. They provide a reliable and efficient solution for delivering safe and clean water to communities.

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