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: What is the maximum pressure rating for ductile iron pipe?: The maximum pressure rating for ductile iron pipe typically depends on several factors such as the pipe diameter, wall thickness, and the type of joint used. Generally, ductile iron pipe is manufactured to withstand a maximum pressure rating of up to 350 psi (pounds per square inch) or higher. However, it is important to consult the specific manufacturer's specifications and guidelines to determine the exact maximum pressure rating for a particular ductile iron pipe.

Q: Can ductile iron pipes be used in high-pressure applications?: Yes, ductile iron pipes can be used in high-pressure applications. Ductile iron pipes are known for their strength and durability, making them suitable for handling high-pressure fluids or gases. They have a higher pressure rating compared to other types of pipes, such as PVC or HDPE pipes. Ductile iron pipes also have excellent resistance to external loads and are capable of withstanding high internal pressures. These pipes are commonly used in water and wastewater systems, as well as in industrial applications where high-pressure conditions are present. It is important, however, to ensure that the ductile iron pipes used in high-pressure applications meet the required standards and specifications to ensure their safe and reliable operation.

Q: Can ductile iron pipes be used for water main extensions?: Yes, ductile iron pipes can be used for water main extensions. Ductile iron pipes have excellent strength and durability, making them suitable for carrying water over long distances and withstanding high pressure. They are corrosion resistant and have a long lifespan, making them a reliable choice for water main extensions.

Q: What are the different methods for tapping ductile iron pipe?: There are several different methods for tapping ductile iron pipe, depending on the specific requirements of the project. Some of the common methods used include: 1. Mechanical Tapping: This method involves using a mechanical tapping machine to create a hole in the ductile iron pipe. The machine is equipped with a cutting tool that rotates and cuts through the pipe wall, creating a clean hole. This method is commonly used for smaller diameter pipes and is relatively quick and efficient. 2. Hot Tapping: Hot tapping involves creating a hole in a pressurized ductile iron pipe while it is still in service. This method requires specialized equipment and expertise to ensure safety and maintain the integrity of the pipe. Hot tapping is commonly used when it is not feasible or practical to shut down the pipeline for maintenance or repair work. 3. Electrofusion Tapping: Electrofusion tapping is a method that uses an electrofusion saddle and fitting to create a branch connection on a ductile iron pipe. This method involves welding a fitting onto the pipe using an electrofusion machine, which creates a secure and leak-proof connection. Electrofusion tapping is commonly used for larger diameter pipes and is suitable for both water and gas applications. 4. Saddle Tapping: Saddle tapping involves attaching a saddle or clamp onto the ductile iron pipe and drilling a hole through the saddle into the pipe. The saddle is then equipped with a threaded outlet for connecting a branch line. This method is commonly used for smaller diameter pipes and is relatively simple and cost-effective. 5. Split Sleeve Tapping: Split sleeve tapping is a method that involves cutting a section out of the ductile iron pipe and installing a split sleeve over the cut. The split sleeve is then bolted together, creating a secure and watertight connection. This method is commonly used for larger diameter pipes and is suitable for both water and gas applications. It is important to note that the selection of the tapping method should be based on factors such as the pipe size, pressure rating, required branch connection, and the specific requirements of the project. Consulting with a professional engineer or tapping specialist is recommended to ensure the proper method is used for tapping ductile iron pipe.

Q: What is the expected service life of ductile iron pipe?: The service life of ductile iron pipe can vary depending on several factors, including the environment, soil conditions, water quality, and the implementation of maintenance and corrosion protection measures. On average, ductile iron pipe is designed to last between 75 and 100 years, thanks to its exceptional strength, durability, and resistance to corrosion. This type of pipe is renowned for its ability to withstand harsh conditions, making it a popular choice for water and wastewater systems, industrial applications, and various infrastructure projects. By regularly maintaining and properly protecting against corrosion, the service life of ductile iron pipe can be extended, ensuring its reliability and performance for many decades to come.

Q: What are the typical joint restraint requirements for ductile iron pipes under pressure?: The typical joint restraint requirements for ductile iron pipes under pressure include the use of mechanical joint restraining devices such as bolts, gaskets, and thrust blocks. These restraints are necessary to prevent the pipes from separating or moving due to the internal pressure of the fluid being transported. Additionally, proper alignment and anchoring of the pipes are essential to ensure the integrity and stability of the pipeline system.

Q: Can ductile iron pipes be used for railway crossings?: Yes, ductile iron pipes can be used for railway crossings. Ductile iron is a strong and durable material that can withstand heavy loads and high traffic volumes, making it suitable for railway crossings. Additionally, it has excellent corrosion resistance properties, which is important for withstanding the harsh environmental conditions associated with railway crossings.

Q: Do ductile iron pipes require concrete encasement for support?: Yes, ductile iron pipes typically require concrete encasement for support. Concrete encasement provides additional stability and strength to the pipes, preventing them from shifting or collapsing under pressure. It helps distribute the load evenly along the length of the pipe and protects it from external forces such as soil movement or heavy vehicle traffic. Concrete encasement also helps to minimize the risk of damage due to corrosion or external impacts, ensuring the longevity and durability of the ductile iron pipes.

Q: What is the minimum cover requirement for ductile iron pipes?: The specific project or engineering design considerations typically determine the minimum cover requirement for ductile iron pipes. However, as a general rule, it is often recommended to have a minimum cover requirement of at least 2 feet (or 0.6 meters) from the top of the pipe to the finished ground surface. This recommendation helps protect the pipe from external loads, soil settlement, and potential damage during construction activities. Additionally, it contributes to the long-term structural integrity and durability of the ductile iron pipe system. It is crucial to consult local building codes, industry standards, and project specifications for accurate and up-to-date information on specific minimum cover requirements.

Q: Can ductile iron pipes be used for road and highway drainage?: Yes, ductile iron pipes can be used for road and highway drainage. Ductile iron pipes have excellent strength and durability, making them suitable for use in various applications, including drainage systems. They have high tensile strength and can withstand heavy loads and traffic, making them ideal for road and highway drainage where constant vehicle movement is expected. Ductile iron pipes are also resistant to corrosion and offer a long service life, reducing maintenance and replacement costs. Additionally, their smooth inner surface allows for efficient water flow, preventing waterlogging and ensuring proper drainage. Therefore, ductile iron pipes are a reliable and effective choice for road and highway drainage systems.

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