DUCTILE IRON PIPES AND PIPE FITTINGS K9 CLASS DN150

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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 are the typical surge anticipation measures for ductile iron pipe?: To mitigate potential damage caused by surges or water hammer in ductile iron pipe systems, various techniques can be employed. These measures aim to absorb or redirect sudden pressure changes, preventing pipe rupture or failure. Common surge anticipation measures for ductile iron pipe include: 1. Incorporating air chambers strategically along the pipeline to create a cushion of air that absorbs surge energy. As the pressure wave travels through the pipe, the air compresses, reducing the impact on the pipe and minimizing the risk of damage. 2. Connecting surge tanks, which act as storage reservoirs for excess pressure, to the pipeline. When a surge occurs, the surge tank absorbs the excess water volume, preventing damage to the pipe. The stored water is gradually released back into the system, stabilizing the pressure. 3. Installing surge relief valves in the pipeline to automatically release excess pressure during surge events. These valves open when the pressure exceeds a preset limit, allowing the surge to dissipate harmlessly. Surge relief valves can be adjusted to release the desired amount of pressure, ensuring the safety of the ductile iron pipe. 4. Utilizing water hammer arrestors, which are devices that absorb the shock generated by surges and water hammer. These devices consist of sealed chambers filled with a compressible gas or liquid that absorbs sudden pressure changes. By absorbing the energy, water hammer arrestors protect the ductile iron pipe from potential damage. 5. Using surge suppressors, devices that regulate the flow of water during surge events. Surge suppressors are designed to reduce the speed at which surges travel through the pipe, minimizing the impact on the system. These devices can be installed at critical points in the pipeline to prevent damage to the ductile iron pipe. To determine the most suitable surge anticipation measures for ductile iron pipe installations, it is important to consider the specific requirements of the pipeline system and consult experienced engineers or industry professionals.

Q: Can ductile iron pipes be used in acidic environments?: Ductile iron pipes are capable of being utilized in acidic environments. These pipes possess a strong resistance to corrosion, rendering them suitable for a wide range of applications, including those involving acidic conditions. The heightened carbon content found in ductile iron pipes generates a shielding layer on the pipe's surface, effectively thwarting direct attacks from acid on the iron. Furthermore, the interior lining of the pipe can be coated with epoxy or other protective substances to bolster its resistance to corrosion in acidic settings. Nevertheless, it is crucial to take into account the precise concentration and type of acid present within the environment, as certain acids may still induce corrosion over time. It is highly recommended to seek counsel from professionals or manufacturers to ensure the appropriate selection of materials for specific acidic conditions.

Q: What effect does magnesium play in nodular cast iron?: Magnesium is played by spheroidizing.Nodular cast iron is added a certain amount of spheroidizing agent (magnesium or rare earth magnesium alloy) to the paste before casting, so that all or most of the carbon is spherical graphite and is distributed on the base.

Q: Is nodular cast iron pipe filled with Yau Ma Tei?: In many areas of our country, ductile iron pipe in the middle and small diameter to tube connected with the tube, the bearing type or flange interface method; ductile iron, angle limit must be allowed better seismic performance and sealing performance.

Q: Can ductile iron pipes be used for underground geothermal systems?: Yes, ductile iron pipes can be used for underground geothermal systems. Ductile iron is known for its strength and durability, making it a suitable choice for underground applications. Additionally, it has good corrosion resistance, which is essential in geothermal environments where water and soil conditions can be aggressive.

Q: What kind of joints are used with ductile iron pipe?: Ductile iron pipe typically uses mechanical joints or push-on joints. Mechanical joints consist of a gland and a rubber gasket that are used to connect two pipes together. These joints are secured by bolts or other mechanical means to ensure a tight and secure connection. Push-on joints, on the other hand, do not require any bolts or additional hardware. They simply involve the insertion of a rubber gasket into the socket of the pipe, which creates a sealed connection. Both types of joints are widely used with ductile iron pipe and offer reliable and leak-free connections for various applications.

Q: What is the expected external protection system for ductile iron pipes?: The expected external protection system for ductile iron pipes typically includes a combination of coatings and cathodic protection. Coatings, such as fusion-bonded epoxy (FBE) or polyethylene, are applied to the external surface of the pipe to provide a barrier against corrosion and protect it from the surrounding environment. These coatings are highly resistant to moisture, chemicals, and abrasion, ensuring the longevity of the pipe. In addition to coatings, cathodic protection is often employed to further enhance the external protection of ductile iron pipes. Cathodic protection involves the use of sacrificial anodes or impressed current systems to create a protective electrical current that counteracts the corrosive effects on the pipe's surface. This technique helps prevent corrosion by ensuring that the ductile iron remains in a cathodic state, where it is less prone to degradation. The combination of coatings and cathodic protection provides a robust and comprehensive external protection system for ductile iron pipes. These measures effectively safeguard the pipes from corrosion, extending their service life and minimizing the need for costly repairs or replacements. Regular inspection and maintenance are also essential to ensure the ongoing effectiveness of the external protection system and to address any potential issues promptly.

Q: Can ductile iron pipes be used for trenchless installations?: Yes, ductile iron pipes can be used for trenchless installations. Trenchless methods such as horizontal directional drilling (HDD) and pipe bursting have become popular alternatives to traditional open-cut trenching for installing underground utilities. Ductile iron pipes are suitable for trenchless installations due to their strength, durability, and flexibility. They can withstand the forces involved in HDD and pipe bursting processes without compromising their structural integrity. Additionally, ductile iron pipes have excellent resistance to corrosion, making them a reliable choice for trenchless applications.

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: Can ductile iron pipes be used for irrigation systems in agricultural fields?: Yes, ductile iron pipes can be used for irrigation systems in agricultural fields. Ductile iron pipes are known for their durability, strength, and corrosion resistance, making them a suitable choice for various applications, including irrigation systems. These pipes are capable of withstanding high pressures and can handle the demands of transporting water for irrigation purposes. Additionally, the ductile iron material is resistant to environmental factors such as UV rays, soil chemicals, and temperature fluctuations, ensuring a long lifespan for the pipes. Furthermore, ductile iron pipes have excellent flow characteristics, allowing for efficient water distribution throughout the agricultural fields. Overall, ductile iron pipes are a reliable and robust option for irrigation systems in agricultural fields, providing a sustainable and efficient solution for water distribution.

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