DUCTILE IRON PIPE AND PIPE FITTINGS K8 CLASS DN300

DUCTILE IRON PIPE AND PIPE FITTINGS K8 CLASS DN300

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 23 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: Does centrifugal cast iron pipe work well with lining cement? Will it scale and breed bacteria?: The situation in use abroad seems. It is considered that the corrosion of the inner wall of the centrifugal centrifugal ductile iron pipe and the rupture of the pipe are easy to occur when the content of chloride ion exceeds 5O0PPm in the pipe laying environment. This is mainly because, because the cement paste protection layer is the late spraying construction, it is not good to combine with the prefabricated core tube. It often causes water or moisture to seep in and causes oxidation and corrosion of the prestressing steel bars, resulting in fracture. The adhesive interface between cement mortar and centrifugally cast iron pipe is not reasonable. Because of the water absorption of cement, when the water enters the pipe, it is easy to destroy the interface and corroded the inner wall of the centrifugally cast iron pipe. Because it is a brittle material, it is easy to cause sudden accidents.

Q: What are the typical pressure surge protection measures for ductile iron pipe?: There are several typical pressure surge protection measures for ductile iron pipe that help ensure its integrity and longevity. These measures include: 1. Surge tanks: Surge tanks are commonly used to absorb pressure surges and minimize their impact on the ductile iron pipe. These tanks are typically installed at critical points in the pipeline system, such as at pump stations or near valves, to provide a reservoir for excess pressure. 2. Air release valves: Air release valves are essential components in ductile iron pipe systems that help release trapped air and prevent the formation of air pockets. These valves help maintain a stable pressure within the pipe and reduce the risk of pressure surges during operation or sudden changes in flow. 3. Pressure relief valves: Pressure relief valves are designed to protect ductile iron pipes by releasing excess pressure when it exceeds a predetermined threshold. These valves are typically installed at strategic locations in the pipeline system and are set to open when the pressure exceeds a safe limit, diverting the excess pressure to prevent damage to the pipe. 4. Surge suppressors: Surge suppressors are devices that are installed in ductile iron pipe systems to absorb and dissipate pressure surges. These devices act as shock absorbers, reducing the impact of pressure fluctuations and preventing damage to the pipe. Surge suppressors are particularly effective in situations where pressure surges are frequent or severe. 5. Pipe wall thickness: Another crucial measure for pressure surge protection in ductile iron pipe is ensuring an appropriate pipe wall thickness. By selecting a pipe with the correct wall thickness, engineers can ensure that the pipe can withstand the pressure surges it may encounter during operation. This helps prevent pipe failure or rupture due to excessive pressure. It is important to note that the specific pressure surge protection measures implemented for ductile iron pipe may vary depending on the specific application, pipe size, operating conditions, and regulatory requirements. Consulting with experts in pipeline engineering and design is crucial to determine the most suitable pressure surge protection measures for a particular ductile iron pipe system.

Q: How are ductile iron pipes protected against freeze-thaw cycles?: Several measures are taken to protect ductile iron pipes from freeze-thaw cycles. Firstly, the material used in these pipes is naturally resistant to low temperatures, allowing them to withstand freezing conditions without becoming brittle or prone to cracking. Furthermore, a protective layer such as cement mortar lining or polyethylene encasement is often applied to the pipes. This extra barrier helps insulate the pipe and prevents direct contact between the iron and the surrounding environment, reducing the risk of freeze-thaw damage. Moreover, ductile iron pipes are designed with joints that allow for movement and flexibility. This design feature helps accommodate any expansion or contraction that may occur during freeze-thaw cycles, minimizing the risk of pipe breakage or damage caused by freezing water pressure. Proper installation practices, including sufficient bedding and backfilling, are also crucial in protecting ductile iron pipes from freeze-thaw cycles. Adequate support and suitable materials surrounding the pipes help minimize the impact of freezing temperatures on the structural integrity of the pipes. Regular inspection and maintenance of ductile iron pipes are essential for identifying any potential issues resulting from freeze-thaw cycles. Periodic assessments can detect signs of damage or deterioration, allowing for timely repairs or replacement to prevent further damage. In conclusion, ductile iron pipes are safeguarded against freeze-thaw cycles through the material's inherent resistance, protective coatings, flexible joints, proper installation practices, and regular maintenance. These measures collectively ensure the durability and longevity of ductile iron pipes, even in cold weather conditions.

Q: Can ductile iron pipe be used for water treatment plant sludge handling?: Yes, ductile iron pipe can be used for water treatment plant sludge handling. Ductile iron pipe is known for its strength and durability, making it suitable for handling various types of fluids, including sludge. It can withstand the corrosive nature of sludge and is resistant to abrasion, which is important in a sludge handling system. Additionally, ductile iron pipe has a smooth interior surface, which helps to prevent clogs and allows for efficient flow of the sludge. Overall, ductile iron pipe is a reliable choice for water treatment plant sludge handling.

Q: The benefits of ductile iron castings: Nodular cast iron has developed rapidly to be second only to grey cast iron and widely used as cast iron material. The so-called "iron instead of steel", mainly refers to ductile iron

Q: Do ductile iron pipes require internal linings for potable water?: No, ductile iron pipes do not require internal linings for potable water.

Q: What are the disadvantages of using ductile iron pipes?: Using ductile iron pipes in various applications comes with several drawbacks. Firstly, these pipes tend to be more expensive compared to other types like PVC or HDPE, which can be problematic for projects with budget constraints. Secondly, their relatively heavy weight makes transportation and installation more labor-intensive and time-consuming. This increases overall project costs, especially when specialized equipment and skilled workers are required. Another disadvantage is their susceptibility to corrosion. Exposure to environmental factors, like soil conditions and water chemistry, can lead to rust and scale formation on the inner and outer surfaces of the pipe. This reduces the pipe's lifespan and potentially affects water quality. Furthermore, ductile iron pipes can crack or break under certain conditions, especially when subjected to heavy loads or significant ground movement. This necessitates costly repairs or replacements, causing additional expenses and disruptions to the water supply. Lastly, ductile iron pipes have relatively low resistance to impact and abrasion compared to other materials. This makes them more vulnerable to damage from external forces, such as construction activities or accidental impacts, resulting in increased maintenance and repair costs. In conclusion, while ductile iron pipes have advantages like high tensile strength and durability, it is crucial to consider these disadvantages before deciding to use them in a specific project.

Q: Ductile iron gears are generally treated without heat treatment: Certainly. At the very least, the casting must be annealed and other heat treatment according to the requirement of use

Q: If the ductile iron pipe is broken, can we use rush repair?: PE pipe repair section, as the name suggests, is a kind of used to repair the pipeline accessories. At present, the specifications of the repair section are: Phi 90, Phi 110, Phi 125, Phi 160, Phi 200, Phi 225, Phi 250, Phi 315 these specifications.

Q: Do ductile iron pipes require pressure testing before installation?: Before installation, it is necessary to conduct pressure testing on ductile iron pipes. This step is critical in guaranteeing the pipes' integrity and safety. Its purpose is to detect any leaks, weaknesses, or defects before the pipes are put into service. Pressure testing involves subjecting the pipes to higher-than-normal operating pressures to determine if they can endure the expected pressure without any failures. By doing so, this process prevents potential issues such as leaks, bursts, or failures that could result in water loss, property damage, or accidents. Hence, pressure testing is an indispensable requirement for ductile iron pipes to ensure their reliability and long-term performance.

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