DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN1300

DUCTILE IRON PIPES AND PIPE FITTINGS K8 CLASS DN1300

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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 internal lining used in ductile iron pipes?: The internal lining used in ductile iron pipes is typically a cement mortar lining. This lining is applied to the inside surface of the pipe to protect it from corrosion and abrasion. The cement mortar lining helps to extend the lifespan of the pipes and ensures they can withstand the harsh conditions of transporting water or sewage. Additionally, the lining also improves the hydraulic efficiency of the pipes by reducing friction and preventing the formation of biofilms or deposits on the inner surface. Overall, the use of cement mortar lining in ductile iron pipes is essential for maintaining the integrity and functionality of the infrastructure.

Q:Can ductile iron pipe be used for underground applications?: Indeed, underground applications can employ ductile iron pipe. Renowned for its robustness and endurance, ductile iron pipe proves to be well-suited for a multitude of underground uses, including water and sewage systems, gas pipelines, and irrigation systems. Its exceptional resistance to corrosion and external burdens renders it a dependable selection for underground installations, where sustained functionality and structural soundness are pivotal considerations. Moreover, ductile iron pipe's pliability enables it to endure ground shifting and settling sans fracturing or shattering, making it an apt choice for regions susceptible to seismic occurrences.

Q:What are the different joint types available for ductile iron pipe?: Ductile iron pipes offer a range of joint types, each with its own benefits and uses. The most commonly employed joint types in ductile iron pipe installations include: 1. Push-on Joint: This type involves inserting a rubber gasket into a groove on the pipe's spigot end. The pipe is then pushed into the bell end of the adjacent pipe, creating a watertight seal. Push-on joints are known for their quick and easy installation, making them perfect for applications that require efficiency. 2. Mechanical Joint: This joint relies on a gland and follower gasket, which are compressed between the spigot end of one pipe and the bell end of another. Bolts and nuts are used to secure the joint, ensuring a tight and secure connection. Mechanical joints provide excellent integrity and are used in applications with higher pressures or heavy loads. 3. Flanged Joint: Flanged joints utilize flanges on the pipe ends, which are bolted together with gaskets to achieve a leak-proof connection. These joints are commonly employed in situations where pipes need to be easily disconnected and reconnected, such as pump stations or valve connections. 4. Restrained Joint: These joints are specifically designed to prevent pipes from separating under high internal pressures or external forces. They typically incorporate mechanical joints with additional restraining devices like harnesses, rods, or thrust blocks. Restrained joints are commonly used in applications where pipe movement poses a risk or stability is crucial. It is important to consider factors like the application, operating conditions, and project requirements when selecting a joint type. Consulting a professional engineer or pipe manufacturer is advisable to ensure the most suitable joint type is chosen for a specific ductile iron pipe installation.

Q:Disadvantages of ductile iron pipes: The strength of nodular cast iron is comparable to that of cast steel. Ductile iron has higher yield strength, the lowest yield strength is 40K, while the yield strength of cast steel is only 36k.

Q:Are ductile iron pipes suitable for use in mining applications?: Yes, ductile iron pipes are suitable for use in mining applications. They possess excellent strength, durability, and resistance to corrosion, making them ideal for transporting fluids and materials in the harsh and demanding conditions of mining operations. Additionally, their ductility enables them to withstand high pressures and impacts, ensuring reliable performance and long service life in mining environments.

Q:What is the expected fire resistance of ductile iron pipes?: The expected fire resistance of ductile iron pipes is high due to their ability to withstand high temperatures without losing structural integrity. They have a melting point of approximately 1200°C, making them suitable for applications where fire protection is crucial.

Q:What does "K8" mean in ductile iron pipe grades?: In wall thickness, K is the standard for wall thickness. The smaller the figure, the thinner the wall thickness of the same specification.For example, the K7 wall thickness of K8 is less than K8, and the wall thickness of DN500 is less than K9

Q:How are ductile iron pipes protected against freeze-thaw cycles?: Ductile iron pipes are protected against freeze-thaw cycles through several measures. Firstly, the material used in ductile iron pipes is inherently resistant to low temperatures and can withstand freezing conditions without becoming brittle or prone to cracking. Additionally, the pipes are often coated with a protective layer, such as cement mortar lining or polyethylene encasement, to provide an extra barrier against freeze-thaw damage. These coatings serve to insulate the pipe and prevent direct contact between the iron and the surrounding environment. Furthermore, ductile iron pipes are commonly designed with joints that allow for movement and flexibility, which helps to accommodate any expansion or contraction that may occur during freeze-thaw cycles. This flexibility reduces the risk of pipe breakage or damage due to the pressure exerted by freezing water inside the pipe. Moreover, proper installation practices, including adequate bedding and backfilling, are crucial in protecting ductile iron pipes against freeze-thaw cycles. Ensuring that the pipes are properly supported and surrounded by suitable materials helps to minimize the impact of freezing temperatures on the structural integrity of the pipes. Regular inspection and maintenance of ductile iron pipes are also essential in identifying any potential issues caused by freeze-thaw cycles. Periodic assessments can help detect any signs of damage or deterioration, enabling timely repairs or replacement to prevent further damage. In summary, ductile iron pipes are protected against freeze-thaw cycles through the inherent resistance of the material, protective coatings, flexible joints, proper installation practices, and regular maintenance. These measures collectively contribute to the durability and longevity of ductile iron pipes, even in cold weather conditions.

Q:Can ductile iron pipe be used for water supply to remote areas?: Yes, ductile iron pipe can be used for water supply to remote areas. Ductile iron pipe is known for its durability, strength, and corrosion resistance, making it suitable for long-distance water supply systems. It can withstand challenging terrains and harsh weather conditions, ensuring reliable water supply to remote areas.

Q:What is the maximum allowable deflection for ductile iron pipes?: The maximum allowable deflection for ductile iron pipes is typically limited to 2% of the pipe's diameter.

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