DUCTILE IRON PIPES AND PIPE FITTINGS C CLASS DN100

DUCTILE IRON PIPES AND PIPE FITTINGS C CLASS DN100

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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 different methods for joining ductile iron pipe?: There are several methods for joining ductile iron pipe, each with its own advantages and limitations. One common method is mechanical joint (MJ) coupling, which involves using a rubber gasket and a set of bolts and nuts to create a watertight seal between pipe sections. This method is relatively quick and easy to install, but it requires a skilled technician to ensure proper alignment and bolt tightening to prevent leakage. Another method is flanged joint, where the pipe ends are equipped with flanges that are bolted together using gaskets to create a tight seal. This method allows for easy disassembly and reassembly of pipe sections, making it suitable for applications that require frequent maintenance or modifications. However, it is more expensive and time-consuming compared to other methods. One widely used method is push-on joint (POJ), which involves using a rubber gasket and a special lubricant to slide the pipe ends together. This method provides a reliable and watertight seal, and it is relatively quick and easy to install. However, it requires proper alignment and care to avoid damaging the gasket during assembly. Another option is restrained joint (RJ), which uses a mechanical joint coupling with additional features to resist axial forces or thrusts. This method is commonly used in applications where the pipe is subject to internal pressure, external loads, or seismic activity. It provides a secure and rigid connection but may require specialized tools and training for installation. Finally, welding is another method for joining ductile iron pipe. It involves heating the pipe ends and melting a filler metal to create a permanent bond. This method provides a strong and durable connection, but it requires skilled welders and additional time for preparation, welding, and cooling. Welding is often used for specific applications, such as joining sections of pipe with different diameters or connecting to other materials. In summary, the different methods for joining ductile iron pipe include mechanical joint coupling, flanged joint, push-on joint, restrained joint, and welding. The choice of method depends on factors such as the application requirements, installation time, maintenance needs, and budget.

Q: Are ductile iron pipes resistant to alkali attacks?: Ductile iron pipes have been proven to be highly resistant to alkali attacks. The material used in ductile iron pipes, known as ductile cast iron, is formulated with specific chemical compositions that provide exceptional corrosion resistance. This resistance extends to alkali attacks, which are chemical reactions that occur when alkaline substances come into contact with metals or other materials. Ductile iron pipes have a dense and protective oxide film on their inner and outer surfaces, which acts as a barrier against chemical attacks. This oxide film forms naturally over time, and its composition and structure provide excellent resistance to alkali attacks. Additionally, ductile iron pipes are often coated with various protective layers, such as epoxy or zinc, to further enhance their resistance to corrosion and chemical reactions. It is important to note that while ductile iron pipes are highly resistant to alkali attacks, the severity and concentration of the alkali substances can still impact their overall performance. In extreme cases, very high concentrations of alkali substances or prolonged exposure to aggressive alkaline environments may eventually cause some damage to the protective layers of the pipes. However, under normal conditions and within acceptable parameters, ductile iron pipes are considered to have excellent resistance to alkali attacks.

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 involve the use of mechanical joint restraints or restrained joint systems. These restraints are necessary to prevent the pipes from separating or pulling apart due to the internal pressure exerted on them. One common type of joint restraint is the mechanical joint restraint, which consists of a series of bolts and clamps that securely hold the pipes together. These restraints are typically applied at each joint of the ductile iron pipes to ensure a tight and secure connection. Mechanical joint restraints provide axial restraint, preventing the pipes from separating in the direction of the pipe axis. Another type of joint restraint used for ductile iron pipes is the restrained joint system. This system involves the use of a specially designed joint that provides both axial and angular restraint. The restrained joint system typically consists of a gasket, a restraining gland, and a series of bolts or wedges. The gasket provides a watertight seal, while the restraining gland and bolts/wedges restrain the pipe joints, preventing separation under pressure. The specific joint restraint requirements for ductile iron pipes under pressure may vary depending on the diameter, wall thickness, and operating conditions of the pipes. It is important to consult the manufacturer's guidelines and industry standards to determine the appropriate joint restraint system for a given application. Additionally, proper installation and maintenance of the joint restraints are crucial to ensure their effectiveness and longevity in restraining the pipes.

Q: How to correctly measure ductile iron pipe: The outer diameter of the ball tube is measured around the outer edge of the pipe. The caliper is used to measure the inside diameter of the pipe. The length of the pipe is measured by a ruler or tape measure,

Q: Which is better, ductile iron pipe and spray plastic pipe?: Ductile iron pipe corrosion resistance, strength, it is said that the Ming Dynasty ordinary cast iron works now, and now has a new type of dedicated, can be used, construction becomes very convenient, ductile iron pipe has no effect on water quality. Plastic sprayed steel pipe is a new type of pipeline with higher price.

Q: Can ductile iron pipe be used for nuclear power plants?: Yes, ductile iron pipe can be used for certain applications in nuclear power plants. Ductile iron pipe is known for its strength, durability, and corrosion resistance, making it suitable for various industrial and infrastructure projects. However, when it comes to nuclear power plants, specific factors need to be considered. One of the primary concerns in a nuclear power plant is the safety and reliability of the materials used. While ductile iron pipe meets many requirements, it may not be the ideal choice for critical applications such as transporting radioactive fluids or handling high-pressure or high-temperature systems within the plant. These applications often require materials with exceptional resistance to corrosion, stress, and radiation damage. In nuclear power plants, other materials like stainless steel, nickel alloys, or even specialized materials like Inconel are commonly used due to their superior properties. These materials offer better resistance to radiation-induced embrittlement, corrosion, and high-temperature and high-pressure conditions. Therefore, while ductile iron pipe may have its uses in non-critical applications within nuclear power plants, it is important to consult industry experts, engineers, and comply with relevant nuclear safety regulations to determine the most appropriate materials for specific applications within the plant.

Q: What are the different types of joints used in ductile iron pipes?: The different types of joints used in ductile iron pipes include push-on joints, restrained joints, mechanical joints, flanged joints, and welded joints.

Q: Are ductile iron pipes suitable for use in food processing plants?: Ductile iron pipes are indeed suitable for use in food processing plants due to their numerous advantageous qualities. Firstly, they possess immense strength and durability, enabling them to withstand high-pressure situations. This feature proves crucial in food processing plants where pipes encounter diverse pressures during liquid and slurry transportation. Moreover, ductile iron pipes exhibit exceptional resistance to corrosion. This attribute becomes paramount in food processing plants as the pipes come into contact with various types of food, beverages, and cleaning agents, which can gradually corrode them. The corrosion resistance of ductile iron pipes ensures the pipes' integrity and safeguards the food products from contamination. Furthermore, these pipes display remarkable resistance to temperature fluctuations, rendering them suitable for the extreme temperature conditions often present in food processing plants. They can endure both hot and cold fluids without compromising their structural integrity. Additionally, ductile iron pipes possess a smooth inner surface, contributing to the maintenance of food product quality and purity. The smooth interior minimizes deposits like scaling or biofilm, thereby reducing the risk of bacterial growth. This quality proves essential in food processing plants where maintaining a hygienic environment is of utmost importance. Lastly, ductile iron pipes are easy to install and maintain. They boast a lengthy service life and require minimal upkeep, thereby minimizing downtime and associated costs in food processing plants. Considering these factors, ductile iron pipes emerge as a reliable and suitable choice for use in food processing plants. They ensure the safe and efficient transportation of fluids while meeting the industry's stringent hygiene and quality requirements.

Q: Can ductile iron pipes be used for underground river crossings?: Yes, ductile iron pipes can be used for underground river crossings. Ductile iron pipes are known for their strength and durability, making them suitable for various applications including underground river crossings. These pipes have a high tensile strength and can withstand the external loads and pressures exerted by the surrounding soil and water. Additionally, they have excellent corrosion resistance, which is crucial when dealing with underground water sources like rivers. Ductile iron pipes are also capable of withstanding ground movements, settling, and other geological challenges that may occur during the installation and operation of underground river crossings. Therefore, they are a reliable choice for ensuring the safe and efficient transportation of water across rivers while maintaining the integrity of the underground infrastructure.

Q: Can ductile iron pipes be used for trenchless installations?: Indeed, trenchless installations can utilize ductile iron pipes. Horizontal directional drilling (HDD) and pipe bursting techniques have gained considerable popularity as alternatives to the conventional open-cut trenching method for underground utility installations. Ductile iron pipes possess the necessary qualities of strength, durability, and flexibility, rendering them suitable for trenchless installations. They can endure the formidable forces encountered during HDD and pipe bursting operations without jeopardizing their structural integrity. Moreover, ductile iron pipes exhibit remarkable resistance to corrosion, establishing them as a dependable option for trenchless applications.

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