DUCTILE IRON PIPE K7 DN 1000 SOCKET SPIGOT PIPE

DUCTILE IRON PIPE K7 DN 1000 SOCKET SPIGOT PIPE

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 2000 m.t.

Supply Capability:: 30000 m.t./month

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Specification:

1) The standard of pipe: ISO2531:1998, EN545:2006，K9 K8

2) Effective length: 6m/5.7m

3) Inner cement line: Portland cement lineas per ISO4179

4) Zinc coating: at least 130g/m² as per ISO8179

5) Bitumen painting: at least 70μm as per ISO8179

6)With 102% quantity of NBR, SBR, or EPDM ring asper ISO4633

7) DN80-DN1200

8) Highstrength, lighter than grey iron, good corrosion resistance, no furring, smallflow resistance, easy fixing, long life tome about 100 yeas

9)Checked by automatic inspection equipment

10) Composition:

Chemical composition
Chemical composition	Ductile Cast Iron Pipe (%)	Grey iron pipe (%)	Steel pipe (%)
C	3.5-4.0	3.2-3.8	0.1-0.2
Si	1.9-2.6	1.4-2.2	0.15-0.4
Mn	0.15-0.45	0.4-0.6	0.3-0.6
P	≤0.06	≤0.3	0.02-0.03
S	≤0.02	≤0.1	0.02-0.03
Mg	0.03-0.06

11) Feature:

Mechanical properties
	Ductile Cast Iron Pipe	Grey Iron Pipe	Steel Pipe
Tensile Strength(Mpa)	≥420	150-260	≥400
Yield Strength(Mpa)	≥300	No Confirmation	No Confirmation
Bending Strength(Mpa)	≥590	200-360	≥400
Elongation (%)	≥10	Neglected	≥18
Brinell Hardness(HBS)	≤230	≤230	About 140

12) T type mechanical joint

13) Packing: in bulk or container

PACKING: 1) Pipesare bundled together with the steel belt.

2) Wooden pieces are put between the pipes.

Q: What is the average cost of ductile iron pipes?: The average cost of ductile iron pipes can vary depending on various factors such as diameter, length, and location. On average, ductile iron pipes can range from $30 to $100 per linear foot. For example, a 6-inch diameter ductile iron pipe with a length of 20 feet may cost around $600 to $2,000. It's important to note that these prices are estimates and can change based on market conditions, project specifications, and supplier pricing. Therefore, it is recommended to consult with local suppliers or contractors to obtain accurate pricing information for specific projects.

Q: Can ductile iron be welded? Is weldability comparable to gray iron?: Suitable for the full range of cold welding welding, welding cast iron base material can almost all, and it is easy to achieve cast iron and carbon steel dissimilar metal welding, such as solving matrix fracture, crack, wear, hole filling defects after welding can be machined, many applications in the engine casing, cylinder head, casting machine, gear base the tooth of iron castings.

Q: Can ductile iron pipes be used for irrigation canal lining?: Yes, ductile iron pipes can be used for irrigation canal lining. Ductile iron pipes are known for their strength, durability, and resistance to corrosion, making them suitable for various applications including irrigation systems. They can withstand the pressure of water flow and provide a reliable and long-lasting solution for canal lining in irrigation projects.

Q: The difference between ductile cast iron pipe and machine-made cast iron pipe: Production process is different, ductile iron pipe mainly through intermediate frequency furnace heating, annealing, and then do cement lining cement lining production, the mechanism of cast iron pipe does not make cement lining.

Q: Can ductile iron pipe be used for potable water systems?: Yes, ductile iron pipe can be used for potable water systems. Ductile iron is a strong and durable material that is resistant to corrosion and can withstand high pressure and flow rates. It has been widely used in potable water systems for many years due to its reliability and longevity. However, it is important to ensure that the pipe is properly coated or lined to prevent any leaching of iron into the water.

Q: Can ductile iron pipes be used for trenchless pipe rehabilitation methods?: Yes, ductile iron pipes can be used for trenchless pipe rehabilitation methods. Trenchless pipe rehabilitation methods involve repairing or rehabilitating existing pipelines without the need for extensive excavation or trenching. Ductile iron pipes are commonly used in these methods due to their durability, strength, and resistance to corrosion. They can be rehabilitated using various trenchless methods such as pipe lining, pipe bursting, and slip lining. These methods involve inserting a new lining or pipe inside the existing ductile iron pipe, thereby extending its lifespan and improving its structural integrity. Ductile iron pipes are preferred for trenchless rehabilitation as they can withstand the forces and pressures involved in the process while providing a long-lasting and reliable solution.

Q: Principles for the antiseptic treatment of ductile iron pipes: Anti corrosion process of ductile iron pipe:1. asphalt paint coatingBituminous paint coatings are pipes used to carry gas. Preheating the pipe before spraying can improve the adhesion of asphalt paint and accelerate drying.2. cement mortar lining + special coatingThe internal corrosion prevention measures are suitable for pipes conveying sewage, and the corrosion resistance of lining can be improved.3. epoxy coal tar coatingThe epoxy coal tar coating is not only suitable for gas pipelines, but also for sewage pipes. It is a two component coating with a high adhesion and a very smooth surface

Q: How are ductile iron pipes protected against internal corrosion caused by chemicals?: To safeguard against internal corrosion caused by chemicals, ductile iron pipes implement various protective measures. Primarily, these pipes are equipped with either a cement mortar lining or an epoxy coating, creating a barrier between the water or sewage's chemical substances and the iron material. This barrier effectively prevents direct contact, thereby averting corrosion. Additionally, a corrosion-resistant polymer or bituminous coating is frequently applied to the pipes' exterior. This supplementary layer of protection shields the pipes from potential chemical exposure originating externally. Moreover, cathodic protection is a commonly employed technique to counter internal corrosion. Sacrificial anodes, typically composed of zinc or magnesium, are affixed to the pipes. Over time, these anodes undergo corrosion instead of the iron, sacrificing themselves to safeguard the pipes against chemical-induced corrosion. Furthermore, regular maintenance and monitoring play a crucial role in the prevention and rectification of corrosion issues. This entails routine inspections, cleaning, and prompt repair of any corroded or damaged areas. Overall, the integration of lining, external coating, cathodic protection, and maintenance practices ensures the comprehensive protection of ductile iron pipes against internal corrosion caused by chemicals. This prolongs their lifespan and guarantees the integrity of the pipeline system.

Q: What are the different sizes of ductile iron pipes available?: Ductile iron pipes are available in a variety of sizes to cater to different applications and requirements. The sizes of ductile iron pipes typically range from 3 inches to 64 inches in diameter. These different sizes allow for flexibility and adaptability in various industries such as water supply, sewage systems, irrigation, and industrial piping. The smaller diameter ductile iron pipes, such as those in the range of 3 to 12 inches, are commonly used for residential and small-scale applications like household plumbing, fire hydrant systems, and small irrigation projects. These sizes are often found in urban areas and residential neighborhoods. For more extensive applications, larger diameter ductile iron pipes are utilized. They can range from 14 inches up to 64 inches in diameter. These larger pipes are predominantly used in municipal water supply systems, wastewater treatment plants, and industrial facilities where high-volume water flow is required. The availability of a wide range of sizes in ductile iron pipes ensures that they can accommodate various flow rates and pressure requirements. It allows engineers, contractors, and designers to select the appropriate size based on the specific needs of a particular project or application. It is essential to consult industry standards, local regulations, and engineering guidelines to determine the suitable size of ductile iron pipes for any specific project. This ensures that the pipes are capable of meeting the required performance standards and are suitable for the intended use.

Q: How are ductile iron pipes tested for hydrostatic pressure?: Ductile iron pipes are commonly used for water and wastewater applications due to their strength and durability. To ensure the quality and reliability of these pipes, they undergo hydrostatic pressure testing. Hydrostatic pressure testing involves subjecting the ductile iron pipes to internal pressure higher than their normal operating pressure. This is done to assess their ability to withstand the maximum pressure they are expected to encounter during their service life. The testing process typically begins with the selection of a sample set of pipes from a production batch or shipment. These samples are carefully prepared by removing any surface coatings or debris that could affect the accuracy of the test results. Next, the prepared samples are placed within a specially designed test rig or test line. The test rig is equipped with all the necessary connections, valves, and gauges to control and monitor the test conditions accurately. Once the samples are secured in the test rig, water or another suitable test fluid is slowly introduced into the pipes. The pressure is then gradually increased to a predetermined level, typically exceeding the expected operating pressure by a certain factor. This elevated pressure is maintained for a specified duration, usually for several hours, to assess the pipes' structural integrity and leak resistance. During the test, the pipes are closely monitored for any signs of leakage, deformation, or failure. Skilled technicians or engineers observe the pressure gauges and visually inspect the pipes for any visible defects or abnormalities. Additionally, automated systems may be employed to continuously record and analyze the pressure readings, ensuring accurate data collection. After the specified test duration, the pressure is gradually released, and the pipes are carefully inspected for any permanent deformation or residual stress. This inspection may involve visual examination, dimensional measurements, or even non-destructive testing techniques such as ultrasonic testing or magnetic particle inspection. The test results are then evaluated against the relevant industry standards or specifications to determine the pipes' compliance with safety and performance requirements. If the pipes pass the hydrostatic pressure test, they are deemed suitable for their intended application. However, if any issues or failures are identified, further investigation, analysis, or corrective actions may be necessary before the pipes can be approved for use. Overall, hydrostatic pressure testing plays a crucial role in ensuring the quality and reliability of ductile iron pipes. By subjecting these pipes to rigorous testing procedures, manufacturers can provide customers with pipes that meet the highest standards of safety and performance.

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