DUCTILE IRON PIPE K7 DN 100 SOCKET SPIGOT PIPE

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 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: How do ductile iron pipes perform in acidic soil conditions?: Ductile iron pipes are known for their durability and resistance to various environmental conditions, including acidic soil conditions. When exposed to acidic soil, ductile iron pipes demonstrate excellent corrosion resistance due to their unique composition and protective coating. The high carbon content in ductile iron pipes provides them with inherent resistance to corrosion, even in acidic environments. Additionally, the pipes are typically lined with cement mortar or a suitable epoxy coating, which acts as an additional layer of protection against acid attack. The combination of the high carbon content and protective coating creates a barrier that prevents the acid from directly contacting the iron, thus minimizing the risk of corrosion. This ensures that the pipes remain structurally sound and maintain their integrity over an extended period of time. Furthermore, ductile iron pipes have a long service life and are designed to withstand a wide range of soil conditions. Their inherent strength and flexibility enable them to endure the stresses and strains caused by the surrounding soil, including acidic soil environments. This makes them an ideal choice for applications where the soil has a higher acidity level. It is important to note that while ductile iron pipes perform well in acidic soil conditions, the severity and concentration of the acid can impact their performance. In extremely aggressive or highly concentrated acidic environments, additional corrosion protection measures may be necessary, such as the use of sacrificial anodes or cathodic protection systems. In conclusion, ductile iron pipes are highly resilient and perform exceptionally well in acidic soil conditions. Their corrosion resistance, combined with their robust structure and protective coating, ensures their longevity and reliability, making them a preferred choice for various applications in such environments.

Q: The difference between ductile cast iron pipe and machine-made cast iron pipe: Different appearance, ductile iron pipe single length of 6 meters, large wall thickness; mechanism cast iron pipe single length of 3 meters, the wall thickness is thin.

Q: Ductile iron pipes perennial bubbles in the water will rot it: Ductile iron pipes mainly called centrifugal ductile iron pipe, it has the properties of nature, iron and steel, excellent corrosion resistance, good ductility, good sealing effect, simple installation, mainly for municipal, industrial and mining enterprises, water supply, gas, oil etc..

Q: How are ductile iron pipes protected against external soil loads?: Several methods are employed to protect ductile iron pipes from external soil loads. An important approach involves applying a protective coating to the exterior surface of the pipe, which acts as a barrier between the iron and the surrounding soil. This coating effectively prevents direct contact and reduces the risk of corrosion. Another means of safeguarding the pipes is by utilizing carefully selected trench backfill materials. These materials are compacted and chosen with great care to provide adequate support and distribute the load evenly on the pipe. By doing so, the stress and pressure exerted by the surrounding soil are minimized. Moreover, the design and installation of the pipe system play a crucial role in protecting against external soil loads. Typically, the pipes are laid in a meticulously engineered trench that incorporates appropriate bedding and backfilling techniques. This ensures stability and minimizes the potential for damage. Additionally, proper pipe jointing techniques are essential for protection against external soil loads. The joints are often designed to be flexible, allowing for some movement and accommodating external loads. This distributes stress along the length of the pipe and prevents concentrated pressure points that could lead to failure. In conclusion, the effective protection of ductile iron pipes against external soil loads is achieved through a combination of protective coatings, appropriate backfill materials, proper installation techniques, and joint design. This guarantees the durability and reliability of the pipe system, even in challenging soil conditions.

Q: Are ductile iron pipes suitable for gravity sewer systems?: Yes, ductile iron pipes are suitable for gravity sewer systems. Ductile iron pipes have several properties that make them well-suited for this application. Firstly, ductile iron pipes have high tensile strength, which means they can withstand the weight of the soil and other loads placed on them in a gravity sewer system. This strength allows the pipes to resist deformation and maintain their structural integrity over time. Additionally, ductile iron pipes have excellent corrosion resistance. This is important in sewer systems as they are often exposed to harsh and corrosive environments. The corrosion resistance of ductile iron pipes ensures their long-term durability and reduces the need for maintenance and repairs. Furthermore, ductile iron pipes have a smooth internal surface, which allows for efficient flow of wastewater in gravity sewer systems. The smooth surface minimizes friction and prevents the accumulation of debris and sediment, reducing the risk of blockages and improving the overall performance of the system. Moreover, ductile iron pipes are highly resistant to damage from external forces such as ground movements or heavy traffic. This makes them a reliable choice for gravity sewer systems, where the pipes may be subjected to various external stresses. Overall, the combination of high tensile strength, corrosion resistance, smooth internal surface, and resistance to external forces makes ductile iron pipes a suitable and reliable choice for gravity sewer systems.

Q: How to correctly measure ductile iron pipe: This need to find the right tools, Michi, caliper, amount to ductile pipe and pipe fittings and pipe fittings of the outer diameter, inner diameter, length and wall thickness were measured, eleven.

Q: How to analyze and judge the quality of ductile iron pipe: On the quality of single pipe can analyze it from the surface is sand type and water cooled pipes, K8 pipe is different from Shanxi root nature is that the proportion of grade K9 cement and cast iron pipe and the K8 pipe are different, there is no national standard and non standard, no K8 tube, only is the production plant in order to obtain more profits, the dealer is not up to the national standard K9 grade pipe called K8 grade ductile pipe, K9 pipe cement weighs about 1/5 weight of the pipe, but is played in the role of anti-corrosion, the so-called K8 class water mud proportion some manufacturers terrifying 3/4 or 3/5, as the water supply pipe 3/5 or no personally think that two of the proportion of the tube is no problem

Q: Is there any cast iron pipe used in the fire hose?: I don't know, I only know that the fire pipes produced by our company is the base tube is a pipe, and then coated with a corrosion and non-toxic, long service life, we are Suzhou Yuyao Pipe Industry Co. Ltd. is a professional production of the manufacturers, oh

Q: How are ductile iron pipes protected against erosion caused by high-velocity flow?: Ductile iron pipes are protected against erosion caused by high-velocity flow through various methods. One common approach is to apply an internal lining to the pipe, which can be made of materials such as cement mortar or polyethylene. This lining provides a smooth surface that reduces the friction and turbulence of the flowing water, thus minimizing the erosion potential. Additionally, external coatings, such as bitumen or epoxy, can be applied to protect the outer surface of the pipe from erosion caused by external factors like soil movement or abrasive materials. Regular inspection and maintenance of the pipes also play a crucial role in identifying and addressing any erosion-related issues to ensure their long-term durability.

Q: Can ductile iron pipe be used in corrosive environments?: Yes, ductile iron pipe can be used in corrosive environments. Ductile iron is known for its excellent corrosion resistance due to its protective oxide layer, making it suitable for various corrosive applications such as wastewater, chemical plants, and underground installations.

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