Ductile Iron Pipe ISO2531:1998 DN900 On Sale

Ductile Iron Pipe ISO2531:1998 DN900 On Sale

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 999 m

Supply Capability:: 9999 m/month

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1,Ductile Iron Pipe Description :
1) we can do third party inspection according to customer's request.
2)Our products have been sold to many international market, such as Middle East and South East Asia and Africa.
3)Pipes confirm to ISO2531,K9 class,T type joint,6m long,with inside cements lining conform to ISO4179, outside Zinc spraying(130g/m2) and bitumen coating(70μm) conform to ISO8179.
4)Pipe ends: Spigot and socket ends, with 100% SBR rubber gaskets accoding to ISO4633
2,Main Features of the Ductile Iron Pipe:
1. Material: Ductile iron grade 500-7/ 450-10 in accordance with ISO1083
2. Standard: ISO 2531, EN545, EN598, ANSI, AWWA
3. Certificate: ISO9001, ISO14001, SGS, NSF, WRAS
4. Test: In accordance with ISO 2531 / EN 545 / EN598 and 100% water pressure test
5. Length: 6m or cut into 5.6m, 5.7m, 5.8m
6. Internal Lining: Cement, conform to ISO4179
7. External coating: Zinc + Bitumen, conform to ISO8179
8. Rubber: NBR, SBR, EPDM according to ISO4633 / EN681.1
9. Note: The gaskets, bolts & nuts are supplied respectively as your special requirement
3,Ductile Iron Pipe Images:

Ductile Iron Pipe ISO2531:1998 DN900 On Sale

4. Ductile Iron Pipe Specification
Standard: API SPEC 5L 44th eidtion,ASTM A252-98(2007)
Grade: A53 Grades A/B, ASTM A106 Grades B/C,ASTM A179
AWWA, C200, ASTM A139, ASTM A120, API 5L Grade B
X42, X52, X56, X60, X65, X70, X80, X100
Weld Alternatives: LSAW
OD size range: 6.4~44.5mm
Wall thickness: 406.4~1422mm
Length: 3 - 12 m according to requirment
Note: Other grade can also be provided after consulting. Special design are available
for coal slurry conveyance LSAW line tube -- Service
5.FAQ:
We have organized several common questions for our clients，may help you sincerely：
1.Q: Why would you choose ductile iron pipe rather than other pipe materials?
A:The reasons are obvious for that not only ductile iron pipe possesses the inherent strength and flexibility of ductile iron, combined with proven corrosion protection systems, but also the cost savings can be achieved from design to installation and commissioning.
2.Q:Why can you guarantee the inner of pipes can’t be corroded?
A: High alumina cement mortar lining and sulphate-resistant cement mortar lining. These two special linings are applicable to inner anti-corrosion for sewage pipes, improving resistance to erosion of the sewage components.

Q: What are the different methods for joining ductile iron pipe?: There are several methods for joining ductile iron pipe, including mechanical joints, flanged joints, push-on joints, and restrained joints. Mechanical joints use a rubber gasket and a series of bolts and glands to create a secure connection. Flanged joints involve bolting two flanges together with a gasket in between. Push-on joints utilize a rubber gasket and require the pipe to be pushed into the joint. Restrained joints use a combination of mechanical joints and a restraining gland to prevent movement and provide a secure connection.

Q: Are ductile iron pipes suitable for installation in areas with high seismic activity?: Yes, ductile iron pipes are suitable for installation in areas with high seismic activity. Ductile iron pipes have excellent strength and flexibility, allowing them to withstand ground movements caused by earthquakes. Their ability to absorb and distribute stress makes them a reliable choice for underground infrastructure in seismic-prone regions.

Q: How do ductile iron pipes perform in cold weather conditions?: The exceptional performance of ductile iron pipes in cold weather conditions is well-known. Unlike cast iron or PVC, ductile iron exhibits remarkable resistance to low temperatures. This resistance is primarily attributed to its unique microstructure, which enables it to maintain its structural integrity even in extreme weather conditions. In freezing temperatures, ductile iron pipes demonstrate a low coefficient of thermal expansion, meaning they do not contract or expand significantly with changes in temperature. This characteristic ensures their stability and prevents cracking or bursting. Additionally, the high impact resistance of ductile iron further enhances its ability to withstand the stress imposed by cold weather conditions. Moreover, ductile iron pipes are equipped with a protective lining, typically composed of cement mortar or epoxy. This lining acts as an additional barrier against the effects of cold weather, preventing the formation of ice on the inner surface of the pipes. Consequently, the risk of blockages or reduced flow capacity is greatly reduced. In conclusion, ductile iron pipes are a reliable choice for cold weather conditions. Their durability, low thermal expansion, and protective lining make them highly resistant to the challenges posed by freezing temperatures. Whether used for water supply, sewer systems, or other applications, ductile iron pipes have consistently proven their effectiveness even in the harshest winter climates.

Q: Are ductile iron pipes suitable for trenchless pipe ramming installations?: Yes, ductile iron pipes are suitable for trenchless pipe ramming installations. Ductile iron is a strong and durable material that can withstand the impact and stress of the ramming process. It has excellent tensile strength and can resist cracking or breaking under pressure. Additionally, ductile iron pipes are resistant to corrosion, making them a suitable choice for underground installations. The smooth interior surface of ductile iron pipes also facilitates the flow of fluids or gases. Overall, ductile iron pipes are a reliable and cost-effective option for trenchless pipe ramming installations.

Q: What are the typical surge anticipation measures for ductile iron pipe?: Typical surge anticipation measures for ductile iron pipe involve implementing various techniques to mitigate the potential damage caused by surges or water hammer in the pipe system. These measures are designed to absorb or redirect the sudden pressure changes, preventing the pipe from rupturing or failing. Some common surge anticipation measures for ductile iron pipe include: 1. Air chambers: Air chambers are installed at strategic points along the pipeline to provide a cushion of air that absorbs the energy generated by surges. As the pressure wave travels through the pipe, the air compresses, reducing the impact on the pipe and minimizing the risk of damage. 2. Surge tanks: Surge tanks are large vessels connected to the pipeline that act as storage reservoirs for excess pressure. When a surge occurs, the surge tank absorbs the excess water volume, preventing it from causing damage to the pipe. The stored water is then gradually released back into the system, allowing pressure to stabilize. 3. Surge relief valves: Surge relief valves are installed in the pipeline to automatically release excess pressure during surge events. These valves open when the pressure exceeds a preset limit, allowing the surge to dissipate harmlessly. Surge relief valves can be adjusted to release the desired amount of pressure, ensuring the safety of the ductile iron pipe. 4. Water hammer arrestors: Water hammer arrestors are devices that absorb the shock generated by surges and water hammer in the pipe system. They consist of a sealed chamber with a compressible gas or liquid that absorbs the sudden pressure changes. By absorbing the energy, water hammer arrestors protect the ductile iron pipe from potential damage. 5. Surge suppressors: Surge suppressors are devices that regulate the flow of water during surge events. They are designed to reduce the speed at which surges travel through the pipe, minimizing the impact on the system. Surge suppressors can be installed at critical points in the pipeline to prevent damage to the ductile iron pipe. It is essential to consider the specific requirements of the pipeline system and consult with experienced engineers or industry professionals to determine the most suitable surge anticipation measures for ductile iron pipe installations.

Q: What are the different types of restrained joints for ductile iron pipe?: There are several different types of restrained joints for ductile iron pipe. These joints are designed to prevent pipe separation or movement due to internal pressure, external forces, or ground movement. Some of the commonly used restrained joints for ductile iron pipe include: 1. Mechanical Restrained Joint: This type of joint uses mechanical devices such as bolts, nuts, and gaskets to hold the pipe in place. The joint is typically made up of a gland, a gland follower, and a restraint ring. The gland and gland follower compress the gasket against the pipe, while the restraint ring provides additional support and resistance against movement. 2. Push-on Restrained Joint: This joint utilizes a rubber gasket that is compressed when the two pipe ends are pushed together. The gasket provides a tight seal and also acts as a restraint against movement. Some push-on restrained joints also include additional mechanical devices to enhance the restraint capability. 3. Restrained Flange Joint: This type of joint combines the features of a flanged joint and a restrained joint. It consists of a flanged pipe end that is bolted to a flange on another pipe or fitting. The bolts and nuts provide the mechanical restraint, while the flange connection ensures a secure and leak-free joint. 4. Restrained Coupling Joint: This joint is a variation of the mechanical restrained joint. It utilizes a coupling that is bolted or clamped around the pipe ends, providing the necessary restraint. The coupling may also have a gasket to ensure a tight seal. 5. Restrained Socket Joint: This joint is similar to the push-on restrained joint, but it includes additional mechanical devices to enhance the restraint capability. The socket end of the pipe is typically designed to receive a pipe spigot, which is then secured using bolts, clamps, or other mechanical devices. These different types of restrained joints for ductile iron pipe offer varying levels of restraint and are selected based on the specific requirements of the application. They ensure the integrity and stability of the pipeline system, reducing the risk of leaks, pipe separation, or movement.

Q: What are the different methods for repairing ductile iron pipe?: There are several methods for repairing ductile iron pipe, including mechanical repair, epoxy repair, and welding. Mechanical repair involves using clamps or couplings to seal leaks or cracks in the pipe. Epoxy repair involves applying an epoxy coating or sealant to the damaged area to prevent further corrosion or leaks. Welding is another method used for repairing ductile iron pipe, where the damaged section is cut out and replaced with a new piece that is welded into place.

Q: Can ductile iron pipes be used for conveying gases?: Indeed, gases can be conveyed using ductile iron pipes. Ductile iron, renowned for its strength and durability, is capable of enduring high pressures and temperature fluctuations, rendering it appropriate for gas transportation. Furthermore, ductile iron pipes possess exceptional resistance to corrosion, a crucial attribute when handling potentially corrosive gases. Nevertheless, it is of utmost importance to verify the compatibility between the specific gas being conveyed and ductile iron, in order to avert any chemical reactions or pipe damage. To ensure the secure and efficient conveyance of gases through ductile iron pipes, one must carefully consider proper engineering design and material selection.

Q: What is the difference between a PE fire hose and a ductile iron pipe?: Cast iron pipe: cast pipe made of cast iron. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings. Labor intensity is small. According to the casting method, it is divided into continuous cast iron pipe and centrifugal cast iron pipe, in which the centrifugal cast iron pipe is divided into sand mould and metal type two kinds. Divided into gray cast iron pipe and nodular cast iron pipe according to different material. According to the interface form, it is divided into flexible interface, flange interface, self anchored interface, rigid interface and so on. Among them, the flexible iron pipes rubber sealing ring; flange interface cast iron pipe flange fixed in the rubber pad, the flange gasket sealing; rigid interface cast iron pipe socket is large, straight pipe is inserted, sealed with cement, this technology has been basically eliminated.

Q: Are there any limitations to the length of ductile iron pipe sections?: Yes, there are limitations to the length of ductile iron pipe sections. The length of ductile iron pipe sections is typically limited due to practical considerations such as transportation, installation, and handling. Longer pipe sections can be more difficult to transport and maneuver, especially in areas with limited access or challenging terrain. Additionally, longer pipe sections may be more prone to damage during installation, as they can be more difficult to align and join properly. There are also limitations in terms of manufacturing capabilities. Ductile iron pipes are typically manufactured in standard lengths, which can vary depending on the manufacturer and the specific application. These standard lengths are typically designed to balance the needs of transportation, installation, and the overall performance of the pipe. Furthermore, longer pipe sections may pose challenges in terms of expansion and contraction due to temperature variations. Ductile iron pipes are susceptible to thermal expansion and contraction, and longer sections may experience greater stress and strain as a result. Therefore, while there is no absolute limit to the length of ductile iron pipe sections, practical considerations and manufacturing capabilities often result in the use of standard lengths that balance various factors such as transportation, installation, and performance.

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