DUCTILE IRON PIPES AND PIPE FITTINGS K7 DN350

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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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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: How do ductile iron pipes handle ground settlement?: Ductile iron pipes have the ability to withstand ground settlement due to their flexibility and resilience. The inherent ductility of the material allows the pipes to absorb and distribute the stress caused by ground movement, minimizing the risk of damage or failure. Additionally, the joints of ductile iron pipes are designed to provide flexibility, allowing for slight movement and accommodating ground settlement without compromising the integrity of the pipeline system.

Q: How can the ductile iron pipe depress the elbow so as to prevent it from being opened?: The way to connect with the pipe is: direct welding (the most commonly used way), flange connection, hot melt connection, electric melting connection, threaded connection and socket connection. According to the production process can be divided into: welding elbow, stamping elbow, push elbow, casting elbow, etc..

Q: What is the expected joint flexibility of ductile iron pipes?: The expected joint flexibility of ductile iron pipes is typically high, as they are designed to accommodate slight movements and stresses caused by ground settlement or thermal expansion and contraction.

Q: What is the expected internal lining material for ductile iron pipes?: The expected internal lining material for ductile iron pipes is typically cement mortar or polyethylene.

Q: What is the expected sound attenuation of ductile iron pipes?: Several factors can affect the expected sound attenuation of ductile iron pipes. Generally, these pipes have good sound attenuation properties due to their dense construction and thick walls. The density of the material helps absorb and dampen sound waves, reducing noise transmission. Additionally, the thickness of the pipe walls adds an extra barrier for sound to pass through, contributing to sound attenuation. However, it's important to consider other factors that can influence the specific sound attenuation of ductile iron pipes. These factors include pipe diameter, wall thickness, installation method, and the surrounding environment. For example, larger diameter pipes may have slightly lower sound attenuation compared to smaller diameter pipes due to their increased surface area. Additionally, variations in wall thickness can affect the sound insulation properties. During installation, the presence of joints or fittings in the pipeline can create points where sound can transmit, reducing sound attenuation. Therefore, it is recommended to use proper installation techniques that minimize the use of joints and fittings to enhance sound attenuation. The surrounding environment also plays a role in sound attenuation. For instance, if the pipes are buried in soil, the composition and density of the soil can affect sound transmission properties. Moreover, the presence of other structures or materials nearby may influence the overall sound attenuation performance. To determine the specific expected sound attenuation of ductile iron pipes for a particular application, it is advisable to consult manufacturer specifications or seek assistance from acoustic engineering professionals. They can consider all relevant factors and conduct specific tests or simulations to provide accurate predictions.

Q: How much is the working pressure of ductile iron pipe used in water supply pipe and how is MPa determined?: In general, building materials products are production standards, the production process and specifications are required, pipe work pressure is based on the use of coffins and other factors set standards, pipes with different purposes, the pressure level is different.

Q: Ductile iron pipe connection mode: Jack painted on the outer surface and rubber lubricant: lubricant evenly installed ring inner surface, outer surface coating in the socket to socket socket parts lubricant line all the brush in the socket.

Q: Disadvantages of ductile iron pipes: In most municipal applications, such as water, brine, steam, ductile iron has more corrosion resistance and oxidation resistance than cast steel. Because of the spheroidal graphite microstructure of nodular cast iron, nodular cast iron is superior to cast steel in reducing vibration ability, so it is more beneficial to reduce stress. An important reason for choosing ductile iron is that ductile iron costs less than cast steel.

Q: What are the interface forms of ductile iron pipes? The best drawings are available. Thank you: T interface type sealing ring is a self sealing rubber ring, when the pipe internal pressure increases, the contact pressure between the seal and the pipe increases, T interface can not only allow the deflection angle of the axial displacement, and convenient for installation. When the T type interface is installed, the sealing of the rubber ring can be ensured as long as the socket is simply loaded into the socket and the rubber ring is pressed tightly. This kind of interface has the advantages of reliable sealing, good seismic resistance and corrosion resistance, and it is a better interface.

Q: Advantages and disadvantages of ductile iron pipes?: Nodular cast iron has high strength and strong plasticity. The tensile strength of ductile iron is twice that of gray iron, and the yield strength even exceeds that of cast steel. So, the ball compressive strength of ductile iron pipe is much higher than that of cast iron pipes, buried in the ground, the car is not easy to be crushed.

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