DUCTILE IRON PIPE AND PIPE FITTINGS K7 CLASS DN200

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
23 m.t.
Supply Capability:
3000 m.t./month

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Product  Discription:

OKorder is offering high quality K7 CLASS DN200 Ductile Iron Pipe and Pipe Fittings at great prices with worldwide shipping. Our Pipe and Pipe Fittings are available in a wide range of styles and materials, and are guaranteed with a full warranty. Our supplier is a world-class manufacturer of Ductile Iron, and our products are utilized the world over, with OKorder annually supplying a full range of products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee a competitive price.

 

Product Applications:

Our K7 CLASS DN200 Ductile Iron Pipe and Pipe Fittings are incredibly reliable and ideal for potable water transmission and distribution as well as utility projects (water and sewer).

 

Product Advantages:

OKorder's K7 CLASS DN200 Ductile Iron Pipe and Pipe Fittings are of the highest quality and we offer external coatings and internal linings as well as accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc. We include a copy of the original inspection reports upon shipment, photos of the loading process sent to the customer, and delivery progress weekly updates

 

Main Product Features:

·         Strict inspections according to related standards

·         Easy installation and service-free

·         Extended service lifespan

 

Product Specifications:

Material: Ductile Cast Iron

Sizes: DN 80mm – DN 2000mm

Effective Length: 6m – 5.7m

Standards: ISO 2531:1998 / EN 545:2006 / EN 598:2007

Annual Capacity: 200,000 tons

Coating: Zinc 130g/m² (ISO 8179-1); 70 micron bitumen coating

Cement: Portland Cement / High Alumina Cement / Sulphate Resisting Cement Lining (ISO 4179)

 

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered by OKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

Q3: What is the difference between Cast Iron and Ductile Iron?

A3: Cast iron is a generic name for any high carbon molten iron poured as a casting. When used to refer to pipe, cast iron (sometimes called gray iron) is a specific type in which the free graphite (Carbon) is in the shape of flakes. Ductile Iron is a specific type of cast iron in which the free graphite is in the shape of nodules or spheroids. Although nearly identical chemically, the two irons are quite different metallurgically. The current standard for Ductile Iron Pipe (ANSI / AWWA A21.51 / C151) requires a minimum grade of 60-42-10 (60,000psi Ultimate Tensile Strength, 42,000psi Yield Strength, and 10% Elongation). Although Cast Iron was the best engineering material available for pipe production for nearly five hundred years, the development of Ductile Iron Pipe provides a far superior product.

Q4: How much thermal expansion should I allow for?

A4: The linear expansion of ductile iron pipe as a result of thermal effects is very small, with ductile iron expanding less than concrete. For rubber gasketed joints and mechanical joints assembled in accordance with the manufacturer’s instructions, there is enough clearance from the face of the plain end of the pipe to the back of the bell to account for significant thermal growth before beginning to make metal-to-metal contact. Except for very long runs of exposed piping, particularly if flow is intermittent, thermal expansion is usually not a concern.

Q5: What is the maximum velocity recommended for cement-lined Ductile Iron pipe?

A5: Although there are differing opinions on this subject, a conservative maximum velocity for design purposes is 7 fps (feet per second). Ductile Iron pipe may be rated as high as 350 psi service. A pipeline operating at 7 fps velocity could account for a 350 psi pressure surge (7fps X 50 psi/fps). Adding a potential surge pressure equal to the pressure rating of the pipe encroaches significantly on the safety factor. Exceeding 7 fps velocity could produce potentially damaging surge pressure.

Q6: Can cement-mortar linings be repaired in the field?

A6: Repair is achieved by first cutting out the defective or damaged lining to the metal so that the edges of the lining not removed are reasonably perpendicular to the pipe wall or slightly undercut. A stiff mortar is then prepared and applied to the cutout area and troweled smooth with adjoining lining. To provide for proper curing of patches by preventing too rapid of a moisture loss from the mortar, the patched area is normally seal-coated immediately after any surface water evaporates, or alternatively the area is kept moist (e.g. with wet rags or burlap over the area or with the ends of the pipe or fitting taped over with plastic film, etc.). Of course, in potable water-related applications, no patch or curing components should be used in the repair that would negatively affect health or water quality.

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Q:What are the differences between ductile cast iron pipes and centrifugal ductile iron pipes?
Centrifugal casting is a casting method. Ball milling cast iron pipe is a kind of material.
Q:How can the cast iron pipe be connected?
Depends on what type of, A type with flange connection, W type stainless steel band clamp connection
Q:How much water seepage is allowed in the water pressure test for water hose DN300?
Test method: metal composite pipe and water pipe system 10min observed in the test pressure, the pressure drop should be no more than 0.02MPa, and then reduced to working pressure check should be no leakage of plastic pipe; water supply system should be in the test pressure regulator 1H, pressure drop shall not exceed 0.05MPa, then stabilized at 1.15 times the working pressure of the state under 2h, the pressure drop shall not exceed 0.03MPa, and check each connection must not leak.
Q:How much is the installation cost of the ductile iron tube?
From the hydraulic performance, because ductile pipe specifications generally refers to the inner diameter of PE pipe diameter specifications generally refers to the same specifications, because under the condition of ductile pipe can achieve greater runoff; from the installation and maintenance cost, ductile pipe have more favorable price. The inner wall of zinc spray, anti-corrosion materials such as cement mortar.
Q:Does centrifugal cast iron pipe work well with lining cement? Will it scale and breed bacteria?
The situation in use abroad seems. It is considered that the corrosion of the inner wall of the centrifugal centrifugal ductile iron pipe and the rupture of the pipe are easy to occur when the content of chloride ion exceeds 5O0PPm in the pipe laying environment. This is mainly because, because the cement paste protection layer is the late spraying construction, it is not good to combine with the prefabricated core tube. It often causes water or moisture to seep in and causes oxidation and corrosion of the prestressing steel bars, resulting in fracture. The adhesive interface between cement mortar and centrifugally cast iron pipe is not reasonable. Because of the water absorption of cement, when the water enters the pipe, it is easy to destroy the interface and corroded the inner wall of the centrifugally cast iron pipe. Because it is a brittle material, it is easy to cause sudden accidents.
Q:How can the three pipes of ductile iron leak?
When the pipe connection of the three water leakage, first of all to see whether it is to do the pipe three links of the manufacturers, pressure did not reach, if it is. It is only the replacement, if not, with cast iron electrode welding, or socket connection half!
Q:The difference between ductile iron pipe and steel pipe used in pipe jacking
Comparison between ductile iron pipe and universal cast iron pipe: the process of making ductile iron pipe is cast by adding alkaline earth metal or rare metal such as magnesium and calcium in the raw material of common cast iron pipe.
Q:There are several forms of flexible interfaces for Spigot Cast Iron Pipes
Socket type cast iron pipe rigid interface antiallergic can, under the action of external force, no tower water supply equipment interface packing easy fragmentation and leakage, especially in the weak foundation and uneven subsidence area and the earthquake zone. The interface damage rate is higher. Therefore, flexible interfaces should be adopted under the above unfavorable conditions.
Q:What is the relationship between continuous cast iron pipe and ductile iron pipe?
Continuous cast iron pipes are usually grey cast iron pipes. Its tensile strength and elongation are much lower than those of nodular cast iron. In chemical composition, grey cast iron has less carbon content than nodular cast iron. According to the organization, the graphite form of gray iron is flaky, and the graphite form in spheroidal graphite cast iron is spherical.
Q:A tube is used only in ductile iron pipes, isn't it?
Compared with the PE pipe, from the installation time, ductile pipe PE pipe installation is simple and rapid, and after the installation of internal and external pressure bearing better tightness and corrosion resistance; from the point of view, ductile pipe sealing better after installation, but also can improve the corrosion resistance of corrosion protection through a variety of means; from the hydraulic performance, because ductile pipe specifications generally refers to the inner diameter of PE pipe diameter specifications generally refers to the same specifications, because under the condition of ductile pipe can achieve greater runoff; from the installation and maintenance cost, ductile pipe have more favorable price. The main components of ductile iron pipes are carbon, silicon, manganese, sulfur, phosphorus and magnesium. The inner wall of zinc spray, anti-corrosion materials such as cement mortar.

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