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Brand: |
Jintai-DI pipe |
Product name： |
Ductile iron push on pipe |
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Nominal diameter： |
DN600-DN2600 |
Production process： |
Centrifugal casting |
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Material： |
Ductile Iron |
Effective length： |
3m,6m |
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Grade： |
1,Wall thickness graded pipe K grade: ≥K8 |
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Grade： |
2,Pressure classification pipe C grade: including C25, C30, C40 |
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Standards： |
ISO 2531 ,BS EN545 BS EN598 |
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Internal anti-corrosion coating： |
Cement mortar lining |
External anti-corrosion coating： |
Steel mesh plus concrete layer |
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Interface type： |
Slide-in flexible interface (Push-In Joint) |
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Application： |
Municipal water supply, drainage, sewage treatment, industrial drainage, chemical industry, water transportation engineering and other fields |
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Ductile iron push on pipe, also known as push pipe, (ductile iron jacking pipe) has the following characteristics:
Ductile iron jacking pipe is a type of ductile iron pipe that can be laid without digging trenches and can be pushed in by overcoming the friction of the soil through pushing force. When in use, a pipe body is often pushed into the soil and then pushed in again. The second pipe body is connected to the first pipe body, and multiple pipe bodies are pushed in sequentially to complete the ejection operation. The multiple pipe bodies are butted end to end to form a pipe jacking operation
1,Interface type and wall thickness grade; wall thickness grade of jacking pipe ≥ K 8 or corresponding pressure grade;
2,T-shaped ductile iron jacking pipe structure:
3. The main stress-bearing surfaces are: socket surface and flange end surface.
4. Interface form: Use slide-in interface connection.
5. Mainly divided into T-type interface and K2T-type interface.
The pipe diameter of T-type interface is: DN600~DN2600
The pipe diameter of K2T type interface is: DN1600~DN2600
6. The interface seal adopts special rubber sealing ring. Through such optimized design, the sealing performance and corrosion resistance of the pipeline are strongly guaranteed.
7. In addition to pipes, pipeline installation also includes pipe fittings, rubber rings, bolts, nuts and other accessories.
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Ductile iron jacking pipe has gradually become the mainstream pipe material in the construction process of ductile iron jacking pipe, mainly because it has the following significant advantages:
1. Excellent anti-corrosion performance: The ductile iron material itself has good corrosion resistance. Its outer wall is sprayed with a zinc layer (130g/m2) and is wrapped by 6\~10 cm thick reinforced concrete. An epoxy resin coating is also applied to the outer wall of the concrete jacket, which not only further enhances corrosion resistance, but also reduces the friction between the pipe and the soil. This super anti-corrosion ability ensures that the service life of ductile iron push on pipe can be as long as 70-100 years.
2. Withstand large thrust force: By setting up thrust flanges, reinforcing ribs and encapsulating reinforced concrete, the allowable thrust force of the pipeline is increased. For example, the allowable pushing force of a K9 grade DN1200 ductile iron push on pipe can reach 739 tons. Moreover, products with higher allowable thrust force can be manufactured by increasing the wall thickness of the tube without a large increase in cost.
3. Adapt to curved pipe jacking construction: The interface of ductile iron push on pipe allows a deflection angle of ≥1.5°, which makes it widely used in curved pipe jacking construction.
4. Provide pipes with grouting holes and corresponding grouting hole sealing measures to meet specific needs during construction.
5. Lower frictional resistance: The frictional force with the soil is smaller, which is conducive to jacking the pipe underground section by section.
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Packing:
Pipe diameters below 300mm are bundled with steel strips, and pipes above 300mm are packed in bulk.
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