What are the Main Points of Using Ductile Iron Pipe?

Ductile Iron Pipe is mainly called centrifugal ductile iron pipe, it has the essence of iron, steel performance, excellent corrosion resistance, good ductility, good sealing effect, easy installation, mainly used for municipal, industrial and mining enterprises water supply, gas transmission oil etc. It is the first choice for water supply pipes, with a high cost performance. Compared with PE pipes, in terms of installation time, the installation of spherical ink tubes is simpler and faster than that of PE tubes, and the internal and external pressures are better after installation; from the perspective of hermeticity and anticorrosion, the tightness of the spherical ink tubes after installation is also better. Various anti-corrosion methods can be used to improve the anti-corrosion performance; from the perspective of hydraulic performance, because the specifications of the spherical ink tube generally refer to the inner diameter, the specifications of the PE tube generally refer to the outer diameter, because under the same specifications, the spherical ink tube can achieve a greater radial flow; In terms of overall installation and maintenance cost, the ductile tube has a more superior cost performance. Spray zinc on the inner wall, anti-corrosion materials such as cement mortar, etc.

Ductile Iron Pipe

Advantage

In the medium and low pressure pipe network, the ductile iron pipe has safe and reliable operation, low breakage rate, convenient and fast construction and maintenance, and excellent corrosion resistance. The newly developed "Rock Shield" series of pipelines can be applied to trenchless construction, and are widely used in the construction of pipelines crossing rivers, crossing roads, and crossing buildings.

Disadvantages

Generally not used in high-pressure pipe network. Due to the relatively bulky body, machinery must be used for installation. After water leakage occurs after the pressure test, all pipes must be dug out, the pipes must be lifted to a height that can be put in the clamp, and the clamp should be installed to prevent water leakage.

As a Ductile Pipe Suppliers, share with you the main points of use:

1. Trench excavation

The bottom width of the groove should be calculated as follows: B=D1+2(b1+b2)

Where: B—the width of the trench at the bottom of the trench (mm) D1—the width of the outer edge of the pipe structure (mm) b1—the width of the working surface on the side of the pipe (mm) b2—the width of the support on the side of the pipe (mm)

2. Groove support

The design is based on factors such as trench soil quality, groundwater, slotted cross-section, and load conditions. It is required to be firm and reliable, prevent collapse, and support not to interfere with down pipes and stable pipes.

3. T-shaped interface pipes shall be provided with piers at the turning points in the vertical or horizontal direction. The size of the pier should be determined through calculation based on factors such as pipe diameter, rotation angle, working pressure and other factors.

4. When transporting domestic drinking water, the pipeline should not pass through the poisonous area, and protective measures should be taken if it must pass through.

5. The outer anti-corrosion coating of the ductile iron pipe should be galvanized and epoxy asphalt coating or higher requirement coating according to the soil condition of the pipe laying site.

6. After the pipeline is installed and the pressure test is qualified, it should be washed with low chloride ion water and disinfected with 0.03% potassium permanganate aqueous solution.

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