The difference between ductile iron pipes and ordinary pipes

The production process of ductile iron pipes is cast by adding magnesium, calcium and other alkaline earth metals or rare metals to the raw materials of ordinary cast iron pipes. Ductile iron pipe and ordinary cast iron pipe, there is a big difference, ductile iron pipe manufacturer Guangxi Zezhuang Pipe Co., Ltd. summarizes the following points for you, I hope it will be helpful to you.

Ductile iron pipe not only maintains the corrosion resistance of ordinary cast iron pipe, but also has the advantages of high strength, good toughness, thin wall, light weight, impact resistance, large bending performance, and easy installation. Therefore, ductile iron pipes are not only widely used abroad, but also have been well promoted and used in China, in many areas of our country, ductile iron pipes have been widely used in medium and small diameter water supply pipes;

Performance comparison between ductile iron pipe and steel pipe:

Steel pipes can be divided into seamed steel pipes and seamless steel pipes, and seamed pipes are generally used in the middle channel of water supply pipes. Compared with ductile iron pipes, steel pipes have the advantages of good toughness, high tensile strength, thin pipe walls, high pressure resistance, long pipes, and fewer interfaces, but their disadvantages are poor corrosion resistance and high price. Therefore, under normal circumstances, except for small diameter pipes and special works (e.g. pipe jacking works;

Performance comparison between ductile iron pipe and prestressed reinforced concrete pipe:

Ductile iron pipes and prestressed reinforced concrete pipes (suitable for large-diameter pipes, the diameter has exceeded 2000), with the following characteristics:

(1) Energy saving, the main materials are sand and stone.

(2) The weight is large, the texture is brittle, the cutting is difficult, and the construction is relatively difficult.

(3) The working pressure is 2o% to 40% lower than that of ductile tube, which is 0.15-0.25MPa.

(4) The deflection angle is 1.5 degrees, while the ductile iron pipe can reach 3.0 degrees, so the terrain adaptability of prestressed reinforced concrete pipe is poor.

Performance comparison between ductile iron pipe and PVC plastic pipe:

Compared with ductile iron pipes, PVC pipes are characterized by smooth inner walls, light weight, corrosion resistance, good anti-scaling performance, low price, etc., but there are also many disadvantages, mainly as follows:

(1) It is easy to age, heat expansion and cold contraction, and should not be exposed to sunlight for a long time, and the storage room temperature should not be greater than 40 °C.

(2) Low strength, poor compressive performance, and improper construction can easily cause deformation.

(3) Poor rigidity, poor flexibility, easy to cause mouth leakage.