How to identify inferior ductile iron pipes

Centrifugal ductile iron pipe is widely used and develops rapidly

The main purpose of ductile iron pipes is to help our lives become more convenient. In the country, ductile iron pipes are manufactured in order for our people to live more effectively in the daily lives of society and to develop more rapidly in our careers. It can make our lives more and more advanced and make our development faster and faster. When we build houses, especially when we build factories, we must have a stable job and have good fixation tools to stabilize the buildings of our factories. However, ductile iron pipes are a good helper. They can It plays a very good stabilizing role and makes our factory buildings more stable. It also allows our workers to enter the factory with confidence and do not have to worry about any sudden events, such as fires or explosions. Even if something like this happens, ductile iron pipes can be very stable and support the factory well.

2024-03-25

Introduction to Ductile Iron Pipe

Ductile iron pipe fittings are one of the accessories of ductile iron pipes. It includes elbows, tees, reducers and sockets, etc. Material: gray iron, ductile iron Specifications: DN15-DN300 (mm) Use: used in water supply, drainage and gas transportation pipeline systems, can withstand pressure water supply pressure 0.02MPa-0.6MPa. Working temperature: -45°C ~ 150°C Applicable media; water and oil characteristics:

2024-03-25

How to identify inferior ductile iron pipes

1. Ductile iron pipes are prone to folding. Folds are various fold lines formed on the surface of ductile iron pipes. This defect often runs throughout the longitudinal direction of the product.<br> 2. Inferior ductile iron pipes often have pitted surfaces on the surface. The pitted surface is an irregular uneven defect on the surface of the ductile iron pipe caused by severe wear of the rolling groove. As manufacturers of low-quality ductile iron pipes pursue profits, groove rolling often exceeds the standard.<br> 3. The surface of inferior ductile iron pipes is prone to scarring.<br> 4. The surface of inferior materials is prone to cracks because its raw material is adobe, which has many pores. The adobe is subject to thermal stress during the cooling process, causing cracks, and cracks appear after rolling.<br> 5. Inferior quality ductile iron pipes are easily scratched. The reason is that the equipment of inferior material manufacturers is simple and easy to produce burrs, which can scratch the surface of ductile iron pipes. Deep scratching reduces the strength of ductile iron pipe.<br> 6. Inferior ductile iron pipes have no metallic luster and are light red or similar in color to pig iron. If you don’t know how to choose when purchasing, use these six points and you will definitely not buy inferior ductile graphite tubes.

2024-03-25

Water supply pipes and connection methods

Gray cast iron can withstand common water pressure (generally ≤0.75Mpa), can meet common needs in terms of strength (tensile limit ≤1.4Mpa, bending limit 2.4-3.4Mpa), is easy to install, and is cheap. Cast iron pipes are also corrosion-resistant and can be used for hundreds of years without damage by simply coating the surface with a layer of asphalt. It is easier to process and cut, and it is also more convenient to drill holes and turn threads. The disadvantage is that it is heavy. According to different working pressures, they are divided into different pressure levels.

2024-03-25

Anti-corrosion treatment methods for ductile iron pipes

Asphalt paint coating is used for pipelines transporting gas. Preheating the pipe before painting can improve the adhesion of the asphalt paint and speed up drying.

2024-03-25

What is the European standard implementation standard for thin-walled stainless steel water pipes?

At present, thin-walled stainless steel water pipes basically use 304 or 316 materials, and kettles and cups on the market also use this material, which indicates that stainless steel materials are increasingly recognized as water pipes. Stainless steel water pipes, no matter how many years you use them, are bright and will not have sediment. Now many water pipes are placed outdoors, and they will be frozen and damaged in winter, but stainless steel water pipes will not have these problems, and they have good frost resistance. In addition, stainless steel water pipes can be managed to the end, there are no joints in the middle of the water pipes, and have good corrosion resistance.

2024-03-25