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Galvanized Pipe


Galvanized pipe, also known as galvanized steel pipe, is divided into two types: hot-dip galvanizing and electro-galvanizing. Among them, the hot-dip galvanized galvanized layer is thick, with uniform coating, strong adhesion, long service life, etc..



1 Selection skills of galvanized pipes


Zinc hardly changes in dry air. If a layer of zinc is coated on the surface of the steel pipe, the steel pipe can be prevented from being corroded. We call this type of steel pipe galvanized pipe. Compared with other ordinary steel pipes, the performance of galvanized pipes is relatively excellent.

When purchasing galvanized pipes, you can choose according to the following days:

1. The appearance is smooth, no zinc tumor, burr, silvery white;

2. No hydrogen embrittlement and no temperature hazards, which can ensure that the mechanical properties of the material remain unchanged; 3. It can replace some processes that require hot-dip galvanizing;

4. Good corrosion resistance, neutral salt spray test up to 240 hours.



⒉ Cleaning and maintenance of galvanized pipes


When cleaning galvanized pipes, it is necessary to avoid adding cleaning agents to the water. When cleaning, many people do not understand the truth very well. It is not scientific enough to use strong detergents to remove stains.

There will be a coating on the outside of the galvanized pipe, and the cleaning agent will reduce the friction between the brush and the guardrail, which will affect the cleaning effect. And the chemical substances contained in it will also directly cause the outer layer to fall off, which will directly reduce the service life of the galvanized pipe and reduce the safety effect.


3 Introduction and function of galvanized pipe


Galvanized pipe, also known as galvanized steel pipe, is divided into two types: hot-dip galvanizing and electro-galvanizing. Among them, the hot-dip galvanized galvanized layer has the advantages of uniform coating, strong adhesion and long service life. The cost of electro-galvanizing is low, the surface is not very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipes.

Most of the old houses use galvanized pipes. Now the iron pipes used for gas and heating are also galvanized pipes. Galvanized pipes are used as water pipes. After a few years of use, large rust scale is formed in the pipes, and the outflow of yellow water is not only It pollutes the sanitary ware, china galvanized pipe fittings catalog and is mixed with bacteria that grow on the uneven inner wall. The rust causes the heavy metal content in the water to be too high, which seriously endangers the health of the human body. In the 1960s and 1970s, developed countries in the world began to develop new types of pipes and gradually banned galvanized pipes. Four ministries and commissions including the Ministry of Construction of China have also issued a document stating that galvanized pipes have been banned since 2000. At present, galvanized pipes are rarely used for cold water pipes in newly built communities, and galvanized pipes are used for hot water pipes in some communities.


The galvanized pipe that is often said is now mainly used for conveying gas and heating. Galvanized pipes are used as water pipes. After a few years of use, large rust scale occurs in the pipes. The outflowing yellow water not only pollutes the sanitary ware, but also contains bacteria that breed on the uneven inner wall. In the 1960s and 1970s, developed countries in the world began to develop new types of pipes and gradually banned galvanized pipes. Four ministries and commissions including the Ministry of Construction of China have also issued a document stating that galvanized pipes will be banned from 2000.