The characteristics of fire protection plastic-coated steel pipe, the difference between galvanized steel pipe and plastic-coated steel pipe

First, the characteristics of fire protection plastic coated steel pipe:
1. Hygienic, non-toxic, no fouling, no growth of microorganisms, and ensure fluid quality.
2. Strong flame retardant ability. Under the combustion test, the coating has no spontaneous combustion and does not fall off.
3. The installation process is mature, convenient, and fast, and a variety of connection methods can be used.
4. Good weather resistance, suitable for long-term static fire water supply, foam, and other harsh environments.
5. The pipe wall is smooth, the conveying efficiency is improved, and the service life is long.
6. Environmental protection, maintaining the water state for a long time can ensure good water quality, and will not cause pollution to the environment due to the passage of time.

Second, the difference between galvanized steel pipe and plastic coated steel pipe:
1. Galvanized steel pipe to make the molten metal react with the iron matrix to produce an alloy layer so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. To remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in the tank of ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride and then sent to the hot dip bath. The advantages of galvanized pipes are uniform coating, strong adhesion, and long service life. Hot-dip galvanizing is because many companies have reduced the thickness of the galvanized layer to make a profit. The original theoretical life is 7-8 years, and now the product quality can only be guaranteed for two or three years.
2. Fire-fighting plastic-coated steel pipe is a combination of steel pipe and plastic. It can be used for pipes of any diameter. The connection method is not limited to galvanized pipe thread connection, groove connection, welding connection, flange connection, double Metal welding connection, etc. The emergence of plastic-coated steel pipe solves the above problems. It has the strength of the steel pipe, and the inner and outer layers of the steel pipe are anti-corrosion to make the inner and outer walls smooth, without reducing the flow diameter and improving the conveying efficiency. Corrosion resistance, strong coating adhesion, good impact resistance, suitable for normal work in harsh natural environments. Long service life, more than five times that of galvanized pipe.