What requirements should be paid attention to when painting Dongfeng limit electric ball valve. The limit electric ball valve is also called the pipe expansion joint. After the production of the product is completed, a layer of paint should be sprayed on the surface of the product. The paint is a method to look beautiful and protect the pipeline from erosion after production. The paint protection effect largely determines the type of paint and construction method used. The paint of limit electric ball valve shall match the service environment. The appropriate paint shall be selected according to the installation environmental conditions of the steel electric ball valve, the type, concentration and temperature of the corrosive medium.
If the steel electric ball valve is exposed to the sun, rain, wind and frost, alkyd varnish should be used; Phenolic varnish should be selected when contacting with acidic medium; When contacting alkaline medium, epoxy resin paint should be selected. The nature of the paint shall be compatible with the material of the steel electric ball valve, otherwise the paint surface will fall off and crack. The economic and technical comparison shall be carried out when selecting the paint for steel electric ball valve, and the paint with low cost, convenient construction and long service life shall be selected. Finally, appropriate painting process shall be selected.
The painting and spray painting process shall be selected according to the paint variety and performance to ensure the construction quality and improve the paint effect.