3 Scope of application Double eccentric semi pneumatic ball valve is suitable for valves required by various general industries, such as water, sewage, waste water, steam, gas, pulp and other media. If the sealing pair is made of Cr Mn Si hard alloy and has fire resistance, explosion-proof and anti-static functions, it is suitable for medium and high temperature media requirements, such as gas, coke oven gas, water gas and natural gas. If the sealing pair (hemispherical body, valve seat) and valve body passage are treated by tungsten carbide special process, it has the advantages of high efficiency, energy saving, good wear resistance, reliable sealing performance, easy operation, rapid opening and closing, and long service life. It is an ideal choice for valves used in industrial silicon industry pipelines. Because of its instantaneous separation and compaction characteristics between the hemispherical body and the valve seat, it is suitable for the harsh working conditions with particles in the medium, and can be widely used in various pipeline control in the blast furnace pulverized coal injection, pulverizing system and dust removal system in metallurgy, mineral processing, power and other production processes. In the process of instant separation and instant compression, the hemispherical body and the valve seat can squeeze and cut to remove the scale and adhesion on the sealing surface, which can ensure tight and reliable sealing. It is the ideal choice of valves for two-phase mixed fluid medium in the process flow of transporting solution slurry, slurry ash and slag that are easy to precipitate and scale, and crystallize.

So when users choose electric butterfly valve, the first thing is to pay attention to it, what kind of performance advantage it uses, so only in this way can users achieve the maximum advantage in the product when using it, so this is naturally the biggest requirement of users when using it, It is very important to choose a good manufacturer, especially the brand, so that it can achieve the maximum cost performance when using the product.