Applications of Double Eccentric Hemispherical Ball Valves

With the continuous development of industry, the demand for ball valves under severe working conditions such as high temperatures and high pressure is increasing. Under these severe working conditions, ball valves need to have better wear resistance, erosion resistance, high-temperature resistance and corrosion resistance. However, the service life, cost and performance of traditional ball valves still cannot meet the harsh working conditions of industrial silicon, coal chemical industry, gas and so on.
 
A double eccentric hemispherical ball valve is a new valve developed by taking advantages of ball valves with different structures. It adopts double eccentric sealing structure, and has the advantages of small wear, small torque, good sealing performance and long service life. The valve seat and hemisphere are treated by special hardening processes to meet the requirements of wear resistance, erosion resistance, corrosion resistance and high-temperature resistance under severe working conditions.



Applications of double eccentric hemispherical ball valves

• A double eccentric hemispherical ball valve is applicable to all kinds of general industries, such as water, sewage, waste water, steam, gas, pulp and other media.
• If the sealing pair is Cr-Mn-Si cemented carbide and has features of fire resistance, explosion proof and anti-static functions, it is suitable for gas, coke oven gas, water gas, natural gas and other occasions.
• If the sealing pair and the flow passage of the valve body are treated by the special process of tungsten carbide, it has the advantages of high efficiency and energy saving, good wear resistance, reliable sealing performance, easy operation, rapid opening and closing, long service life and so on. It is an ideal choice for pipes in the industrial silicon industry.
• Because of the characteristics of instantaneous separation and instantaneous compression between the hemispherical body and the valve seat, a double eccentric hemispherical ball valve is suitable for the harsh working conditions containing particles, and can be widely used in metallurgy, mineral processing, electric power and other production processes.