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