The slag lock valve has the following technical features in addition to the structural features of preventing misoperation, preventing the valve rod from flying out, and setting the driving device installation platform. The ball and valve seat of the slag lock valve are completely metal to metal sealing. In order to ensure the reliable sealing of the valve under various temperatures and pressures, according to the different operating conditions and requirements of users, a variety of advanced hardening technologies for the ball and valve seat can be adopted, including supersonic spraying, nickel base alloy spraying welding, special surface hardening, cemented carbide spraying welding and high strength and high hardness ceramic materials, The surface hardness of the ball and valve seat can generally reach more than hrc75, and the highest can reach more than hrc90. Tungsten carbide wear-resistant alloy is used for the inlet and outlet. The sealing surface material not only has the properties of temperature resistance, friction resistance and impact resistance. The slag lock valve can be applied to most severe working conditions. Especially in coal chemical industry, polysilicon, petroleum, building materials, metallurgy, power, mining and other industries.

Four advantages

1. Double blocking and purging function;

2. Excellent sealing performance;

3. Anti blocking technical scheme;

4. Natural anti-static structure.