The explosion-proof ball valve adopts a fixed ball design, and the relative moving parts are made of self-lubricating materials with a very small friction coefficient, so the operating torque is small. In addition, the long-term sealing of the sealing grease makes the operation more flexible. The valve adopts a high platform structure, which can make the installation of electric/pneumatic actuators more specialized. Explosion-proof ball valve adopts full-bore or reduced-bore design with low flow resistance. Metal hard-sealed explosion-proof ball valve adopts two-way metal movable sealing structure, with automatic compensation and self-cleaning functions, and excellent sealing performance. It has a fire-proof and anti-static structure, and a conductive spring is arranged between the valve stem and the valve body and between the valve stem and the ball to avoid electrostatic ignition to ignite flammable media. Make sure the system is secure. The refractory structure has double protection. In case of fire and the sealing ring is burnt out, each sealing part of the ball valve can form a metal-to-metal hard sealing structure. Dynamic pressure relief structure, when the liquid medium remaining in the valve cavity is vaporized due to the increase of temperature, so that the pressure in the middle cavity increases abnormally, the medium cavity can automatically release the pressure by pushing the valve seat by its own thrust, thus ensuring the valve Safety.
