Pneumatic ball valve's structure function

use pneumatic ball valve, we need to understand the role of each structure:, blocking and excretion: when valve is closed, the upper side and the downstream side of the seat will block the liquid, and at this point, the dirt can by discharging device inside the body lumen for excretion. , the structure of the automatic pressure release: if the body lumen pressure occurred the phenomenon of abnormal rise, the body within the lumen of the medium can be automatically according to the thrust to push the seat of pressure relief, to ensure the safety of the valve lift valve. Reliable seal, valve stem, the stem is used pour sealing bottoms type structure, the structure of the sealing force can be increased as the medium pressure increases, can effectively guarantee the valve stem seal. , fire prevention structure: according to the condition or the needs of users, pneumatic ball valve can be designed to fire prevention structure. , anti-static structure: in the operation of the valve, friction between the sphere and valve seat can produce electrostatic charge, and will accumulate in the sphere, and in order to prevent the generation of static electricity spark, you need to set up an electrostatic device on the valve, and accumulate in the sphere of charge is derived.