The sealing performance of soft seal is easy to ensure, and the requirements for machining accuracy and surface roughness of sealing surface are not very high. Under the pressure of the medium, the ball moves towards the outlet end and presses the valve seat. At this time, the force QMJ of the ball pressing on the valve seat is: the outer diameter of the valve seat sealing surface, the inner diameter of the valve seat sealing surface. In order to ensure the sealing under low pressure, the pre tightening specific pressure of the pneumatic ball valve and the valve seat must not be less than 1200N • M, and the pre tightening sealing mainly depends on the elasticity of the valve seat itself, Therefore, the width of the sealing surface is limited to a certain extent. The calculation formula is: allowable stress (it is clarified that the allowable stress of fluoroethylene is 1530N. For the valve seat with elastic elements, its working reliability and service life largely depend on the correct selection of the pre compression force of the sealing valve seat.
Under low pressure, under the condition of insufficient preload, the sealing of pneumatic ball valve cannot be guaranteed. The excessive compression will increase the friction torque between the ball and the valve seat, and may cause plastic deformation of the valve seat material.

The most prominent performance of temperature regulation in winter and summer shows the power of science and technology, which adds more high-end technical assurance to future development, and is also a sign that the electric ball valve will not be eliminated by the development of the times. Even in hot summer, there will be a good temperature control system as protection, and there is no need to worry about the friction heat reflection caused by high temperature equipment, In addition to the fully automatic regulation system, the automatic operation of industrial equipment is realized, which is a necessary guarantee for the development of the industrial production equipment market, and is also one of the products with unlimited potential.