With the rapid development of science and technology, chemical production is also moving towards the direction of automation and intelligence. As the key structure of chemical system, valve plays an important role in the whole system. The products produced by chemical enterprises as ZJCLV full port ball valves, are highly prone to accidents due to their inflammable, explosive and corrosive properties. In the past, most production processes used by chemical enterprises were closed processes to prevent chemical accidents. But only enhanced valve selection can solve such problems at a high level. In this process, due to the variety of valves, different valves are different in function, and the valve as an important component of the chemical system, the quality and function of the valve will have a significant impact on the operation of the chemical system.

In order to ensure the stable operation of chemical system, it is necessary to master the selection skills of common valves（gate valve, ball valve, globe valve etc.）and select appropriate valves on this basis.