The role of regulating valve in process control is well known. In many control processes, it is required that the regulating valve be in a certain position when it fails to protect the process from accidents, which requires that the regulating valve be designed to achieve fault three break protection measures. For the electric control valve, it is relatively simple. When the signal is cut off, it can stay at any position of fully open, fully closed or held according to the setting of the control module. When the power is cut off, it will naturally stay at the fault position, or the electric actuator with reset device can also run the valve to fully open or fully close.

Although the pneumatic ball valve industry has a good prospect, it still needs our continuous efforts. At this time, it is better to continue scientific research, so that we can really take advantage of this aspect. This is not only to promote the development of the company, but also to promote the better progress of the entire industry. It is really clear about the prospect, the future of the industry, and the perspective of development. These aspects can not be underestimated to promote the whole industry. Only when everyone in the industry is constantly working hard, constantly uniting and competing, can we finally better promote the progress of the industry.