2. The green light of the transponder indicates that the valve has been opened, and the red light indicates that the valve has been closed. 　　　　

Therefore, the selection of this electric on-off butterfly valve should also be strictly understood about the quality of this product, especially some key components, which should be mastered and understood in more detail to ensure that people can improve more help after use, and can also improve the service life after long-term use, Therefore, the use of these products should pay attention to these characteristics, which can help people get more practical help. The problems of this product will not cause more problems in the use of the entire product equipment, and ensure that the quality of the purchased product has been improved more. How to properly install the relevant pneumatic switch ball valve? What should be paid attention to when using the pneumatic butterfly valve? What should be paid attention to when installing and putting into operation the pneumatic control valve? Understand the important position of the electric butterfly valve. Identify the leakage of the electric butterfly valve according to the five characteristics. Five methods can help you solve the problem