There are various types and complete specifications of vacuum valves in our country. In summary, it can be divided into eight major categories, which are:
Ultra high vacuum plug valve series, high vacuum baffle valve series, high vacuum butterfly valve series, high vacuum ball valve series, high vacuum diaphragm valve series, vacuum electromagnetic belt inflation valve series, electromagnetic pressure differential inflation valve series, vacuum micro adjustment valve series, etc.
It has been widely used in fields such as electronics, semiconductors, integrated circuits, vacuum measurement, leak detection, ion beams, electron beams, lasers, controllable thermonuclear reactions, and aerospace.
What issues should be taken seriously in the future development of vacuum valves?
1. Attention should be paid to the replacement of vacuum valves. If early vacuum valves are found to have complex structures, inconvenient operation, and inconvenience to the operation of vacuum devices, it is hoped that they can be replaced with vacuum valves of the same specifications. Early manual vacuum valves could be replaced with electric or pneumatic vacuum valves to achieve automated operation of the vacuum system.
2. Energy conservation requires strengthening the research and development of energy-saving valves. Develop a new energy-saving vacuum valve using a combination of new sealing materials and electromagnetic driving principles.
3. Research and development of large-scale manual, pneumatic, and electric ultra-high vacuum plug valves. Currently, there are several types of valves produced in China, including CC type (manual), CCQ type (pneumatic), CCD type (electric), etc. However, ultra-high vacuum plug valves with a diameter of DN500 or above are the weak link. Electric valves are important components for achieving automatic control of vacuum systems. The current limit switch structure of the electric motor mechanism should be improved using optoelectronic technology to ensure the reliability of valve opening and closing.
4. We need to strengthen the research and development of ultra-high vacuum valves. Starting from the transmission principle, sealing materials, structural form, etc. of the valve, we should draw on the advantages of similar ultra-high vacuum valves from abroad and develop new products. There are not many domestic products such as ultra-high vacuum fine adjustment valves, which cannot meet the needs of regulating the airflow of ultra-high vacuum devices. Therefore, it is necessary to improve the processing technology and extend the service life of such valves.
5. Standardization and generalization should strengthen the standardization and generalization of vacuum valves. On the basis of absorbing advanced technology from similar foreign valves, we need to improve valve design so that all types of vacuum valves in China can reach the advanced level of similar foreign valves in terms of performance, structure, and appearance. In addition to meeting the needs of vacuum equipment in our country, we strive to introduce our vacuum valves into the international market.
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