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What should be paid attention to when choosing a high-quality electric butterfly valve
With the rapid development of industrial automation in China, an industrial automation control original is more and more people's loyal, it is the electric butterfly valve. Electric butterfly valve has a wide range of applications, including environmental protection, light industry, metallurgy, pharmaceutical and other industries can use electric butterfly valve, especially in shipbuilding and metallurgical industry, electric butterfly valve is even more well-known. So, what should we pay attention to when choosing a high-quality electric butterfly valve? Let's take a look at it together. First, choose a regular manufacturer Because the electric butterfly valve is widely used and plays an extremely important role in many industries, when selecting an electric butterfly valve, it is necessary to select an electric butterfly valve produced by a regular manufacturer, especially some of the more well-known manufacturers in China, and the electric power produced by them. The types and specifications of butterfly valves are also relatively abundant, and the quality can also be guaranteed. Moreover, after-sales service is also an important condition for ensuring the effective use and maintenance of electric butterfly valves, which cannot be ignored. Second, pay attention to the number of rotations of the output shaft of the electric butterfly valve According to practical applications, the number of rotations of the output shaft of the electric butterfly valve plays an important role in the operation, so the number of turns depends on the valve stem pitch, the number of thread heads, and the nominal diameter of the valve, usually for the electric device. The total number of rotations is equal to the ratio of the valve opening height to the stem pitch plus the number of threads. Third, matching stem diameter For the electric butterfly valve, the inner diameter of the output shaft of the hollow shaft of the electric device should be matched with the outer diameter of the stem of the stem valve. For the mutual composition of some valves and the stem valve, sometimes it is not necessary to consider the diameter of the stem. The problem, but in the selection of the diameter of the stem of the electric butterfly valve, the matching of the diameter of the keyway and the stem should also be taken into consideration in order to operate and work normally. Fourth, pay attention to the operating torque of the electric butterfly valve Under normal circumstances, one of the most important parameters for selecting a high-quality electric butterfly valve is the operating torque. The valve output torque of the electric butterfly valve should be about 1.5 times the maximum number of valve operating moments. Fifth, the operating thrust of the electric butterfly valve According to actual needs, the operating thrust of the electric butterfly valve can be selected to maximize the operation of the valve.