Is the pneumatic rubber lined butterfly valve d971x-10yx normally open and closed? The electric on-off butterfly valve is mainly composed of several important parts, including the electric actuator and the butterfly valve body, so that people can have a good understanding of these important components of the product, and then have a detailed understanding of these key systems during daily maintenance, It ensures that if there is a fault, we can better understand which system is causing the problem. In addition, we should have a good understanding of the use environment of this equipment during use, so that we can ensure that no more problems will occur during the use of the entire equipment, As a result, the whole transmission valve has more problems due to the harsh environment, so people should master and understand the different characteristics of this equipment to better help people get more practical help in the use process, and ensure that the entire equipment will not be damaged due to external problems, Therefore, people should understand and master the equipment in detail, so that people can get more practical help from it. During the use process, people should understand these characteristics of the equipment, so as to better ensure the good use and effect of the whole equipment.
、 Another reason is the valve itself, which may be due to the internal wear and tear that reduces the air tightness. The sectional area of this place is the smallest, and the fracture of the pneumatic butterfly valve stem usually occurs at the root of the upper and lower threads. It is also very easy to produce stress concentration or exceeding the standard. Especially when the working conditions deviate greatly from the design parameters. For example, after the DN150 electric gate valve was opened many times in a power plant, the tool retraction of the stem ladder thread was broken. However, after investigation, it was found that the pre tightening nut of the valve cover was loose, and the valve cover moved upward, causing the stem nut to be stuck, which was very obvious - the electric installation stroke debugging had been over positioned, resulting in an accident caused by too large maintenance torque.
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