Combined with the connotation of valve leakage in petrochemical equipment, relevant personnel can infer the specific cause of valve leakage according to the specific location of valve leakage in the detection work.

First, the cause of valve leakage occurs in the valve body. The main cause of valve leakage is that the quality of valve body does not meet the relevant standards. From the practical application, valve body is a kind of part formed by human processing and casting. For example, the uneven texture of the valve body and the existence of gap will cause leakage due to valve damage. To solve the problem of valve body leakage, it is necessary to strengthen the inspection of product quality in the process of valve body casting. Second, valve leakage due to defective body. In order to give full play to the role of valves in petrochemical production and processing needs to ensure the flexibility of the valve stem, if the quality of the valve stem in the specific operation, then it is easy to have valve leakage. Therefore, it is necessary to strengthen the strict inspection of valve stem quality to ensure the scientific and effective sealing packing construction. Third, valve leakage due to poor sealing of stem joint. In the process of valve body and bonnet sealing operation, it is easy to have some quality and safety risks, leading to valve leakage. Therefore, in the construction needs to strengthen the valve stem joint sealing inspection.

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