One of the modern and promising directions is artificial intelligence and fuzzy logic technologies. For this purpose, the issue of determining the construction angle of the seal node by determining the equivalent stress of the valve seal based on statistical data based on fuzzy logic was considered. With the new approach, the optimal value of the equivalent stress of the improved valve was
... [Show full abstract] determined, and based on this value, the optimal value of the design angle of the seal was determined. This value corresponds to an angle of 620.