Valve ball parts because of space and structure constraints, individual parameters can only make a small range of changes, but the main purpose of the design is to reduce costs and get better performance. If we optimize the design of each parameter, then it will inevitably consume a lot of manpower and material resources.

If you can quantitatively show the performance of different parameters on the valve ball, you can come to important design parameters, thereby enhancing the design efficiency.

Through the study found that the sensitivity analysis is to study the specific parameters of the valve ball performance. In order to make the sensitivity analysis more purposeful, a measurement point can be established in the largest stress area, and the stress can be analyzed and designed.