在封闭系统中，控制阀的设计和操作需要在实验条件下测试阀门的不同流量特性。针对压力损失和压力恢复等特性，发布了不同的测试标准和推荐的测试程序。然而，关于气穴和操作极限的测试程序的讨论很少。详细信息介绍了试验程序和不同空化极限的定义。 讨论了压力、尺寸和流量系数等变量的影响，以及设计方程和数据，用于根据系统压力的变化缩放空化信息。包括9个参考文献、表格、图表。

The design and operation of control valves in a closed system require testing of the different flow characteristics of the valves under experimental conditions. Different testing standards and recommended testing procedures have been published for characteristics such as pressure loss and pressure recovery. However, discussion concerning the testing procedures for cavitation and operation limits is scarce. Detailed information is presented on testing procedures and the definitions for the different cavitation limits. The effects of the variables of pressure, size, and flow coefficients are discussed, along with design equations and data for scaling cavitation information with changes in system pressure. Includes 9 references, table, figures.