tank vessel cassion的区别? got the following from another forum: the primary difference between the two terms is the design pressure of the component. the words "tank" and "vessel" are sometimes used interchangably. "tank" essentially means "container" "pressure vessel" always refers to a component that was designed to the asme or bs5500 or other nationally recognized code or standard. anything over a design pressure of ~15 psig should be designed to a pv code. any component with a flat bottom is usually a called a tank. 資料來源: http:// 查看更多