Check Valves: The Unsung Heroes of Fluid Systems
This article details the working principle of a check valve, which uses fluid pressure (or gravity) to open or close internal moving parts (such as the disc and ball), similar to a one-way door. It also lists the working principles and application scenarios of different types of check valves, and cites their widespread applications in the home, automotive, and medical fields. It emphasizes their importance in preventing pollution and protecting equipment, as well as key maintenance points such as regular cleaning and component replacement.