A water ring vacuum pump is a type of positive displacement pump commonly used in industrial applications for creating a vacuum. It operates by using water as the sealing liquid, which forms a ring inside the pump casing. As the pump rotates, the water ring creates cavities that trap and expel gases or air from the system, generating a vacuum. These pumps are particularly useful for handling moist or corrosive gases and are valued for their simplicity, reliability, and ability to maintain consistent performance in various environmental conditions. Water ring vacuum pumps are often used in applications like distillation, dehydration, and waste treatment.