Peristaltic Pump Working Principle

A peristaltic pump, also known as a hose pump, is a type of pump that transports fluids by squeezing a flexible tube. It operates by utilizing rotating rollers (or a rotor) to compress the tube, causing the fluid to be propelled from one end of the tube to the other. The main advantages of peristaltic pumps include self-priming capability, bidirectional flow, the ability to handle fluids with bubbles and particles, and simple structure and easy maintenance.

The main components of a peristaltic pump are the tube, rollers (or rotor), pump housing, and drive. The tube is typically made of wear-resistant and corrosion-resistant materials such as rubber, silicone, or polyurethane. The rollers (or rotor) compress the tube to form a closed chamber, thereby propelling the fluid forward. The pump housing supports the rollers (or rotor) and tube, ensuring their proper operation. The drive is responsible for rotating the rollers (or rotor).

The flow rate of a peristaltic pump can be adjusted by changing the speed of the rollers (or rotor), changing the diameter of the tube, or changing the stroke of the pump. Peristaltic pumps are widely used in many fields, such as biomedicine, chemical engineering, environmental protection, and food and beverage industries.