Flow metering peristaltic pump roller with rotation to compress the pipe or hose to produce a vacuum, so that the fluid through the pipe suction, this process is called peristalsis. The peristaltic pump consists of three parts: the driver, the pump head and the hose. The fluid is isolated in the pump tube, the pump tube can be quickly replaced, the fluid can be retrograde, can be dry run, and the maintenance cost is low, which constitute the main competitive advantages of peristaltic pumps.

Flow metering peristaltic pump is the product of modern industrial development, widely used in pharmaceutical, food, chemical and other industries, conveying some sensitive, viscous, highly corrosive, with grinding, high purity requirements, and containing a certain granular material medium.

The negative pressure and liquid inhalation of peristaltic pump are generated by the elasticity of the pump tube itself, the rebound speed and time of the pump tube are fixed, and the resilience of the pump tube is also fixed. Because of this characteristic, determines the peristaltic pump produced by the suction will be affected by the hardness of the pump tube, the common experimental peristaltic pump can not quickly transport poor fluidity and free flow of slow liquid, need to transport these poor fluidity and high viscosity of the liquid needs to use higher pressure hardness higher resilience and stronger peristaltic pump.

The peristaltic pump will produce a fixed amount of liquid per revolution. Therefore, the peristaltic pump can change the flow rate by adjusting the speed of the pump, and the conveying accuracy is also very high.

Advantages of flow metering peristaltic pump:

1. no pollution: the fluid only contacts the pump pipe, not the pump body

2. high accuracy: repeat accuracy, high stability accuracy

3. low shear force: it is an ideal tool for transporting shear-sensitive and erosive fluids

4. good sealing: has good self-priming ability, can idling, can prevent reflux

5. peristaltic pump maintenance is simple: no valves and seals, hose is vulnerable parts

6. can pump liquid, gas, solid or multi-phase mixture