What is the difference between a cam rotor pump and a gear pump?

Many users have doubts about choosing a rotor pump and a gear pump, so what are the differences between the two devices

The rotor pump is a multi-purpose bidirectional positive displacement pump manufactured using technology, widely used in industries such as petrochemical, fine chemical, daily chemical, pharmaceutical, food, environmental protection, papermaking, coatings, metallurgy, etc. At present, the cam rotor pump produced by Hangyuan Pump Industry has two rotors that do not directly contact and mesh. There are gaps in front of all the relative flow components inside the pump, which is beneficial for providing pump life and allowing the liquid conveyed by the pump to contain fine solid particles, which can effectively reduce the probability of particle wear and protect the integrity of particles

However, gear pumps are indeed positive displacement rotary pumps.

. Its working principle is that one of the driving gears in a pair of meshing gears is driven by an electric motor to rotate, while the other driven gear meshes with the driving gear and rotates. As the two teeth gradually separate, the volume of the working space gradually increases, forming a partial vacuum. The liquid is sucked in through the suction tube under the action of atmospheric pressure. The liquid sucked in is pushed out by the gears along the inner wall of the pump. When the main and driven gears continue to rotate, the pump continuously sucks in and discharges the liquid. This is the characteristic of gear pumps

The main difference between the two is that gear pumps are generally used as metering pumps, which have small processing but high head.

. The dosage is easy to control. Rotary pumps are generally used to transport large amounts of liquids, characterized by stable performance, good corrosiveness, and particularly suitable for conveying media containing solid particles, fibers, or highly corrosive, shear sensitive, or gas containing media

Understanding the differences between rotary pumps and ordinary gear pumps can help users choose better ones.