Comparison between gear pump and screw pump
Comparison between gear pump and screw pump: Both belong to positive displacement pumps, so their performance is basically similar - they can stably transport high viscosity substances and both have higher conveying pressure. However, the screw pump has a major drawback that determines its unsuitability - its short service life is determined by the non streamlined surface of the screw pump and numerous defects in the chamber, while this pump is easier to transport high viscosity media due to the streamline structure of the rotor and the absence of dead points and non-metallic parts in the rotor chamber. The working principle of Roots pump: Cam pump, also known as Roots pump, stainless steel rotor pump, cam pump, universal conveying pump, high concentration slurry pump, etc. The electric motor reduces the speed through a reducer to bring two synchronous and counter rotating rotors to generate suction (vacuum degree) at the inlet during the rotation process, thereby sucking in the material to be conveyed.
Product features of gear pumps: Long service life: Maintain a certain gap between the two wheels, without friction or wear. There is no contact between rotors, and there is no wear and tear even after long-term use. The operation is smooth, the noise is low, and the efficiency is high. Widely applicable: It is an ideal product to replace screw pumps for conveying media with high viscosity, concentration, and task containing particles. This pump belongs to the positive displacement pump, and the delivery flow can be accurately controlled or easily made into a variable displacement pump. The output flow rate of a centrifugal pump cannot be controlled and decreases with an increase in drag; This pump has strong self-priming ability, and the centrifugal pump must be filled with liquid before starting. The speed of this pump is very low, usually between 200rmp and 600rmp, and the conveyed material is smoothly output without damaging its composition. The centrifugal pump has a high rotational speed, and the conveyed material is subjected to strong impact and centrifugal force.