Roottorivaihepumpput

A roottorivaihepumppu, also known as a rotary vane pump, is a type of positive displacement pump used for a variety of industrial and scientific applications. It operates by using a rotor with sliding vanes to move fluid. The rotor is eccentrically mounted within a cylindrical casing. As the rotor turns, the vanes slide in and out of slots in the rotor, maintaining contact with the casing wall due to centrifugal force and often spring loading. This action creates a series of expanding and contracting chambers between the rotor, vanes, and casing. Fluid is drawn into the expanding chambers at the inlet port, trapped, and then forced out through the outlet port as the chambers contract.

Roottorivaihepumpput are known for their simple design, reliability, and ability to achieve relatively high vacuum levels. They are often used for creating vacuum in systems, for transferring liquids, and in applications where a consistent flow rate is required. They can handle both gases and liquids, though their efficiency can be affected by the viscosity and temperature of the fluid being pumped. Maintenance typically involves lubrication and occasional replacement of vanes and seals. They are commonly found in laboratories, manufacturing processes, and in refrigeration and air conditioning systems for evacuation purposes.