Which type of pump may be used as the priming pump for a centrifugal pump?

A rotary vane pump is an excellent choice for use as a priming pump for a centrifugal pump due to its ability to create a strong vacuum and efficiently remove air from the pump casing and suction line. When priming a centrifugal pump, it is crucial to eliminate air to ensure that liquid can flow freely into the pump and achieve proper operation.

Rotary vane pumps are designed to provide consistent suction and are capable of handling low-viscosity liquids without compromising the flow rate. Their design allows for the creation of a vacuum that can effectively pull liquid into the centrifugal pump, facilitating its operation once it is primed.

In contrast, although other pump types like gear pumps, diaphragm pumps, and peristaltic pumps can move fluid, they may not generate the same level of vacuum efficiently or may not be suited for the specific requirements of priming a centrifugal pump. For example, gear pumps rely on meshing gears which can lead to inefficiencies when trying to remove air, while diaphragm pumps require specific conditions for optimal operation and may not yield enough suction for effective priming in all situations. Peristaltic pumps operate by compressing a hose, which can be effective for certain applications but doesn’t achieve the same vacuum levels necessary for efficient prim