What are the classifications of self-priming pumps ?

The self-priming centrifugal pump is based on the centrifugal force to transport water. It is mainly composed of six parts: impeller, pump body, pump shaft, bearing, sealing ring and stuffing box. It has been widely used in people's daily production and life. Play a very important role.

The type of self-priming centrifugal pump is mainly divided into impellers. According to the impeller suction mode, the number of impellers, the impeller structure and the working pressure, the following types can be divided into the following categories:

1. According to the impeller suction mode, the self-priming centrifugal pump can be divided into two types: single-suction self-priming centrifugal pump and double-suction self-priming centrifugal pump;

2. According to the impeller structure, it can be divided into three types: open-type impeller self-priming centrifugal pump, semi-opening impeller self-priming centrifugal pump and closed impeller self-priming centrifugal pump;

3. According to the number of impellers, it can be divided into two types: single-stage self-priming centrifugal pump and multi-stage self-priming centrifugal pump;

4. According to the working pressure, the self-priming centrifugal pump can be divided into four types: low-pressure self-priming centrifugal pump, medium-pressure self-priming centrifugal pump, high-pressure self-priming centrifugal pump and vertical self-priming centrifugal pump .