Hai moitos factores a ter en conta á hora de seleccionar un Bomba de carcasa dividida axial e impulsor correctamente. 

En primeiro lugar, necesitamos saber onde hai que transportar o fluído e a que caudal. A combinación de carga e caudal necesaria chámase punto de traballo. O punto de traballo está directamente relacionado coa xeometría do impulsor requirida. As aplicacións con bombeo vertical longo (cabeza alta) requiren impulsores de maior diámetro exterior que as aplicacións con bombeo vertical curto (bombeo).

Another consideration that is directly related to impeller size is the expected solids content in the application. Many applications have a variety of solids in the pumped media. These solids can range from small abrasive debris such as sand or metal shavings to fine fibrous materials to large solids the size of a baseball or larger. The pump and impeller selected must be able to pass these solids while avoiding clogging and damage from wear. Additional consideration must also be given to the equipment downstream of the Bomba de carcasa dividida axial. While a pump can be selected to pass a specific type of solids, it cannot be assumed that the downstream piping, valves, and other process equipment will have the same solids handling capabilities. Knowing the expected solids content in the liquid is critical not only to selecting the right size pump and impeller, but also to selecting the impeller style that best suits the application.

Un dos impulsores de manipulación de sólidos máis comúns é o impulsor aberto. Este impulsor utilízase habitualmente no tratamento de augas fecais e residuais e ten unha xeometría que inclúe pasos entre as palas co lado aberto orientado á entrada. Os espazos entre as palas proporcionan un camiño suave para que o impulsor empuxa os sólidos entrantes desde o orificio de succión do impulsor ata a voluta e, finalmente, a través da descarga da bomba.

Outra opción para a manipulación de sólidos é o vórtice ou o impulsor empotrado. Este tipo de impulsor está montado dentro dunha carcasa (creando un gran espazo aberto entre o impulsor e o porto de succión) e induce o movemento do fluído a través de vórtices creados pola rápida rotación do impulsor. Aínda que este enfoque non é tan eficiente, proporciona moitos beneficios para o paso de sólidos. As principais vantaxes son un gran espazo libre e unha mínima obstrución ao paso de sólidos.

Pumps used at high altitudes have their own set of solids handling considerations. Since these applications typically use smaller piping, the solids passage size of the entire system must be considered, not just the pump. Typically, the axial caso dividido pump manufacturers offering high-pressure pumps will include a strainer at the inlet to prevent large solids from entering the pump. This is ideal for high-pressure applications where minimal solids are expected, but can cause clogging if enough solids accumulate around the screen surface.

There are many factors to consider when choosing the right axial split bomba de caixa and impeller, and understanding the various styles of pumps and impellers is often one of the most critical steps.