{"id":5227,"date":"2024-11-05T14:05:50","date_gmt":"2024-11-05T13:05:50","guid":{"rendered":"https:\/\/www.cdrpompe.com\/?p=5227"},"modified":"2025-02-21T11:52:29","modified_gmt":"2025-02-21T10:52:29","slug":"centrifugal-pump-impeller-types-and-characteristics","status":"publish","type":"post","link":"https:\/\/www.cdrpompe.com\/en\/centrifugal-pump-impeller-types-and-characteristics\/","title":{"rendered":"Centrifugal pump impeller: types and characteristics"},"content":{"rendered":"

The term<\/span> “centrifugal pump impeller”<\/b> refers to an essential component of this mechanism, responsible for the transfer of energy to the fluid to be pumped. This device rotates inside a casing and, through its design, performs a centrifugal movement that pushes the liquid outwards. The characteristics of the impeller, such as its geometry and material, are fundamental in determining the efficiency of the pump and its overall performance, influencing factors such as flow rate, head and energy consumption.<\/span><\/p>\n

 <\/p>\n

\"Girante<\/span><\/h2>\n

Centrifugal pump impeller<\/span>: types, characteristics and performance<\/span><\/h2>\n

The impeller is a <\/span>bladed disc<\/b> that rotates inside the <\/span>volute<\/b>, a snail-shaped casing. It is connected to a motor through a shaft, which allows it to turn at high speed. When the pump is running, the liquid enters the impeller and, due to the centrifugal force generated by the rotation, is pushed towards the periphery of the volute. This motion allows the liquid to exit the pump with a higher pressure than its inlet pressure, making the impeller fundamental for converting the mechanical energy of the motor into the kinetic and pressure energy of the fluid.<\/span><\/p>\n

Types of <\/span>centrifugal pump impeller<\/span>: closed and open<\/span><\/p>\n

There are various types of impeller, each suitable for different applications. In general, we can divide them into two main categories:<\/span><\/p>\n

Closed impeller<\/span><\/h3>\n

The <\/span>closed impeller<\/b> is characterised by a <\/span>counter disc<\/b> that completely encloses the blades. This configuration is ideal for clean fluids and applications that require high heads, where the liquid is forced with greater pressure. Some of the advantages of a closed impeller include:<\/span><\/p>\n