In aquaculture the most widely used type of pump for recirculation systems are centrifugal pumps. Basically these pumps have two different parts, the engine and the hydraulic body. The engine is responsible to transform the electric energy into kinetic energy, transmitting motion to the shaft of the engine. The impeller is found in the hydraulic body joint at one end of the shaft, transmitting the rotational movement to the water, pushing it.


Most of the pumps also have a pre-filter placed at the entrance of the pump. It´s purpose is to protect the turbine from any solid particles that could carry the water.

The materials of the parts in contact with water are very important. First because in sea water facilities is essential to use materials resistant to marine corrosion, such as plastic, fiberglass, stainless steel or bronze. Moreover, except for those organisms that breathe out of water, it is not recommended the use of certain materials such as bronze, as it can be toxic for organisms. At the time of choosing the right pump for each type of installation it is important to consider the following system parameters:

:

- Flow: indicates the volume of recirculation water per unit of time, usually expressed in m3 / h

- Geometric Height: the vertical distance between the pump and the water surface. It is measured in metres (m)

- Load losses: These are energy losses due to friction of the water pipe and the various elements of water treatment system. Also usually measured in metres of water column (m.c.a.)

- Height gauge: the sum of the geometric height and losses. Expressed in metres of water column (m.c.a.).

 INNOVAQUA can help you choose:
- Format pump that best suits the installation.
- Calculation and choice of the pump best suited to the needs of the facility
- For fresh or salt water and other elements that can be pumped. Various materials of construction in accordance with the application.