centrifugal electro-pump ETA 250-500   1450 Rpm

Description

centrifugal electro-pump ETA 250-500   1450 Rpm

Centrifugal electro-pump ETA 250-500  1450 Rpm electric motor is  centrifugal type .is produced only in different sizes from 32 mm to 300 mm. The body and impeller of these pumps are made of cast iron and can be made with other materials if the customer needs. Eta pumps are able to transfer a large volume of liquid. These pumps are mainly used in industrial, production and process units. according to the size, they are coupled with 1450 rpm and 2900 rpm engines. The rotating system of these pumps is of the bearing type, which is lubricated by oil

Application of ETA series centrifugal pump
Suitable for supplying pressure to water supply lines
Fire fighting systems
Industrial uses
Irrigation expenses
Agricultural uses
Air conditioning systems

Due to the performance and optimal drainage of the centrifugal pump, it can be said that it is one of the most widely used pumps in various industries .

One of the unique features of this pump model is that it always provides a specific amount of water flow at a specific and constant pressure, and increases the volume and pressure of the required water consumption.  these models of pumps are designed and manufactured in different types due to their wide application and are used in different fields . Due to the favorable application of this pump model, it can be used to move liquids and fluids in domestic, industrial, and agricultural fields.

Select the required pump design

In the following, we want to choose the ETA centrifugal pump, whose flow rate and height are 50 cubic meters per hour and 29 meters, respectively.

1) Pump selection:

At first, by referring to the overlap curve of centrifugal pumps, we will have two choices with these specifications:

a. Pump 315-65, 1450 rpm

b. Pump 50-160 rpm 2900

According to the physical laws, we find that pumps at high speeds have more severe depreciations than when

working at low speeds, and if the pump is working continuously, we must use the A pump (315-65).

2) Determination of propeller diameter:

We refer to the hydraulic characteristic curve of centrifugal pump 65-315 at 1450 rpm. On the curve, he found the intersection point of 50 cubic meters per hour and the height of 29 meters, and the first curve above this point, which is related to the propeller with 310 blade, is:

65-315a 310, 1450 rpm

3) Pump efficiency:

The efficiency of the pump in this example is about 65.2%.

4) Choosing an electric motor:

To choose the electric motor, the end of the power curve is taken into consideration and the load of the propeller is 310 and we reach the number of 8.2 KW. Therefore, we choose the correct performance of the electric motor of 11 kW, 1450 rpm.

Overlap curve of ETA centrifugal pumps

Watering chart