Multistage pumps are very useful in industries particularly when in use of high pressure systems. So many industries first choose these pump sets because these sets can handle heavy pressure. This blog will disclose about the work process of Multistage Pump. Not only work, but also discover its advantages.
How does a multistage pump Work?
Here’s a step-by-step breakdown of their working process:
Priming the Pump: The fluid is drawn into the pump inlet at suction line pressure into the first chamber.
Fluid Movement Through Impellers: The fluid moves through a set of impellers starting from the first, on the left side of the figure to the last on the right side of the figure. Every impeller raises the pressure of the fluid before it is passed on to the next stage.
Pressure Build-Up: The first impeller discharges into the next one and the pressure increases in each stage even more. The last pressure of discharge of the pump increases with the number of impellers or the number of stages. More impellers result in higher pressure but the flow rate is constant for a given RPM of the pump.
Advantages of Multistage Pumps
Multistage centrifugal pumps have several impellers and therefore they can increase pressure in series from one stage to the other and therefore they develop higher pressures than a similar sized single impeller pump.
The head per stage is less, which implies that it is possible to employ comparatively small-sized impellers with narrow clearances and therefore, leakage loss will be small.
Multistage pumps also help in conserving space on the floor as well as in the engine room. In addition, these pumps have small impeller diameters and narrow clearances, they also utilise less motor horsepower and hence are more efficient.
Multi-stage pumps of the same discharge pressure output are less noisy compared to single-stage pumps, the higher the number of stages.
Applications of Multistage Pumps
Due to the tight clearance between the impeller and the pump volute, the multistage pumps cannot be used with solids and polishing contents unless the pump is oversized and hence, they are used with water and other low viscosity fluids. This combined with their high-pressure range, makes multistage water pumps popular in applications including:
Boiler feed
In industries, multistage pumps are used as boiler feed pumps. They force water at high pressure to the boilers which is central to creating steam and ensuring the efficient functioning of boilers.
Water supply boosting
In municipal water supply systems, multistage pumps are often applied to regulate the pressure of the supplied water. They help in the conveyance of water from treatment plants to the shopper’s compounds, whether residential or commercial.
Irrigation
In agriculture, multistage pumps are used in the irrigation process of crops and plants. It uses the required effort to spray water on vast acreage to guarantee the growth of crops.
Water circulation
Multistage pumps are good in water circulation. Filtration, addition of chemicals and distribution of the treated water are well suited to bear high pressure and high flow rate of water.
Fire Fighting
Multistage pumps are also used in fire fighting systems. They assure of a steady and powerful water supply which is crucial in putting out fires in the shortest time possible.
Selecting the Proper Multistage Pump
Selecting the right multistage pump depends on several factors:
Flow Rate: This is the most important step when using the product as it helps one to know the flow rate that is needed for the application at hand.
Pressure Requirements: Determine the required pressure to meet your expectations with a pump.
Fluid Type: Check suitability for the type of fluid that is being pumped.
Energy Source: There are electric-powered multistage pumps and diesel engine powered multistage pumps. For more reliable models, it is recommended to turn to the dealers of kirloskar pumpset, which provide a wide range of diesel engine pump sets depending on the usage.
Conclusion
Multistage pumps are perfect options for industries. No matter which type of pump sets you will prefer. But if you want to get the best kirloskar pumpset dealers for multistage pumps and diesel engine pump sets you can check out the above guides.