An Overview on Centrifugal Pumps

Centrifugal pumps are most commonly used in agriculture, power generating plants, chemical, pharmaceutical, and many others. In simple terms, centrifugal pumps help to transfer of water or other fluids. The pump uses an impeller to move fluids from one location to another. Centrifugal pumps are manufactured in a way that they have a capacity to handle large quantities of liquids and the ability to adjust their high flow rates over a wide range. Hydrostatic test pump is required to generate the centrifugal curve and net positive suction head calculation. These test pumps are portable and used to measure or test the water meters, and pressure levels.

How does a centrifugal pump work?

A motor to energy in a moving fluid is converted by the centrifugal pump by two main parts that is an impeller and casing. An impeller is a part that rotates the pump and casing is the passage that surrounds the impeller. Choosing a centrifugal pump manufacturer is important as they have the best knowledge of which pump to be used according to your business and use. Certain important factors are to be taken care of while selecting a pump.

• Working fluid – The resistance to shear when energy is applied can be defined as fluid viscosity. As mentioned above if there is a high flow rate then a centrifugal pump is suitable for low viscosity fluid as the pumping would increase the action of the high liquid.
• Density and gravity – Fluid’s mass per unit volume and gravity of fluid is the ratio for the density of the water. If it is a fluid and not water, it is important to consider the specific density and gravity to avoid the negative effect of work performed by the pump.
• Cavitations – This term refers to the formation of bubbles and cavities due to low pressure developed in and around the impeller which damages the impeller decreasing the flow/pressure rates.
• Vapor pressure – A temperature is set to be given at which a fluid will change to a vapor. It is provided to avoid any kind of damage to the bearing and cavitations. There shouldn’t be dry running when the fluid is evaporated.
• Temperature and pressure – These two are important to be maintained for any operation. Special gaskets are required for high-temperature pumping and an adequately designed pressure that retains casing can be required for high-pressure conditions.

Leading manufacturers like Ambica Machine Tools can provide various types of centrifugal pumps for different industry.