Question: What Are The Types Of Pumps?

What is pump and its types PDF?

A pump is a device used to move fluids, such as liquids, gases or slurries.

A pump displaces a volume by physical or mechanical action.

Pumps fall into three major groups: direct lift, displacement, and gravity pumps.

[ 1] Their names describe the method for moving a fluid..

When would you use a centrifugal pump?

When to Use Centrifugal and Positive Displacement Pumps It is best to use a centrifugal pump to handle a large volume of low viscosity fluid in a low pressure environment. The centrifugal pump works best when it is transferring water, however it can also handle the transfer of low viscosity chemicals and fuels.

What are the different types of water pumps?

Water Pump Types There are two basic types of water pumps: centrifugal and positive displacement. Both types are designed to move water from one place to another continuously. A centrifugal water pump uses a rotating impeller to move water into the pump and pressurize the discharge flow.

Which type of pump is used in house?

There are four primary types: sump pumps, sewage pumps, utility pumps and well pumps. Sump pumps remove water that collects in basins from around a home’s foundation. Many are submersible pumps that have a manual or semi-automatic motor housed in a water-tight compartment so the pump can be fully immersed in liquid.

Which pump is more efficient?

In general, a reciprocating pump is more efficient than a centrifugal pump. Reciprocating machines are generally applied on low-flow/high-head service. Centrifugal pumps can have efficiencies as low as 40 percent on low-flow/high-head service.

What is pump duty?

Defined as that Duty Point on the H-Q curve where a centrifugal pump operates at maximum efficiency. It is determined by the Flow Rate and the Total Head at the respective pump speed.

What are the different types of centrifugal pumps?

What are the main applications for centrifugal pumps?Type of centrifugal pumpApplicationChopper/grinder pumpWaste water in industrial, chemical and food processing/ sewageCirculator pumpHeating, ventilation and air conditioningMultistage pumpHigh pressure applicationsCryogenic pumpLiquid natural gas, coolants4 more rows

What does it mean when a pump is cavitating?

Simply defined, cavitation is the formation of bubbles or cavities in liquid, developed in areas of relatively low pressure around an impeller. The imploding or collapsing of these bubbles trigger intense shockwaves inside the pump, causing significant damage to the impeller and/or the pump housing.

What are the characteristics of centrifugal pump?

The momentum produces an increase in pressure or flow at the pump outlet. Positive displacement pumps have a constant torque characteristic, whereas centrifugal pumps demonstrate variable torque characteristics.

What is pump efficiency?

Pump efficiency is defined as the ratio of water horsepower output from the pump to the shaft horsepower input for the pump. … The efficiency of a particular pump is estimated by determining two values. These values are pump flow rate and total head.

What are mechanical pumps?

In mechanical pumps, the gas present in a vacuum system is transferred from a low pressure to a higher pressure region. In order to be efficient, the pump has to provide simultaneously a finite pumping speed and compression.

What are the two main types of water pumps?

Water pumps are mechanical or electromechanical devices that are designed to move water through pipes or hoses by creating a pressure differential. The two most common types of pumps used for pumping water are centrifugal pumps and positive displacement pumps.

What is the working principle of centrifugal pump?

A centrifugal pump converts rotational energy, often from a motor, to energy in a moving fluid. The two main parts that are responsible for the conversion of energy are the impeller and the casing. The impeller is the rotating part of the pump and the casing is the airtight passage which surrounds the impeller.

What are 3 types of hydraulic pumps?

There are typically three types of hydraulic pump constructions found in mobile hydraulic applications. These include gear, piston, and vane; however, there are also clutch pumps, dump pumps, and pumps for refuse vehicles such as dry valve pumps and Muncie Power Products’ Live PakTM.

What are the advantages and disadvantages of centrifugal pump?

ADVANTAGES AND DISADVANTAGES OF CENTRIFUGAL PUMPS. – The advantages of centrifugal pumps include simplicity, compactness, weight saving, and adaptability to high-speed prime movers. One disadvantage of centrifugal pumps is their relatively poor suction power.