Pump selection guide: Best uses of pumps

1. Classification Of Pumps And Their Uses

2. A pump is a device that transfers liquid from low head to high head and is used to increase the pressure of a liquid. The pump further is classified into two categories; rotodynamic pump and positive displacement pump.

3. Classification of Pump • Rotodynamic Pump ● Centrifugal pump ● Propeller pump • Positive Displacement Pump ● Reciprocating pump Piston pump Plunger pump Diaphragm pump ●Rotary  Gear pump  Vane pump  Lobe pump Screw pump • There are 8 HP diesel engine waterpumps, which have 8 HP (Horsepower) engine capacity. Horsepower is nothing but the unit used for output power or the rate at which it expends mechanical energy.

4. Rotodynamicpump • Rotodynamic has two meanings: roto means rotating component, and dynamic means a substance or a liquid has a high velocity. In Rotodynamic, the dynamic energy of the liquid is increased. The velocity of the liquid increases in Rotodynamic pumps. Further, the velocity is converted into pressure energy in another device. • This Rotodynamic pump operates on the principle of the rise in liquid pressure energy by dynamic action (increasing its velocity) of liquid. This velocity of the liquid is increased in an impeller—the velocity of the liquid supplies into the casing. In the casing, velocity energy converts into pressure energy.  • There are two types of pumps in a Rotodynamic pump which are centrifugal pump and propeller pump.

5. Centrifugal Pump • As we all know, centrifugal force increases the velocity of a liquid in this pump due to the centrifugal action. In a centrifugal pump, the fluid transfers from one rotor to another by rotational energy, these rotors are called impellers. The life expectancy of centrifugal pumps is between 5 to 10 years. The centrifugal pump use to pump water, bases, acids, mild liquids, etc. • Propeller pump • Propeller pumps are designed in a way depending on conventional rotary impeller design. These pumps use significant flow volume rates in various applications, and it has moderate requirements of the head.

6. Positive Displacement Pump • Positive displacement pumps operate on the definite quantity of liquid discharged or supplied from the pump. Due to the positive or actual displacement of the functional elements (like plunger, gear, piston, screws, vanes) are displaced or moved. This process is known as actual displacement.  • Due to this, the actual displacement of the pressure of the liquid element increases directly. This process is known as the positive displacement pump. In positive displacement, we don't require to increase the velocity or further conversion.  • Positive displacement pumps are further divided into two types - Reciprocating and Rotary pumps.

7. Reciprocating Pump • Reciprocating is a type of motion in which elements like a piston or other device elements move to the cylinder's end flow. This process is known as Reciprocating. In a reciprocating pump, the piston moves up and down inside the cylinder. This movement is called reciprocating motion.  • The reciprocating pump further divides into - piston pump, plunger pump, Diaphragm pump. • Piston and Plunger pump • Here the piston pump and plunger pump are similar; the only difference is the plunger replaces the piston. The difference between piston and plunger is that piston pumps have a larger diameter and a small length, whereas the plunger pump has a higher length and a small diameter. • Diaphragm pump • A diaphragm pump has two ways for the liquids to discharge. It is a type of positive displacement pump that uses a mixture of the reciprocating action of thermoplastic, rubber, or Teflon. • Rotary pump • Another category in a positive displacement pump is a Rotary pump. The other pump elements, like gear, vanes, and lobes screws, are rotary components. The rotary pump further divides into four pumps depending on these components (Gear, vane, lobe, Screw) like Gear pump, Vane pump, Lobe pump, and Screw pump.

8. Gear pump • In a gear pump, two gears are used. With the help of these gears, the pressure of the liquid increases.   • Vane pump  • In this pump, the vanes move inside and outside the pump. • Lobe pump • The lobe rotates in a lobe pump. There are many types of lobe that have three lobes or four lobes, or even more.  • Screw pump • In a screw pump, with the help of screws, we increase the pressure level of the liquid.

9. Uses of Pumps ● Pump water from the bore Wells.  ● The energy industry uses Pumping gas, operating cooling towers, or pumping oil. ● Pond and aquarium filtering uses a Pump. ●  8 HP Diesel Engine Water Pumps Manufacture mainly create pumps used to lift mud and water efficiently. ● For liquid injection and water-cooling purposes in the Automobile industry, they use pumps. ● To recycle wastewater, paper, pulp, etc., in the chemical industry, they use pumps.  ● In wastewater treatment plants, to recycle wastewater, they use pumps. ● For dewatering sludge, the industry uses pumps. ● To measure chemical additives in liquids, the industry uses pumps. ● Pumps are used for mining and are widely spread in the usage of mineral applications.  ● Pumps have demand or increase demand significantly in paper industries because the production in the paper industry is non-stoppable. 

10. Conclusion • In this article, we have discussed the classification of pumps and their uses of pumps. We hope you have understood the basics of pump classification and the usage of pumps in various fields. Thus, the applications of pipes are widespread in many industries.

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