Why In Modern Days Centrifugal Pump Designs Became So Much Important

By Author: micle lukas
Total Articles: 166
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Just like any other walks of field, pumping industry is also undergoing a technical developmental phase where more and more research is being carried out across the globe to search for the particular device which will serve the industry in a better way at low expense and low maintenance cost. Ranging from food and beverage industry to construction, chemical to mining, they get used in almost every aspects of life though the nature of fluids that is needed to be moved or transferred from one place to other is different in nature. While for chemical sector, it has to move chemically reactive, hazardous, flammable fluids whereas for mining it has to handle the mixture of solid with liquid or liquid with gas or some of the times solid with gas. Hence,the requirement for each and every sector is different in nature and needs proper investigation and research to cater the same.Also, experts of the fields are also being consulted to provide their inputs to tackle the situation and once the machine is ready, it is being tested thoroughly to check whether it can perform at the optimum level when it is under stress.If the device passes ...
... this stage as well, then it gets launched into the market with a vision to build a sound customer base through its efficiency.


Centrifugal pumps, made of cast iron, plastics or stainless steel, are designed in such a way so that they can increase (when they are in series combination) or decrease (when they are parallel in combination) the flow depending upon the situation.So, while manufacturing this type of pumps, centrifugal pump designs play a huge role in deciding the performance to suit the need of the companies.The three most important parts of such type of heavy duty machines are


a. Chamber or volute cashing where the impeller actually sits


b. Bearing house


c. Seal type which may cause fluid wastage and may cause difficulties for the owner. Depending upon the situation, seal can be of two categories – mechanical and packed gland. Also, mechanical ones have more options as cartridge styles without or with flushing options or rotating spring style.
Before deciding which type of pump any company require, they need to know some of the important information such as:-


1. type or nature of fluid is going to be pumped


2. amount of discharge pressure or head the machine can expect


3. Whether the it is a flooded suction or suction lift
There are various types of such pumps, based on designs, configurations such as:-
a. Vertical centrifugal


b. Horizontal centrifugal


c. Pump centrifugal


d. Impeller pumps –this type of device uses rubber rotors or impellers with vanes or flexible oriented blades. Normally the blades rub and bend against the casing when they rotate.


e. End suction – it comes with a casing where the suction comes from one direction and goes out through the other. They are normally single stage machines and have single impeller.


f. Self-priming


g. Circulation


h. motorpumps–this type of device are either having electric motor or uses a petrol/ diesel motor.


i. End suction


j. ISO or DIN


k. Double suction type


l. Regenerative type