What is the right Pump?

As you already know, not any one pump is the same, every pump has its benefits for a specific application and therefore it is very important to understand what product is right for the job? So here at BEPumps, we thought we’d give you a quick overview of the top 7 water pumps products and describe exactly how they work.

Centrifugal Pumps

Made up of Motor, Impeller and casing. A centrifugal pump moves water by converting rotational kinetic energy into hydro dynamics energy. A motor produces energy, to spin the impeller. As water contacts the impeller it is accelerated to move outward through the pump to either a diffuser or a volute chamber, where it then leaves the pump. Centrifugal pumps are best used for water, but are often used for sewage, chemicals, slurries, solids in liquids etc.

Rotary Vane Pumps

This is a positive-displacement pump. It has vanes which are mounted to a rotor. These vanes rotate with a cavity. The centres of the cavity and rotor are slightly offset, causing what is known as eccentricity. Vane pumps are commonly used as high-pressure hydraulic pumps and in automobiles, including supercharging, power-steering, air conditioning and automatic-transmission pumps.

Other uses for this type of pump include espresso and soft drink dispensing machines and some air conditioning units.

Double Diaphragm Pumps (AODD/EODD)

Diaphragm pumps are self-priming positive displacement pump that uses two diaphragms made of thermoplastic, Teflon, rubber, etc which work with a reciprocating action. Known for being extremely efficient (up to 97%) , and handle viscous fluids, solids and corrosive liquids. You would mostly find these pumps installed on industrial applications, but they are also used on the fish tank filters and even artificial hearts, yes hearts!

Submersible Pumps

As the name implies these can be fully submerged in water. The units are supplied as typically IP68 Rated and has a fully sealed motor directly connected to the volute. Submersible pumps don’t typically suffer from pump cavitation (Subject to NPSH). These efficient pump are used mostly for liquids within wells and sumps. Typically the liquid are in the form of dirty water (with solids), sewage, drainage, slurry, and general industrial pumping. In applications where a jet pump or a submersible pump can be used, the submersible pump is more efficient.

Pool Pumps

A circulator pump specifically made for swimming pools. Usage of the pumps can vary from 24 hours a day for public pools, while residential swimming pool pumps run 4 hours per day when the pool is not in use, and between 6 and 12 hours a day on an electric timer during swimming season. They typically use 0.5kW to 2kW power. Some pool pumps have two speeds to cut down on power costs, while some now use smaller motors with heavier windings. They are usually self-priming, and most have a strainer or filtering unit to keep hair and other foreign objects from getting into the pump.

Clean Water Pumps

Either self-priming or just standard centrifugal booster pumps. Clean water pumps must comply with water regulation and be WRAS approved within the united Kingdom. a built-in ejector system is a normal feature for self priming units. The pump are often made of stainless steel, and come in single or multi-stage models. As the name implies, they are appropriate for drinking water.

Peristaltic Pumps

Interesting fact, the Peristaltic pumps mimic the gastro-intestinal tract’s method of moving food, called peristalsis… Ok not that interesting, but due to the nature and material range of peristaltic pumping they are very versatile. Product goes through a hose, which squeezes at one end to force water through to the other end, just like how you would squeeze tooth paste from its tube. However, as oppose to your fingers peristaltic pumps use rollers that move in the direction the fluid is being pushed. Some uses for peristaltic pumps: wineries, chlorine tanks, sewage treatment plants, slurry and the pumping of viscous products.


Hopefully now you understand the differences between the pumps and can decide which pump may be best for you. But it doesn’t stop there. This is only an introduction to the top 7 pump range, however for further information, please feel free to visit other articles which goes into more details.Alternatively, pick up the phone and speak to one of our engineers who will be more than willing to help you assist you with your application.