There is an abundance of pumps for pumping liquids on the market. Each of them serves a different purpose. It can be difficult to select a pump that fits your purpose without knowing their specifications and how they work. You might be wondering about which pump to buy when building a house, installing a new pool, or simply replacing an existing pump. This guide can help you make a selection by giving you a run-down of the different kinds of pumps available on the market.
When choosing a pump, there are a few basic factors that you have to keep in mind. The foremost important factor to consider is the flow rate. This is what will influence the size and capacity of the pump you need. It is measured in gallons per minute. If you have a small volume or liquid to pump, such as a water tank, you will need a smaller pump than if you need to pump a pool. Remember that your pump’s capacity should be slightly more than the amount of water you need to pump.
Another factor that you have to keep in mind is the viscosity of the fluid. You will need a different type of pump based on how runny the fluid is. You can also look out for whether the pump is electronic. This makes it easier to control the flow rate and other factors. These, combined with other considerations such as whether the pump will be located indoors or outdoors and the temperature of the fluid it will pump, will help you choose between these main types of pumps.
1. Dosing pumps
Dosing or metering pumps are used to mix different types of fluids together. They discharge different types of chemicals and fluids and cause them to mix together. They are very useful as they can control the amount of chemical released, which is why they are called “dosing” pumps. They can also mix together a wide variety of fluids such as acids, alkaline solutions, viscous liquid, and solvents. A good example of these is Grundfos dosing pumps, which are used in swimming pools and water treatment plants.
2. Centrifugal pumps
These work by rotating parts called impellers, driving out liquid through generating centrifugal force. Centrifugal pumps work best with non-viscous fluids such as water. They are mainly used for supplying water in buildings and heating and cooling fluids.
3. Piston pumps
These are a type of positive displacement pump. A piston is a cavity that expands and contracts. This causes the water to fill up the cavity when it expands and the water is pushed out when the cavity closes. Valves in the pump control the flow of liquid. They are mainly used for viscous fluids such as oil.
These are just the three main types of pumps that exist. A little research will reveal many more. Each serves a different purpose. It is important to choose a pump that specifically fits your purpose. Even a slight difference in pump design and purpose can make a large difference in terms of efficiency.