One of the most important points about the home water pump and how to choose it is to know the different types of these products. Water pumps are classified according to the height of water supply and flow rate (amount of water passing in time). Of course, in terms of structure, these products have different categories and each of its types is used in specific conditions. In the following, we will introduce the most used domestic water pumps to your service.
Plate water pump
Jet water pump
These water pumps, which are also known as centrifugal water pumps, are widely used in domestic applications. The structure of these pumps is such that they can be used in the field of transferring water from depth to the surface of the ground, increasing water pressure in multi-story houses, etc. The working process of these pumps is such that a vacuum is created in their suction part and this causes the air in the water line to be lost to the pump. After the disturbing air is expelled in the pump inlet duct, due to the rotation of the centrifuge and the creation of this vacuum, the water enters the engine and exits from the other side. You should pay attention to the fact that the housing and body of these pumps must always be placed in water so that they can work properly.
Two -pump water pump
These pumps have a similar structure to centrifugal pumps, but their main difference with jet or centrifugal pumps is that back-to-back impellers are used. They also use it to pump non-hazardous liquids and clean water. The presence of two propellers in these pumps has made them have a higher water flow rate and more transmission power than other models. For this reason, these pumps are used in houses that have many floors and units and a powerful pump is needed to transfer water to the upper floors and different units of the building. The impellers used in this type of pump are usually made of steel, bakelite or brass. Depending on the desired liquid that you intend to transfer, you can use one of these items. The most common use of these pumps is to strengthen the pressure of pipelines in domestic, agricultural, animal husbandry, etc.
Environmental water pump
This type of water pump, which in some cases is also known as turbine or recycled water pumps, has a high speed and a suitable flow rate compared to its size. This is why they are widely used in home use today. For places where we need a high flow rate and also a higher head (transmission height), it is better to go for an environmental water pump, because these products can offer you more efficiency in this field with less energy consumption. The way these pumps work is that when the turbine pumps are started, the liquid inside them is sucked and directly enters a ring channel called the impeller, which is rotating. Inside the impeller, there are short vanes that are placed on the perimeter of this section and move inside the channel. This makes the desired liquid enter a spiral environment and after exiting, it has a lot of energy and a suitable pressure.
How to choose a home water pump
● Check the pump diagram
Checking the pump diagram is one of the basic methods for choosing the correct home water pump. In this diagram, there is an inverse relationship between height and flow rate. In this way, the more the pump moves the water to a higher height, the lower its flow rate will be. Finally, when the height reaches its maximum, the discharge will reach zero. The right pump for you should be able to reach 50% of its total flow rate to the highest part of the building. The water in the highest part of your building should be about 1 bar or 14.5 psi. On the other hand, for every 10 meters of height in your building and without considering the friction of the pipes, which will reduce the pressure; For every 10 meters you need 1 bar or 14.5 psi of pressure. For example, for a 4-unit residential complex with a 15-meter pilot, you need a household water pump with a head of 25 to 30 meters. >
The flow rate of the domestic water pump is directly related to the number of faucets. If we consider an open valve per unit time for each building unit, the flow rate of that valve is 10 liters per minute. For a four-unit building, we need a domestic water pump with a flow rate of 50 liters per minute. ● Pump noise level
In most cases, pumps And they produce a lot of noise that will disturb people living in a building. For this reason, you should consider this point at the time of purchase. Today, many pumps have special coatings that reduce their noise to a great extent. Also, different types of household electric pumps have different sound levels; For example, the sound of plate pumps is less than jet pumps.
● Quality and reliability
Household water pumps today are available in different brands and with Different degrees of quality enter the market. When buying products, it is better to look at the quality first. Because many people throw away their money by buying cheap pumps in the early stages and after a while they are forced to go for quality pumps with a higher price.