How to select the right water pumps

How to Select the Right Water Pumps

Choosing the right water pump is vital to improving the performance of your water system and avoiding breakdowns. It's essential to understand the pump's specifications before installing it, as pumps are designed to operate in specific environments and conditions. If used improperly, they can cause system malfunctions, causing water transfer problems.

In this article, we'll cover the basic information you need to consider when choosing the right water pump.

1. Type of liquid

One of the main factors to consider when selecting a pump is the type of fluid to be pumped. There are two main types of fluids:

• Pure water: This is clean water such as drinking water, seawater, or chlorinated water. Most electric pumps are designed to work with these types of water.

• Dirty water: This refers to sewage or water containing solids such as dirt and debris. Suitable pumps must be selected for this type of water, as they require specially designed pumps to handle solids that might clog the pump.

2. Installation location

The location of the pump installation is a crucial factor in determining the type of pump. For example:

• If water is extracted from wells , a submersible pump is the ideal choice. The pump diameter is selected based on the diameter of the well to ensure efficient performance.

• If the water comes from a river or lake , a surface pump will be chosen.

• If the pump is higher than the water level we want to pump, suction pumps are best.

• If the pump is at the same water level or lower than the water level, pressure pumps will be used.

3. Flow

Flow is the amount of water a pump can move over a specific period of time. Flow is measured in liters per minute . To understand this practically, if you have an 1100-liter tank that fills in 30 minutes, the flow rate can be calculated by dividing the capacity by the time, as follows:

$$\frac{1100 \text{ لتر}}$$ = 36.67 liters per minute

You must know the appropriate flow rate of the pump according to your needs to ensure that you do not lose water or cause any problems with the system.

4. Total dynamic height

Dynamic headroom is determined based on several factors, such as friction losses , discharge height , and suction height . It is calculated as follows:

$$\text{مجموع الرأس الديناميكي} = \text{خسائر الاحتكاك} + \text{ارتفاع التفريغ} + \text{ارتفاع الشفط}$$

Friction losses are the effects caused by water passing through pipes and various materials, such as elbows and valves. Accurately determining these losses is important to ensure the pump can meet the requirements effectively.

Conclusion

Choosing the right pump depends on a number of factors, such as fluid type, installation location, flow rate, and pressure rise. When making your decision, you should consider these factors to ensure optimal performance and avoid potential failures.

If you'd like to learn more about choosing the right equipment for water system maintenance, check out Jaafar Shop's blog, which specializes in selling hand tools and equipment in Jordan and Egypt.

Visit Jaafar Shop to find all your electrical and hand tools and equipment needs, in addition to home and garden maintenance supplies.