Submersible Pump Power Consumption

How Much Power Does My Submersible Pump Need?

History has taught modern man not only the starting stages of submersible pumps but also how improvements in technology and design have afforded the multiple uses of them today in the residential, commercial, industrial, and agricultural sectors. When it comes to pump technology at its finest, we at Prochem offer a wide range of submersible pumps for applications in all sectors.

The Right Pump for Your Application

As the name suggests, submersible pumps are used in applications where the pump needs to be completely submerged in the fluid that needs to be effectively pumped out. Available in varying sizes and models, they distinguish themselves in terms of the liquid that needs to be pumped. Some are purely for pumping clean water (for example, excess rainwater), whereas others have been specifically designed to process liquid that contains small particles. Heavy-duty submersible pumps, used in industrial applications such as wastewater and sewage, can process liquids containing large solid particles.

When it comes to the amount of power needed to run your submersible pump, the amount of KW (kilowatt) power needed depends on the application and the length of time the pump needs to operate.

Operating Capacity of Submersible Pumps

As previously mentioned, the length of time the pump operates determines the KW usage. For example, should your pump run continuously for 8 hours a day, using approximately 200 watts, you will be using almost 0.2kWH (kilowatts per hour). Smaller models, mostly for domestic and light commercial use, use between 2.2KW and 75KW accommodating solids up to 55mm in diameter. The bigger the pump, the more KW power will be used.

The amount of wattage used is dependent on the HP (horsepower) of the engine. For example, a 1HP engine pulls approximately 746W but this will vary according to the operating conditions.

Increased Efficiency

With the mounting concerns regarding energy consumption, you need to make sure that the submersible pump you are using is the right size for the job at hand. Oversizing a pump can increase your energy consumption by up to 30%. Selecting a pump that is operating as close to its best efficiency point as possible will reduce the amount of energy used, saving you money in the long run.

Tips For Choosing a Submersible PumpEbara Pumps - Submersible Pumps

Don’t know which pumps to choose? Here are a few tips:

  • Capacity of the pump – some pumps have a liquid-carrying capacity of up to 18,000 litres per hour. Make sure that the pump you select has the capacity you require.
  • Delivery head – this refers to the maximum height that the pump can carry water. Some pumps have a delivery height of 8 metres, whilst others have less. Bear in mind the maximum delivery height you need.
  • Automatic or manual pump switch – if you choose to operate your pump manually, ensure that you switch it off before it runs dry. An automatic switch (floater) will ensure that your submersible pump will never run dry.

Consult with the Leaders in Pumping Solutions

If you are still unsure as to whether the submersible pump you select is suitable for the intended application, consult with the leaders in pump manufacturing, Prochem Chemical Pump Manufacturers. As leaders in pump design and manufacture, we have been supplying South Africa with pumping equipment for over 30 years. Although our principal range lies in chemical handling pumps, our submersible range of Ebara Pumps are designed to handle a number of applications, including the domestic and agricultural sectors. Contact us to find the right pump solution for your requirements.


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