What Are Systems Curves In Water Pumps?

System curves are calculations that are meant to anticipate how water flows through the pump or a hose, calculating and designing system curves is an important part of manufacturing well pumps. The best manufacturers, Grundfos provide high quality and extremely efficient Grundfos water pumps in Hungary because the firm puts plenty of emphasis and attention on calculating system curves. This is because system curves play an important in pump selection. When it comes to calculating system curves, it is very important to calculate the following components:

• Pressure required to transport water to furthest end possible.
• Fluid required when designing the pump.

The first stage in calculating the system curves for Grundfos pumps is by creating the design head, the design head consists of two very important parts, the independent head and the friction head. The independent head refers to the pressure requirements of a pump that are likely to stay the same, regardless of how much water is flowing out of the pump. The Independent head is made up of two different parts, which are the static head and the pressure head. Friction head refers to the loss of pressure (while pumping water) that can happen to friction.

How To Calculate The Systems Curve In A Well Pump

Once the independent head and Friction head have been calculated the next step in calculating the systems curve is to consider the design point. The Design point is the starting flow rate of water from the pump and is usually calculated using computer programs or a spreadsheet. After choosing the design point, the next step in calculating the systems curve for Grundfos pumps is through plotting the independent head, which would be the same or constant regardless of the speed of flow from the water pump.

However, despite the enormous intention invested in finding the correct systems curve for Grundfos water pumps in Hungary, it is possible to have a systems curve on a water pump when it is working, compared to the theory. There are a number of reasons that could distort the results, this could be due to things such as safety factors which can reduce the pressure in well pumps, there are changes in friction coefficient which were not anticipated or there has been a change in the degree of friction within the pumps.