How do you calculate pump curve?
The Formula for PSI: Feet of Head/2.31 = PSI A basic pump performance curve for centrifugal pumps show it’s performance range. In this curve, head is measured in PSI; flow is measured in gallons per hour.
How do you select pump from pump curve?
Look at the left side of the curve and you will see a label HEAD – FT and numbers starting with 0 and increasing as you move up the chart. This is the pressure that the pump is capable of producing, measured in feet of head (not PSI!) The bottom of the curve is labeled US GPM. This is the flow that the pump produces.
What is pump performance curve?
A pump performance curve indicates how a pump will perform in regards to pressure head and flow. A curve is defined for a specific operating speed (rpm) and a specific inlet/outlet diameter. The curve also shows the shut off head or the head that the pump would generate if operating against a closed valve.
How do you read a pump curve?
Find a point on the pump curve and find the corresponding numbers on the y-axis and the x-axis. You can do this by lining up the point with your index fingers or, if you need a more precise reading, use a ruler and a pencil to mark the exact location of the point along the y-axis and x-axis.
What is operating characteristics curve of pump?
The pump characteristic curves can be defined as ‘the graphical representation of a particular pump’s behavior and performance under different operating conditions’. The operating properties of a pump are established by the geometry and dimensions of the pump’s impeller and casing.
What is the definition of pump head?
The pump head or discharge head of a water pump is a measure of the power of a pump. The greater the pump head, the greater the pressure that the pump can generate.
What is system curve pump?
Pump System Curve. Pump system curve represents the resistance offered by the system ie., the pressure developed by the pump is high enough to overcome the resistance offered by the system. This pressure is also called as “ Total Head ”.