Table of Contents
What does a pump curve tell you?
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 create a system curve?
How to Plot a System Curve
- Step 1 – Set the System Syzer Scale 5 for 2200 GPM at 100 feet of head.
- Step 2 – Without changing the position (or settings) of the System Syzer, read off and record the head at various other flows.
- Step 3 – Plot these values to develop the system curve.
How much air does a diaphragm pump use?
Each full extension of a diaphragm is called a press stroke. The speed of the strokes impacts how much compressed air flow (in cfm) the AODD pump consumes. They typically run at 85 to 95 psi, depending on the application….
| Air Compressor Specifications | |
|---|---|
| Type | Lubricated Rotary Screw |
| Compressor Drive Motor | 60 hp |
How do you calculate pump characteristic curve?
The system characteristic is to be calculated, knowing the geometry of the system, and calculating Friction factors then Pressure Drop (system curve = differential static heads + friction losses). The higher the flow, the higher will be the pressure required.
Being able to read a pump curve is essential when selecting an industrial pump. The pump curve will tell you whether it is able to efficiently perform the required flow rate at a certain pressure, and therefore whether it is suitable for your application.
How does one read a pump curve?
Reading a pump performance curve In the simplest words, pump performance curve is a graph of ‘differential head’ developed by the pump, plotted against the operating flow rate. When more fluid is pushed through the pump, it is generally going to develop less differential head (given the mechanical and power constraints).
What is a pump performance curve?
The pump performance curve describes the relation between the flowrate and the head for the actual pump. Other important information for a proper pump selection is also included – like efficiency curves, NPSHr curve, pump curves for several impeller diameters and different speeds, and power consumption.
What is a centrifugal pump curve?
A centrifugal pump is a very simple device, mechanically. Reading the centrifugal pump curve, however, is a different story. It consists of an impeller that is attached to a shaft which is rotated by a driver, most often by an electric motor.