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Peristaltic pumps are positive displacement pumps utilizing flexible tubes full of liquid and a rotor. Positive displacement means that a set a amount of flow rate will be delivered to the system regardless of the pressure on either side. As the rotor turns, it squeezes the flexible tubing, forcing a specific amount of fluid out of the pump.
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From these charts, you can easily calculate a pump speed given a tubing number and flowrateflow rate. At the appropriate tubing number, divide the given flowrate flow rate by the maximum flowrate flow rate and multiple this quantity by 100. This simple calculation will give you the speed of the pump in rpms given a tubing size and flow rate.
What tubing size and pump speed would you use to acquire a flowrate flow rate of 500 mL/min? Keep in mind that you can use more than one pump head...
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