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The peristaltic tubing sizes are rather arbitrary and are labeled by numbers: 13, 14, 16, 17, and 18 in increasing order of size.
The table below gives you an idea of the flow rates that can be achieved by a peristaltic pump for different tubing sizes.
For 100 rpm pumps
Tubing Number | 13 | 14 | 16 | 17 | 18 |
|---|---|---|---|---|---|
Tubing Size(ID) | 0.8 mm | 1.6 mm | 3 mm | 6.3 mm | 8 mm |
Pump Speed (rpm) | ~2-100 | ~2-100 | ~2-100 | ~2-100 | ~2-100 |
Flow Rate (mL/min) | 0.1-6.0 | 0.3-21.0 | 1.3-80.0 | 4-280 | 6-380 |
For 600 rpm pumps
Tubing Number | 13 | 14 | 16 | 17 | 18 |
|---|---|---|---|---|---|
Tubing Size(ID) | 0.8 mm | 1.6 mm | 3 mm | 6.3 mm | 8 mm |
Pump Speed (rpm) | ~6-100 | ~6-100 | ~6-100 | ~6-100 | ~6-100 |
Flow Rate (mL/min) | 0.36-36.0 | 1.3-130.0 | 4.8-480 | 17-1700 | 23-2300 |
From these chartsFrom this chart, you can easily calculate a pump speed given a tubing number and flowrate. At the appropriate tubing number, divide the given flowrate by the maximum flowrate 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.
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