Peristaltic pumps are a type of positive displacement pump used for pumping a variety of fluids. The fluid is contained within a flexible hose or tube fitted inside the pump casing. The actual pumping principle, called peristalsis, is based on alternating compression and relaxation of the hose or tube, drawing content in and propelling product away from the pump.
A rotating shoe or roller passes along the length of the hose or tube creating a temporary seal between the suction and discharge sides of the pump. As the pump’s rotor turns this sealing pressure moves along the tube or hose forcing product to move away from the pump and into the discharge line. Where the pressure has been released the hose or tube recovers creating a vacuum, which draws the product into the suction side of the pump, the priming mechanism.
Combining these suction and discharge principles results in a powerful self-priming positive displacement action.
- FLOWRATE - pump tube size: 3mm ID x 5mm OD 19~100 mL/min ;
- POWERFUL - Suitable for viscous, non-viscous liquid
- EASY USE - The pump head designed for easy disassembly, easy to clean and maintain.
- CHANGEABLE FLOW DIRECTION - flow direction can be controlled by the positive and negative connection.
- PORTABLE FOR WIDE USE - has been widely used in the field of experimental, biochemical analysis, pharmaceuticals, fine chemicals, biotechnology, pharmaceutical, products, ceramics, water treatment, environmental protection, etc.
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12V Peristaltic Liquid Dosing Pump Tutorial: Arduino Control, PWM Speed, Direction Reversal, and Accurate mL Dosing
This tutorial is a detailed, practical guide to using the 12V Peristaltic Liquid Dosing Pump (Leobot Product #4274) with Arduino. You will learn how peristaltic pumps work, how to wire and drive the 12V motor safely (you cannot power it from Arduino pins), how to control speed with PWM, how to reverse flow direction, and how to calibrate the pump so you can dispense accurate volumes in mL.
