Peristaltic pump with high stability accuracy is limited

The size of a peristaltic pump "pillow" is generally constant (except when pumping a particularly viscous fluid). Comparing pumps with the same diameter of the rotor, a pump that produces a larger "pillow" volume has a larger volume of fluid delivered per revolution of the rotor, but the resulting pulsation is also greater. This is similar to the case of a membrane valve. Pumps that produce smaller "pillow" volumes have a smaller volume of fluid delivered per revolution of the rotor; moreover, a small, "pillow" formed quickly and continuously provides a smoother flow of fluid. This works in a similar way to a gear pump. The peristaltic pump has high precision: repeatability and high stability.

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