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[How Peristaltic Pumps Work] Pump fluid by alternately squeezing and releasing the pump's flexible delivery hose. Like squeezing a hose with two fingers, a negative pressure builds up inside the tube as the fingers move, and fluid flows in. The peristaltic pump creates a "pillow" of fluid in the tubing between the two rollers. The size of the pillow depends on the inner diameter of the tubing and the geometry of the rotor. The flow rate depends on the product of the speed of the pump head and the size of the "pillow" and the number of "sleepers" produced per revolution of the rotor. The size of the pillow is generally constant (except when pumping particularly viscous fluids). Pumps with a larger "pillow" volume, when compared to pumps with the same rotor diameter, have larger volumes of fluid delivered per revolution of the rotor but also greater pulsations. This is similar to the case of a membrane valve. A smaller "pillow" volume pump, on the other hand, delivers less volume of fluid per revolution of the rotor; moreover, a small, "pillow" that is formed quickly and continuously produces a smoother fluid flow. This is the case with gear pumps. [Advantages of a peristaltic pump] Equipped with a two-way equal flow delivery capacity; No liquid will be able to cause damage to any part of the pump without air running; A vacuum of up to 98%; No valve, mechanical seal and packing seal, There is no leakage and maintenance of these factors; can easily transport solid, liquid or gas-liquid mixed phase fluid, allowing solids contained in the fluid diameter of tubular elements within 40%; can deliver a variety of abrasive, corrosion, oxygen-sensitive properties Of the material and all kinds of food, etc .; only the hose is the need to replace the parts, the replacement operation is extremely simple; except for the hose, the product delivered is not in contact with any parts. Limitations of Peristaltic Pumps: 1. Pressure Limits: With flexible tubing, the pressure to be applied is limited. 2. The pump produces a pulsed flow during operation. The solution is: Use a Pulse Suppressor A pulse suppressor is a simple positioning Container, working principle is due to the air is more compressible than the liquid, the pulse flow into the container, the gas bag on the liquid sag to absorb pulses and then gently out of the pulse suppressor [Perforated pump applications] chemical industry; mining, metallurgy industry; Paper Industry; Paint and Coatings Industry; Food Industry; Ceramic Industry; Petroleum Industry; Water Treatment Industry; Pump System Selection 1. Select Tube 2. Select Pump Head 3. Select Drive