Rollers or shoes in a peristaltic pump compress the tube or hose as they rotate, creating a vacuum which draws fluid through the tube. Nothing but the pump tube or hose touches the fluid, eliminating the risk of the pump contaminating the fluid, or the fluid contaminating the pump.
What is the advantage of a peristaltic pump?
One of the greatest advantages of Peristaltic Pumps is the isolation between the pump moving parts and the process media, thereby removing any risk of cross contamination. The pump is easy to clean and to sterilise as the only part of the pump coming into contact with the fluid being pumped is the interior of the tube.
How accurate is a peristaltic pump?
FILL VOLUME ACCURACY
Peristaltic pump accuracy rivals piston pump standards. The typical industry standard for fill volume accuracy is ±0.5%. Peristaltic dispensing pumps meet this requirement for fill volumes as small as 0.5 ml. Below that fill volume, accuracy can be as good as ±1%.