Five Good Reasons to Choose a Randolph Peristaltic Pump
Five Good Reasons to Choose a Randolph Peristaltic Pump
Peristaltic pumps work by compressing a flexible tubing or hose with rollers or cams against a rigid housing. As the tubing recovers its original shape, it creates a vacuum which lifts a fluid or gas into the tubing. A positive displacement pump, it moves the fluid or gas in discrete slugs between the rollers. There are many reasons to choose Randolph pump. Listed below are the top five reasons:
- Isolating fluid from housing and moving parts:
- The Randolph pump is the pump “That Never Gets Wet” because the flexible tubing is a conduit for the fluid. In other words, the tube isolates the fluid from the housing and the moving elements, reducing issues of cross contamination and maintenance issues that are common with other wetted pump systems. The fluid isolation makes peristaltic pumps a natural choice for laboratory, food, chemical feed, or medical applications.
- Positive displacement pumps:
- Randolph peristaltic pumps are positive displacement pumps. They do not need to be primed.
- Unlike diaphragm pumps, peristaltic pumps are not affected by fluids which off gas. For example, in applications such as pumping a sodium hypochlorite solution, a Randolph pump will operate even when there is some dissociation of gas from the solution. Diaphragm pumps have issues with off gassing known as vapor lock. Peristaltic pumps, because of their design, does not encounter issues with vapor locking.
- Peristaltic pumps are an excellent choice for shear sensitive fluids:
- The fluid being pumped will move in the tubing, between the rolling elements, in discreet slugs. They are an excellent choice for fluids that are shear sensitive. Examples of applications where peristaltic pumps are used with shear sensitive fluids include food (milk, cheese, etc), pharmaceutical, and in some cases medical applications (blood and cellular transfer tubes, etc).
- Randolph peristaltic pumps are good choices for slurries:
- Because a peristaltic pump uses a flexible conduit as the channel through which fluids move, they are excellent choices for slurries, colloidal suspensions, or fluids with solids in them. The tubing insulates the housing and rotor from the fluid and reduces wear and tear to the moving components in the pump.
- Peristaltic pumps are good choices for metering pumps
- Generally, a peristaltic pump will deliver the same amount of fluid or gas every revolution. This makes them an excellent choice for metering applications. Peristaltic pumps have found a home in many applications such as chemical feed, filling, or sampling because their unique design is better suited to the application.
Please call our sales office, 1-800-531-5263, or email us at sales@randolphaustin.com for help with possible applications.