Today we'll be showing you how to create a Masterflex peristaltic pump system.
A peristaltic pump system consists of three components: 1) a pump head, 2) a pump drive, and 3) tubing
The first step would be to select your pump tubing. The formulation will be chosen based on the fluid being pumped. To determine which formulation will work best for what you are pumping, you can consult the Masterflex Pump Tubing Compatibility Chart and see what rating your fluid will have with the different formulations of tubing offered. Please note that not all fluids will be listed on this chart. If your fluid does not appear on the chart, please feel free to request a free Masterflex tubing test kit. It contains a small smaple of each tubing formulation. You will then need to choose the size which will be based on the flow rate you wish to acheive. The tubing will be sized based on its inner diameter. The larger the flow rate required, the larger the inner diameter needed for the tubing.
The next step is to choose the peristaltic pump head into which the tubing will be placed. There are several options to choose from. The most economic is the standard pump head. It accepts one size of tubing only, but will offer the best repeatability. The Easy Load family of pump heads is the most popular. The Easy Load pump head is the most basic and will allow multiple tubing sizes. The Easy Load II adds the option of adjustable inclusion and increases from three to four rollers. It also has the capability of reducing pulsation by stacking two heads together and off-setting the rollers 45 degrees. The last member of the group is the Easy Load III. This has the same capabilities as the Easy Load pump head, but the tubing enters and exits on the same side. The head can be mounted in any forward positions making this a great option for space limited applications.
The high performance pump head is a good option for achieving a higher flow rate with high peformance precision tubing. For applications that require more than one channel or low flow rates, we offer multi-channel pump heads or multi-cartridge pump heads. These can be used with standard Masterflex tubing or with Masteflex microboard 2-stop tubing to help achieve very low flow rate. The final option offered for the pump head is the PTFE pump heads. You can choose from the PTFE diaphragm pump head, which allows you to attach connectors to the inlet and outlet and use nominal tubing, or you can use the PTFE tubing pump head with specialized tubing sets. Both of these pump heads provide options for applications that require the pump head to be pumping aggressive solutions.
The final step to complete your system is to choose a pump drive. The drive that you choose will be based on what type of control you require. We have fixed-speed drives available, which are the most basic and will go at a set RPM. The next step up is the variable-speed analog control drives. These will provide you with limited control over flow rate and depending on the drive will allow you to change the pump direction. For more precise control, look at one of the digital drives. These specific drives will display the RPM on the screen and allow you to control the flow rate of the tubing. They are also abled to be remotely controlled via a 4 to 20 milliamp or 0 to 5 volt signal or with a contact closure for start stop control.
These digital drives will either give you the option of showing the RPM value or the actual flow rate based on the tubing that you have the drive set for. These also have an option to set a dispense cycle as a volume dispense or a time dispense and allow you to copy the dispense cycle with a time interval between each dispense cycle. They are able to be controlled via a 20 milliamp, 4 to 20 milliamp, or a 0 to 10 volt signal as well as start stop control via contact closure.
The computer compatibile programmable drives will have the same features as the drives previously shown, but included the added feature of being able to be hooked up to a computer and controlled using software. All of the drive features can be controlled using the winlind instrument control software or it can be controlled with other software such as Labview using control codes in the drive instruction manual.
If you're looking for a drive that is suited for dispensing than either the Modular Brushless Digital Dispensing or Modulare Brushless Digital Dispensing Dirve with Wall-Mount Controller options will be suitable. There is an option for a standard dispensing drive and one with an IP56 rating for protection against dust and strong jets of water. The final drive that is available is the Digital Console Process Drive. This has the same functions as the previously described digital drives as well as the ability to be remotely controlled. The added feature of this drive is that it is IP65 rated and suitable for a washdown environment. It has also been rated for 24-hour continuous duty.
Combined, all three of these components will allow you to create a Masterflex peristaltic pump system that will work best for your application.