Fluidics FAQs
Here we have provided comprehensive lists of commonly asked questions regarding our fluidics products and related applications. This information is designed to support your inquiries, but if you don’t find the answers you are looking for we encourage you to contact us for further assistance.
Please use the sort buttons in the left navigation to navigate between questions and answers that are specific to our Optical Filters, Optical Imaging Systems, Cameras, Microfluidics, Webstore, and Engineering Partnership.
What are the advantages and disadvantages of Vespel vs. Tefzel vs. PEEK?
The most important issue with these materials is whether the solvents, chemicals, pH, and temperature you are using are compatible with the rotor seal in your valve. For example, Vespel has a pH limitation of 10; Tefzel has a temperature limitation of 50°C. Chemical compatibility is addressed in the Materials and Tools section. In general, the different types of rotor seals will have the same lifetime and wear at about the same rate. Tefzel and PEEK rotor seals will require a slightly higher torque to turn the valve.