What is the difference between a TM diaphragm and a Grade 17 diaphragm?
The “TM” PTFE diaphragm provides greater dimensional stability, longer flex life, lower porosity, lower permeability, superior thermo-mechanical performance and is tougher and more durable. The “Grade 17” EPDM is comprised of higher molecular weight terpolymer elastomer, which provides increased mechanical properties while reducing compression set. In addition, the diaphragm is peroxide cured rather than sulfur cured enhancing the biocompatibility of the material. For additional features and benefits of “TM” and “Grade 17” diaphragms see the Diaphragm Brochure.
