Millipore Corp. has announced the launch of aseptic valves for pharmaceutical use now available with PTFE diaphragms. The thermal and chemical durability of PTFE makes it a suitable material for diaphragms in demanding multi-product processes. The new spring closed valve seal for PTFE diaphragms is based on a forced cup spring technology (patent pending), which applies pressure over the diaphragm seat and maintains this pressure over time. Millipore NovAseptic valves are available in sizes 0.5-3in and are used in a wide range of process applications.
