Aseptic diaphragm valves are frequently used to control sterile applications. However, until now small volumes could only be controlled with an inadequate level of accuracy, or not at all. GEMÜ has developed the GEMÜ 567 valve in order to solve this problem.
The GEMÜ 567 is a 2/2-way globe valve with a regulating needle or regulating cone for high control accuracy and precise dosing. The valve seat on both versions is sealed using a soft-seated seal. The actuator is separated from the media-wetted area by an FDA-compliant PTFE diaphragm. This ensures a permanent, temperature-resistant seal and thus meets the high requirements of the pharmaceutical and food industries. Compared with bellows valves, cleaning the valve is significantly improved by the hygienic and minimal deadleg design. It is likewise possible to clean and sterilize the valve using a CIP or SIP procedure.
The valve is also available with an integrated bypass so that the flow velocities required for the rest of the system can be achieved during the cleaning process. All surfaces which come into contact with the product are precision-turned or polished.