Globe valve VARIVENT® N series

pneumatically-operatedshut-offfor water

VARIVENT® N-Valves with bellows made by GEA Tuchenhagen achieve maximum product safety and product quality in sterile process applications. VARIVENT® N-Valves with bellows hermetically and exclude product contamination from the ambient atmosphere. They offer unique design features and the highest quality in process valve technology. The valves can be equipped either with PTFE or stainless-steel bellows. Hygienic, exterior design When developing these valve series, special attention was paid to the hygienic exterior design: The closed lantern and all liquid draining surfaces (without cavities or gaps) - irrespective of the installation position make the valve suitable for easy and safe outside cleaning. Easy handling for service and maintenance Simple and easy on-site service and maintenance are built-in features. Special attention has been given to the easy replacement of the bellows and to changing the pneumatic actuator to the reversed operation mode (spring-to-close / spring-to-open). All applications require a few standard tools only. High quality surfaces High quality surfaces are essential in sterile process applications in order to achieve a safe and reliable process. The VARIVENT® N-Valves product-contact areas have an inside surface finish of Ra < or = 0,8 µm as a standard, (electrolytic polishing is an option) and a bright or fine ground external surface finish. External surfaces in a higher quality are available on request.