The pneumatically actuated GEMÜ D41 diaphragm valve is designed for use in sterile applications. The diaphragm hermetically separates the actuator from the operating medium. The GEMÜ D41 valve with EasyLock technology is mounted completely without any loose components via a central gearbox. All drive parts (except the sealing and design elements) are made of stainless steel. Normally Closed, Normally Open and Double Acting control functions are available.