Improved two-stage actuator for diaphragm valves
The revised 9658 two-stage actuator (photo) has smaller dimensions and is 25% lighter than its predecessor. It is also easier to clean since the actuator housing is now welded. For diaphragm valves with two-stage actuators, a continuous series of nominal size DN 10 to DN 65 (diaphragm size 10 to 50) is available. These pneumatically operated two-stage actuators feature a stainless-steel actuator housing, along with two pistons that operate independently of one another and can be actuated separately. They can perform either a full stroke or a variably adjustable partial stroke. This makes these two-stage actuators suitable for filling applications that require rapid open/close cycles and precise metering. — GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG, Ingelfingen-Criesbach, Germany