Filling valve offers fast and precise filling

Rotary lobe pumps are often used in hygienic and aseptic filling processes but may not deliver the fast and precise filling required by the pharmaceutical industry and other sectors.

The F60 servoDrive filling valve developed by Germany-based valve specialist GEMÜ, is said to allow these filling processes to be made significantly faster and more flexible, while also extending service equipment service life. The servoDrive actuator is designed to deliver high traverse speed, excellent positioning accuracy and fast controllability. The low-loss, brushless and robust servo motors are made from stainless steel, satisfy the requirements of electrical protection class IP69K and can achieve 50-million to 100-million cycle duties, depending on the application.

An accuracy test was performed with the GEMÜ F60 servoDrive for filling with the smallest quantities, with the aim of achieving the accuracy required when filling pharmaceuticals of ±0.5% at a filling weight of 1 g. The test was performed with water and a continuous pressure of 0.3 bar and the results showed that the requisite accuracy was delivered over multiple measurement series. Further tests with various small volumes also confirmed the filling accuracy and a filling cycle time of less than one second could be achieved with all fill volumes.

The GEMÜ F60 servoDrive is designed to allow for faster filling cycles than the rotary lobe pumps that are commonly used. In addition, various filling volumes can be implemented without having to modify the filling plunger. Alongside filling of pharmaceutical products, the GEMÜ F60 servoDrive is also suitable for all filling applications that require accuracy, speed and hygiene, such as foodstuffs or battery and chemical filling.