New versatile pneumatic swivel actuator for automating valves
bar pneumatische Steuerungssysteme
The bar-agturn (photo) is a new pneumatic swivel actuator that covers the full spectrum of torques and swivel angles for shut-off device automation, with 18 different sizes at torques from 2 to 13,040 Nm. The actuators also cover a wide range of application options thanks to actuator versions with different swivel angles. The high-grade powder-coated covers and housing coating made of hard anodized aluminum enable use even under aggressive environmental conditions. Precisely cut piston teeth ensure smoother running, optimal torque and low wear. The flange patterns and air connections are marked this way to ensure unmistakable allocation. The use of the same covers for single and double-acting actuators enables conversion from single to double-acting versions (or vice-versa) without having to replace the caps. A standardized VDI/VDE 3845 interface allows all positioners and end-switch boxes widely available on the market to be attached. The integrated position indicator is equipped with variable clips to display the valve position, thus reducing costs for the user. In most cases, two ISO flange patterns are available for each size of actuator for flexible automation of valves. The pinion, with its octagonal connection, adapts a parallel or diagonal operating-shaft orientation for the valve and ensures space-saving actuator installation. Optimal valve adjustment is achieved by setting the end positions in the 0 and 90 deg position from 5 to –5 deg. Stand D89 (German Pavilion) — bar pneumatische Steuerungssysteme GmbH, Dattenberg, Germany