In doing so, bar-agturn 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 focus in terms of appearance and function is on quality and safety
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. Important information is clearly marked for the user and is indelibly laser-engraved on the actuator housing. The flange patterns and air connections are marked this way to ensure unmistakable allocation. The serial number, which the manufacturer can use to track the actuator at any time, is also laser-engraved. 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.
Variable selection of conventional accessories
The standardized VDI/VDE 3845 interface allows all positioners and end switch boxes widely available on the market to be attached. The position indicator is already part of the product and equipped with variable clips to display the valve position, thus reducing costs for the user. The high-profile solenoid valve interface is in an easily reachable location and optimized for the attachment of pilot valves. Another benefit of this positioning is that it does not interfere with the valve flange.
Well-conceived details simplify the attachment of valves
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. The end-position adjustment for precise valve positioning is easily reachable on the opposing side of the solenoid valve connection and simplifies the process. Optimal valve adjustment is achieved by setting the end positions in the 0° and 90° position from +5° to -5°.
Consistent spring values for simple actuator configuration
The safety springs are designed for a homogeneous relationship between pneumatic force and spring load and are easy to install and remove safely. A defined number of springs is assigned to each control pressure and simplifies actuator selection via the torques.
Customer support for the all-round carefree package
Customers receive assistance from specialists at bar GmbH at any time during the planning and commissioning of a process plant. Technicians from Design and Technical Support are the contacts, starting from an analysis of the requirements for the shut-off devices, classification of the medium to installation and operating conditions. The selection of the suitable parts and components as well as the adjustment of the automated valve leads to highly individual, customer-specific system solutions which are tailored to the plant conditions at hand.