A control valve consists of valve, actuator and positioner. To achieve a good control performance each component must be of high quality and properly built together.

To obtain a valve function with good performance, all accessories must be properly selected. At SOMAS we know through many years of experience how to combine the accessories with our range of products, to fulfill the customers' specifications.

SOMAS pneumatic actuators are designed to meet the demands of the process industry where reliability and control function are concerned. The actuators are basically designed for the SOMAS range of valves, but can also be used for other valves with quarter turn operation.

The new actuator type A is equipped with a friction coupling. That eliminates the backlash between actuator and valve. The transfer of torque with zero-backlash offers the ideal opportunity for precise control and lays the foundation for totally reliable troubleshooting.

SOMAS actuators can also be completed with a number of accessories to obtain the various functions.
The most common is the SOMAS positioner type SP405 / SPE405 and TZID-C for control valves. Solenoid valves and limit switches are available for on/off valves are.