Belimo Sy2-230-3-t Rotary Actuators For Butterfly Valves are available from our company in a wide range. They were made to work with butterfly valves. It is a powerful actuator that offers accurate control over the valve position and can run at up to 95 seconds per second for rotations of 90 degrees. Belimo Sy2-230-3-t Rotary Actuators For Butterfly Valves are used to stop overheating-related damage. In the event of a power outage, this valve enables the valve to be operated manually. These butterfly valves are simple to install and maintain, and they are made to last for a long time with little upkeep.