Description
The Siemens 331-4511 is a pneumatic actuator with a 3” stroke length and an extended shaft to meet the needs of a wide range of HVAC applications. Functional at the same time. Working as a pneumatic actuator the Siemens 331-4511 utilizes air pressure to control the rotation of its shaft. It functions in the spring range of 5-10 psi for effectively controlling dampers, valves, and other components of HVAC systems. As a result of the extended shaft design, the actuator can be mounted in more than one way.
