Siemens 331-4311 Damper Actuator Pneumatic No.3 W/Extended Shaft 3-7 PSI

Siemens 331-4311 Damper Actuator Pneumatic with Extended Shaft is intended for accurate control of damper movements in the HVAC systems. The engineered pneumatic actuator is capable of operation within a spring range of 3 to 7 PSI to provide reliable performance of managing airflow. The extended shaft allows a variety of mounting options to accept it into each original equipment configuration. This actuator has a stroke length of 2-3/8" and provides accurate positioning of dampers to optimize air distribution and increase system efficiency. Because of its positive attribute of precision to maintain the desired environmental conditions, it is suited for commercial and industrial HVAC systems that require perfect damper control.