Siemens Building Technology 331-2857 Damper Actuator 4″ Stroke W/Clevis 3-8 PSI NO.6

The Siemens 331-2857 Damper Actuator (No. 6) is pneumatic actuator for control of dampers in HVAC systems. It features a spring range of 3, 8 psi for fine control over damper locations, to optimize airflow in heating, ventilation & air conditioning equipment. With a 4” stroke and able to run in temperatures from -20°F to 160°F this actuator can successfully perform a number of environments. This actuator is also widely used on large commercial HVAC systems to adjust airflow and improve energy efficiency and keep indoor climates stable. The Siemens 331-2857 assures proper damper control and lowers energy consumption in system efficiency to lower operational expenses and create a more comfortable indoor environment.