Siemens 331-2961 Damper Actuator Pneumatic No.4 8-13 PSI Pivot

Siemens 331-2961 Damper Actuator Pneumatic No. 4 is a effective parametric actuator which can be used for exact control of HVAC systems. A pneumatically operated damper actuator is being used that rigs with a spring range 8-13 PSI to damper positioning. This has a 4" stroke allowing it to make the airflow adjustment well and mounted the pivot mechanism for reliable working. No.4 Pneumatic Damper Actuator is designed for air damper control in commercial and industrial HVAC systems. Its pneumatic operation which continually smooths out, reliably damper adjustments, it helps to automatically manage the air flow and save energy. This actuator maintains optimal damper positions such that balanced air distribution and overall system performance.