Siemens #4 Damper Actuator

AP 331 pneumatic damper actuators are terminal devices designed to position air dampers for HVAC systems and fire/smoke dampers. Typical applications are unit ventilators, unit conditioners, outside air dampers or built up sectional dampers. Air connection is 1/8" – 27 NPT female with barb connector for 1/4" OD poly tubing supplied. #4 Damper Actuator 4" 30 8-13 11 sq. in. 12.00