Siemens
Item ID: 332-3011
This 331 Number 6 Pneumatic Damper Actuator with integral pivot and pivot post is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC and fire/smoke dampers.
This actuator has a nominal spring range of 8 to 13 psi, has a replaceable diaphragm and a 1/8" NPT female air connection.
Also included is an extended shaft mounting kit with parts for frame mounting..