Siemens
Item ID: 331-3011
This 331 Number 6 Pneumatic Damper Actuator with integral pivot and pivot post is a rugged, metal-fabricated device that is UL recognized for use on fire dampers and leakage-rated dampers.
This actuator has a nominal spring range of 3 to 13 psi, is mounted on a plate which allows extended shaft mounting and has a replaceable diaphragm.
This actuator has a 1/8" NPT female air connection and parts for frame mounting..