331-4821 | No. 3 Pneumatic Actuator, 8-13 psi, Extended Shaft Mounting, 2-3/4-inch Stroke | Siemens

No. 3 Pneumatic Actuator, 8-13 psi, Extended Shaft Mounting, 2-3/4-inch Stroke Actuator Type Pneumatic Pneumatic Model No. 3 Spring Range 8-13 psi Ball Joint Connector NO Clevis NO Mounting Style Extended Shaft Pivot YES Pneumatic Bracket NO Positioning Relay NO Stroke 2-3/4 in Resources Datasheet(Powers Controls No. 3 Pneumatic Damper Technical Instructions)Datasheet(Pneumatic Damper Actuators Submittal Sheet)Datasheet(Powers Controls Maximum Thrust Ratings of Pneumatic Damper TB 181. Technical Bulletin)Assortment / System Descriptions(Powers Pneumatic Controls. Quick Reference Guide) More Info ^^This 331 Number 3 Pneumatic Damper Actuator 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.