331-2858 | Damper Actuator, Pneumatic, Number 6, 4" Stroke, 3-13 psi, Pivot Mount, Clevis | Siemens

This 331 Number 6 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 3 to 13 psi, is pivot mounted and has a replaceable diaphragm. This actuator has a 1/8" NPT female air connection.