DISCONTINUED MODEL, CONTACT TECHNICAL SUPPORT FOR REPLACEMENT OPTIONS
Damper Actuator, Pneu No 4, 3″ Stroke, Unit Ventilator, 8-13psi
No. 4 Pneumatic Damper Actuator, 3″ stroke, provides gradual or positive actuation of HVAC and fire/smoke dampers. Nominal spring range of 8 to 13 psi; non-pivot mounting bracket; replaceable diaphragm; Air connection of 1/8″ NPT female, dual barb elbow fitting for 1/4″ OD tubing.