Damper Actuators, Pneumatics & Fittings
331-2904
Damper Actuator, Pneu No 4, 4″ Stroke, 3-7psi, Integral Pivot Mount, UL Rec F/S
$394.15
This 331 Number 4 Pneumatic Damper Actuator is UL recognized for fire and smoke applications and 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 7 psi, integral pivot mounting and a replaceable diaphragm. This actuator has an air connection of 1/8″ NPT internal threads with a dual barb elbow fitting for 1/4″ OD tubing.
