Siemens 331-3017, Damper Actuator, Pneumatic, Number 4, 4″ Stroke, 8-13psi, Fixed Mounting Plate, Ball Joint Connector.
This 331 Number 4 Pneumatic Damper Actuator with a ball joint connector 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, a fixed mounting plate and a replaceable diaphragm. This actuator has an air connection of 1/8″ NPT female with a dual barb elbow fitting for 1/4″ OD tubing.
Actuator Type: Pneumatic
Pneumatic Model: No. 4
Spring Range: 8-13 psi
Ball Joint Connector: Yes
Clevis: No
Mounting Style: Fixed
Pivot: No
Pneumatic Bracket: No
Positioning Relay: No
Stroke: 4 in
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