Siemens 331-4814

Damper Actuator, Pneu, No 3, 2 ⅜” Stroke, 8-13 psi, Fixed Brkt Mtg, Clevis

This 331 Number 3 Pneumatic Damper Actuator with clevis is a rugged, metal-fabricated device that provides gradual or positive actuation of HVAC dampers. This actuator has a nominal spring range of 8 to 13 psi, is fixed bracket mounting and has an ozone-resistant rolling rubber diaphragm. This actuator has an air connection of ⅛” NPT female with a straight dual barb fitting for ¼” OD tubing.

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