Siemens 331-2961 DAMPER ACTUATOR, PNEU NO 4, 4" STROKE, 8-13PSI, INTEG PIVOT MOUNT, UL REC F/SSiemens 331 2961 Damper Actuator, Pneu No 4, 4" Stroke, 8 13psi, Integ Pivot Mount, UL Rec F S 331 No. 4 Pneumatic Damper Actuator, UL recognized for fire and smoke applications; rugged, metal fabricated device provides gradual or positive actuation of HVAC and fire smoke dampers. 8 to 13 psi, integral pivot mounting, replaceable diaphragm; Air connection of 1 8" NPT female, dual barb elbow fitting for 1 4" OD tubing. Additional Information Pneumatic
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Siemens 331-2961 DAMPER ACTUATOR, PNEU NO 4, 4" STROKE, 8-13PSI, INTEG PIVOT MOUNT, UL REC F/S