429 | SIEMENS - BUILDING TECHNOLOGIES diversitech.com | 800.995.2222 ©2022 DiversiTech Corporation. All Rights Reserved DAMPER ACTUATORS No. 3 Pneumatic Damper Actuator The No. 3 Pneumatic Damper Actuator is a compact, totally enclosed, rolling diaphragm type actuator designed for modulating or two-position actuation of dampers or air valves. Features • All metal body construction • Totally enclosed to protect internal parts • Variety of spring ranges for sequencing • Fixed or pivot mounting models • Pivot mounting for extended shaft • Positioning relay (optional) • Variety of mounting/linkage kits for special application • Threaded shaft for easy mounting to accessory thread Application Typical applications are for control of mixing box dampers or air valves, and damper control for unit ventilators, unit conditioners and other HVAC applications. These compact, totally enclosed actuators are easily installed either directly within the mixing box or unit enclosure, or externally, as required for each application. Item ID Description 331-4551 No.3 PNE ACT.5-10PSI 2 3/4"STRK 331-4811 Damper Actuator, Pneu No 3, 2-3/8" Stroke, 8-13psi, Integral Pivot, Pivot Post 331-4821 No. 3 Pneumatic Actuator, 8-13 psi, Extended Shaft Mounting, 2-3/4-inch Stroke 331-4825 Pneumatic Controls AP331 #3 ACT 8-13PSI,2 3/4"STR 331-4827 Pneumatic Controls AP331 #3 ACT.8-13,2 3/4"RUSKIN No. 4 Pneumatic Damper Actuator The Powers Controls No. 4 Pneumatic Damper Actuator is a totally enclosed pneumatic piston type actuator designed to operate dampers for ventilating systems, mixing box control, and other applications requiring a large, effective diaphragm area and long stroke. Features • All metal body construction • Replaceable, ozone-resistant, EPDM rubber, rolling diaphragm • Pivot mounting for extended shaft or frame mounting • Direct front mounting • (Optional) Positioning relay • (Optional) Forward travel stops • Adjustable hesitation point (hesitation actuator only) • Fixed bracket mounting Application The No. 4 Pneumatic Damper Actuator is recommended for control of outdoor, return air, exhaust, face and bypass, fan discharge, and static pressure control dampers, as well as specialized dampers and air valves found in terminal units such as unit ventilators and mixing boxes. Item ID Description 331-2904 Damper Actuator, Pneu No 4, 4" Stroke, 3-7psi, Integral Pivot Mount, UL Rec F/S 331-2905 Damper Actuator, Pneumatic, Number 4, 4" Stroke, 3-7 psi, Integral Pivot Mount 331-2906 Damper Actuator, Pneu No 4, 4" Stroke, 5-10psi, Integral Pivot Mt, UL Rec F/S 331-2961 Damper Actuator, Pneu No 4, 4" Stroke, 8-13psi, Integral Pivot Mount, UL Rec F/S 331-2968 Damper Actuator, Pneu No 4, 4" Stroke, 8-13psi, Integral Pivot Mount, Clevis 331-2973 Damper Actuator, Pneu No 4, 4" Stroke, 5-10psi, Pivot, Univ Mt Kit, UL Rec F/S Item ID Description 331-3001 Damper Actuator, Pneu No 4, 4" Stroke, 3-13psi, Integral Pivot, Pivot Post 331-3018 Damper Actuator, Pneu No 4, 4" Stroke, 3-13psi, Fixed Mount Plate 332-2973 Damper Actuator, Pneu No 4, 4" Stroke, 5-10psi, Integral Pivot, Univ Mt, Pos Relay 333-071 Replacement Diaphragm, No. 4 Damper Act, Sheet Metal Cylinder Housing, 5 pkg 333-072 Replacement Diaphragm, No. 4 Damper Act w/ Discontinued Cast Alum Hsg 5pk 331-2998 4” Pneumatic Actuator with Clevis and Crank, 8-13 psi
DiversiTech_Packard_2022_Catalog
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