Description
THE D-3153 PNEUMATIC ACTUATOR IS A MULTIPURPOSE POSITIONING DEVICE USED PRIMARILY FOR OPERATING VENTILATING DAMPERS IN RESPONSE TO THE OUTPUT SIGNALS OF A PNEUMATIC CONTROLLER OR ELECTRO-PNEUMATIC TRANSDUCER. THE D-3153 PNEUMATIC ACTUATOR IS USED WITH DAMPERS UP TO A MAXIMUM AREA OF 16 FT2 (1.5 M2) FOR PROPORTIONAL VOLUME CONTROL, AND 25 FT2 (2.3 M2) FOR 2-POSITION ACTUATION (PROVIDED THAT THE TORQUE REQUIREMENTS ARE COMPATIBLE WITH THE SPECIFIC APPLICATION). THE D-3153 PNEUMATIC ACTUATOR COMPONENT IS RECOGNIZED BY UNDERWRITERS LABORATORIES INC.® (UL) FOR USE ON UL CLASSIFIED 555/555S SMOKE AND COMBINATION FIRE/SMOKE DAMPERS WHICH HAVE BEEN TESTED AND APPROVED TO A DEGRADATION TEMPERATURE OF 250°F (121°C).
