Grinnell MODEL:GDA-12 Actuator

complete unit, PNEUMATIC ACTUATOR TYPE DA (DOUBLE ACTING)
TORQUE RANGE 93 TO 40120 IN. LB. (10.5 TO 4543 NM)
TYPE SR (SPRING RETURN) TORQUE RANGE 52 TO 19534 IN. LB. (6 TO 2207 NM), STD. ACTUATORS HAVE 90 DEG. ROTATION, VARIANTS AVAILABLE ARE 0-45-90, 0-90-180 AND 0-180 DEGS.