Rotork - Model SM-1000 - Process Control Actuators
Torques up to 350 in. lb. (40 Nm). Rotation: 10 degrees to 20 turns. Continuous unrestricted modulating duty. Manual override. Automatic torque limiting. Self-locking drive system to hold in last position and prevent backdriving up to torque rating. AC input power (single phase) or DC input power versions. Temperature range from -40° F to 150° F (-40° C to 65° C).