MV-1100/1500 Series of Valve Actuators The MV-1100 and MV-1500 Series are linear, bi-directional actuators, designed to meet the exacting requirements for closed-loop modulating positioning control. They can be applied to a variety of sliding stem valves to provide remote valve positioning for control of gases, steam or other liquids in various process control applications. All MV-1100 and MV-1500 Series actuators are also available with an internal amplifier (AC voltage only). These amplifiers are all full featured ac switching devices designed to work seamlessly with the actuator for closed-loop control. Features permanently lubricated for any position mounting amplifier supplies current to hold last position and prevent backdriving, up to thrust rating under power AC or DC input power versions 4 to 20 mA, loop-powered, feedback signal field selectable adjustments for: speed, deadband, zero and span, command signal type, standard or reverse acting wide ambient temperature range full one year warranty