The Terminator Actuator from Halogen Valve Systems is a safety device that automatically closes a chlorine cylinder or ton container valve in case of a leak or emergency. It is easily installed on either cylinders or ton containers that use standard USA-style chlorine valves. It is a DC-powered impact device that provides 40 to 50 ft-lbs of emergency closing torque as recommended by the Chlorine Institute. It uses the Gemini controller to provide power and logic to the actuator. The Gemini is a two-channel controller with an integral 12-volt battery that provides main and backup power. It provides a remote activation input for panic switches, gas detectors or activation via SCADA, and also offers a relay output that indicates when an emergency close operation has been performed. 949-261-5030; www.halogenvalve.com