Gemini General Description

The Gemini System features two Terminator actuators and the Mercury System includes one actuator. The Gemini controller allows for operation of up to 2 Terminator actuators sequentially and is designed for installation in conjunction with automatic switch over systems that employ two chlorine containers to provide an uninterrupted flow of gas. The Gemini and Mercury Models meet all Fire Code requirements.

Remote Operation Automatically shut-off a leak without having to enter a toxic environment by means of remote switches: gas detector, kill or panic button, SCADA system, fire or seismic alarm, etc..


  • Electronically Closes Valves
  • LED System Information Display Allows Multiple Remote Switches
  • Battery Operated (7 days w/AC failure)
  • Closing Torque: 30-40 ft-lbs
  • Fits Standard Valve Configurations
  • Operator can Open / Close valve manually
  • Microprocessor Controlled
  • Entire System NEMA-4X
  • 3 Year Warranty

Gemini Technical Specs

Controller Model :6601.03, 6602.03, 6603.03, 6604.03, 6605.03, 6606.03
Channels :Up to 2 Actuators
Enclosure Dimensions :14.5 x 16.5 x 8.3 inches (356 x 420 x 210 mm)
Enclosure Weight :18 lbs (8 kgs)
Battery Weight :7 lbs (3.2 kgs)
Enclosure Rating :NEMA 4X / IP67
Temperature Range :-10 C to 50 C
Display :2 line 40 charachter backlit OLED
Power Requirement :120 – 240 VAC
Power Use :100 watts
Current :0.9A @ 120 VAC
Relay Contact Rating :0.2A @ 24 VDC
Charger :Constant voltage trickle charge
Battery Backup :3 days, 8.5 amp hour
Emergency Stop Button :Normally Open contact (Optional N.C. Contact)
Warranty :3 Years
Optional Relay Contacts :(3) per relay card, 5A @ 120 VAC ea.
Optional SCADA Output :RS-232 output of 9 system diagnostics
Optional Second Battery :3 days, 8.5 amp hour (closes 2 valves at a time)
Accessories :Actuator storage rack (1 per actuator)

Gemini Options

  • RS232 Serial Port Output to SCADA
  • Fault Error Output Relay
  • DT-DP Relay (Latching available)
  • Annual Preventative Maintenance Program

Eclipse Actuator

The Eclipse™ emergency valve actuator automatically closes chlorine or sulfur dioxide ton container and 150 lb cylinder valves in the event of a system leak or emergency.

Junction Box

Junction Box for extending actuator cable lengths. NEMA 4X/UL listed, color coded screw terminal connectors for joining actuator cables to conduit wires.

Chlorine Ton Container Adapter

Chlorine Ton Container Adapter. Allows Eclipse and Terminator valve actuators to be used with vacuum regulators that require adapters.

VR Extension

VR Extension for Direct Mount Vacuum Regulators. Allows both the Eclipse actuator and the vacuum regulator to be mount-ed to the same ton container valve.