Duplex II General Description

The Duplex System allows for the automatic control and operation of up to two Eclipse actuators. During an emergency closure, the Duplex Model II will close up to 2 Eclipse actuators automatically and sequentially. The Duplex Model II meets 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 – Approx. 3/4 sec!
  • LED System Information Display Allows Multiple Remote Switches
  • Fault Error Diagnostic System
  • Battery Operated (3 days w/AC failure)
  • 2 Levels of Torque: Emergency – 50 ft. lbs. Test – 30 ft. lbs.
  • Fits Standard Valve Configurations
  • Operator can Open / Close valve manually
  • Microprocessor Controlled
  • Entire System NEMA-4X
  • 3-Way Over Torque Protection
  • 3 Year Warranty

Duplex II 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)


Duplex II 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.