Limitorque® LQI Compact Fail-Safe Intrusive Quarter-Turn Actuator

The LQI compact spring return fail-safe electric actuators offer superior reliability and performance as well as lower Total Cost of Ownership (TCO). LQIFS actuators are designed to provide fail-safe positioning with a wide range of quarter turn valves and dampers in a broad range of power, oil and gas, chemical, water and general industry applications.

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  • Anti-Condensation Heater prevents freezing and damage caused by humidity
  • Clear mechanical indicator shows valve position at a glance, improving safety
  • Standard control and auxiliary switches simplify automation, reducing setup time
  • Permanently lubricated drive delivers smooth, maintenance free performance, lowering costs
  • Compact, service friendly housing speeds up maintenance, supporting up to 50% duty cycle

Standards

IP67/68
CSA
CSAus
ATEX II 2 GD
IECEx 

Temperature

-30°C to +70°C
(-22°F to +158°F)

Size Range

50 - 360 Nm 
445 - 3,185 in-lb (Weather Proof)
50 - 260 Nm 
445 - 2,300 in-lb (Explosion Proof)

  • 2/3/4 Wire Discrete Controls
  • Mod 4-20 mA - In & Out 
  • 12/24 V AC, 12/24 V DC, 1 PH, 3 PH 50/60 Hz up to 480
  • Modbus Control option
  • Up to C5 corrosion resistance 

Documents & Support

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