Keystone EPI 2 Electric Actuator

The EPI2 series are compact, intelligent quarter-turn electric actuators for the accurate control of valves with torques from 35 to 2000 Nm / 308 to 17,700




Units available for -40°F to 158°F [-40°C to 70°C]
for 24 to 48 & 100 to 240 VDC or VAC 1 ph 50/60 hertz , 3 ph from 208-240/380-480/500-575 VAC
Torque output
up to 17,700 lbs-in [2,000 Nm]


  • Separate terminal enclosure isolated from the electronics and motor compartment; only the wiring terminal is exposed during field installation
  • Standard adjustable torque switches, from 50 to 100% of rated torque output (3 steps 50% – 75% – 100%)
    Manual override always engaged
  • Standard protection IP66/68M and NEMA 4/4X/6 enclosure rating with CSA (C-US)
  • Explosion proof protection Ex de IIB T5 Gb – FM
  • Anodized aluminum with epoxy powder coat to help protect unit in most aggressive environments
  • Visual mechanical position indicator for accurate visual reference of valve position
  • Direct mounting or readily adaptable to other quarter-turn valves
  • Permanently lubricated self-locking gear train helps eliminate the need for motor brakes
  • Mechanical travel stops designed to prevent over-travel during hand wheel or motor operation
  • Over temperature motor thermostat
  • Integral speed control independently adjustable in opening and closing directions

    Epicyclical gearing ensures reliable and smooth operation

  • Latched-type output contacts for fully open/ fully close remote indication. Output contacts for monitor and blinker/local selector indication are also available



Long Lasting Butterfly Valves with a Sturdy Reputation

Emerson’s Keystone offer a complete range of butterfly valves from general purpose through to heavy duty and high performance models. With a tradition of more than 70 years, Keystone built its reputation on providing industrial process butterfly valves known for their reliability, long service life, and reduced operating costs. Independent, third-party life-cycle testing has shown that Keystone resilient-seated butterfly valves last 2.5 times longer than competitors' butterfly valves.  

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