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Keystone Pneumatic Actuators MRP and MRA quarter-turn valves Actuators

A comprehensive range of pneumatic actuators, providing compact, reliable and economical powered operation for all types of quarter-turn valves.

Features & Benefits:

  • Direct mounting to all Keystone Butterfly Valves.
  • Double Rack & Pinion design nullifies sideloads on the pinion shaft, minimizing bearing wear and extending life.
  • Double Acting or Spring Return models utilize the same compact body design.
  • Aluminum body, hard anodized externally and internally, for corrosion and wear resistance.
  • Electrostatic powder coating (ESPC) finish, external on body, internal and external on end caps, protects against corrosive environments.
  • Adjustable travel stops.
  • Safe end cover bolting requiring no special tools.
  • Anti-blowout drive pinion.
  • Over travel adjustment (at each end) +5°.
  • Under travel adjustment (at each end) -10°.
  • Easy field conversion between DA and SR models.
  • Technical Data 
    Torque output range: 
    Double Acting 238 - 18180 lbs in 
    Spring Return 132 - 12515 lbs in 

    Operating medium: Air (dry or lubricated) 

    Travel adjustment: 
    Over travel (at each end) +5° 
    Under travel (at each end) -10° 
    Increased under travel is available, on request. 

    Temperature Range: -20°F to 210°F 

    Air Supply Pressure: 120 psi maximum 

    Mounting Specifications Actuator to valve: Keystone standard Accessories: NAMUR VDI/VDE 3845 or Keystone standard

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