Keystone PremiAir Pneumatic Actuators

  • Mounting to valve either directly or via bracket, using a detachable mounting plate.
  • Conforming to European and International Standard EN ISO 5211, preferred dimensions.
  • Double Rack & Pinion design.
  • Double Acting or Spring Return models utilize the same compact body design.
  • Aluminium body, hard anodized externally and internally, for corrosion and wear resistance.
  • Adjustable travel stops.
  • Safe end cover bolting requiring no special tools.
  • Anti blow-out drive pinion.
  • Air connection plate is detachable and replaceable.
  • Parallel and diagonal, double square (star) drive.
  • Over travel adjustment [at each end) ±5°.
  • Under travel adjustment [at each end)± 10°.
  • Increased under travel is available on request.
  • Easy field conversion between DA and SR models.
  • ATEX certified @112 GD.
  • The aluminium PremiAir Rack & Pinion actuator has all features required to operate both ball and butterfly valves in all general process applications ranging from building services and water applications to (petro-) chemical applications.
  • Its compact design makes is specifically suitable for applications with limited space availability and weight restrictions.