GEARBOXES Quarter-turn Gearboxes

The CENTORK quarter-turn gearboxes are designed for the actuation of valves with a rotary movement of less than one turn, like butterfly, ball and plug valves and dampers.

Can be used for:


  • Electric actuation, by mounting Centork multiturn electric actuator Actuación eléctrica.
  • The gearboxes are supplied with an actuator input mounting flange according to ISO5210 that allows a direct mounting.
  • Manual Actuation, directly though handwheel.
  • Pneumatic or Hydraulic actuation, though the mounting of Centork hydraulic or pneumatic multiturn actuators.

Main characteristics:

  • Torque range from 280 Nm to 350.000 Nm.
  • Gear Ratios from 40:1 to 3500:1
  • Self-Locking movement from 90º to -5º. 180º or multiturn optional.
  • Output flanges and couplings according to ISO 5211.
  • Mechanical end stops easily adjusted.
  • Bronze wheel optional for modulating service.
  • High degree of weatherproof protection IP67 (IP68 optional).
  • High quality corrosion protection.