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hydraulic valve actuator / quarter-turn / double-acting / rack-and-pinion
RH Rotork plc



  • Type:


  • Movement:


  • Technology:

    double-acting, rack-and-pinion, spring-return

  • Other characteristics:

    ATEX, rugged, anti-corrosion

  • Torque:

    Max.: 3,400 Nm (2,508

    Min.: 0 Nm (0


Rack and pinion actuators often offer the most economical solution for quarter-turn valves that have a fairly constant torque requirement throughout the stroke.

RH (hydraulic) actuators are available in five body sizes to produce torque output up to 3,400 Nm (30,000 at operating pressures up to 250 bar (3,600 psi). They are available in either double-acting or spring-return configurations.

Heavy-duty cast iron bodies
Electroless nickel-plated cylinders for corrosion resistance
Valve mounting dimensions per ISO 5211 DIN 3337
Complies with EN60529 (1991) + (A1:2000) for IP67M
Certified suitable for use in SIL3 as a single device in accordance with IEC 61508
Actuators certified to ATEX 2014/34/EU and PED 97/23/EC

Other Rotork plc products

Fluid Power Actuators