RH Range Rack and Pinion Hydraulic Actuators A varied range of rack and pinion actuators that offer the most economical solution for quarterturn valves that have a fairly constant torque requirement throughout the stroke. RH rack and pinion actuators are engineered to operate ball, butterfly, plug and other quarter-turn valves for either on/off or modulating service. The heavy-duty construction and compact design make this product ideal for skid manufacturers as well as offshore and process applications which require robust yet space saving valve actuation solutions. These actuators are also suitable for applications requiring medium depth submersion. Heavy duty rack and pinion hydraulic actuators Electroless nickel-plated cylinders Totally enclosed weatherproof housing Precision machined alloy steel rack and pinion mechanism Double-acting and spring-return versions available

RH Range Hydraulic Rack and Pinion Valve Actuators Every Rotork actuator is built to provide long and efficient service with a minimum of maintenance. Double-acting and spring-return versions The design, engineering and materials used in their construction ensure optimum performance even in the harshest environments. “Rack guide” transversal thrust support by means of two independent brass bushings Carbon steel or spheroidal graphite cast iron electroless nickel-plated cylinders fitted with mechanical end stop to ensure accurate angular stroke adjustment +/- 5° Carbon steel piston with dynamic...

RH Range Hydraulic Rack and Pinion Valve Actuators 2 Ductile Iron Alloy Steel Alloy Steel Stainless Steel Hydraulic cylinder Cast Iron/Carbon Steel Carbon Steel Piston Seal Wear Ring Stop Bolt Alloy Steel Spring Canister Carbon Steel Alloy Steel Carbon Steel Carbon Steel Spring Steel Carbon Steel Stop Bolt Alloy Steel

RH Range High Torque Double-Acting Actuators RH extreme duty actuators are designed for some of the most challenging valve actuation applications on earth. They are an excellent choice for the demanding requirements and adverse conditions found in applications for mining and offshore. The range has several features that set it apart from competing designs. Maximum Operating Pressure (MOP) Low pressure cylinders: High pressure cylinders: Low pressure cylinder MOP is based upon a design safety factor of 1.5. High pressure cylinder MOP is based upon design safety factor per ASME VIII Div.1. Alternative...

RH Range High Torque Double-Acting Actuators 9 3 1 6 Carbon Steel Alloy Steel Alloy Steel Stainless Steel Hydraulic cylinder Carbon Steel Alloy Steel Carbon Steel Carbon Steel Carbon Steel Piston Seal Wear Ring Stop Bolt Alloy Steel

RH Range Model Number Designation Example Model Number ACTUATOR TYPE SUPPLY TYPE CENTRE BODY SIZE CYLINDER SIZE TEMPERATURE F G H L Standard High Low Extreme low CYLINDER / SPRING CANISTER CONFIGURATION C0 ÷ C9 = Spring-Return Fail Close - Spring set # 0-9 O0 ÷ O9 = Spring-Return Fail Open - Spring set # 0-9 D2 = Double-Acting - Two Cylinders D4 = Double-Acting - Four Cylinders (only with body sizes 090, 105, 125, 145, 155, 185, 225, 250, 280) MANUAL OVERRIDE TYPE RH Range Hydraulic Rack and Pinion Valve Actuators

RH Range Options Manual Override A dependable manual override facility is an important part many valve/actuator applications. Rotork has a variety of override options available to meet virtually any requirement. Available override options for rack and pinion actuators with up to 3,400 Nm torque output include hydraulic override solutions as a standard. Contact factory for gear reducer solutions. Complete Control Systems Control component packages are a part of any actuator/valve installation. Rotork has extensive experience in the design and assembly of all types of fluid power control systems...

RH Range Rack and Pinion Hydraulic Actuators A full listing of the Rotork sales and service network is available on our website. Corporate Headquarters Rotork plc tel +44 (0)1225 733200 fax +44 (0)1225 333467 email [email protected] Electric Actuators and Control Systems Fluid Power Actuators and Control Systems Gearboxes and Gear Operators Precision Control and Indication Projects, Services and Retrofit As part of a process of on-going product development, Rotork reserves the right to amend and change specifications without prior notice. Published data may be subject to change. For the very latest...