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Scoresby, Victoria
Tel: +61 3 9759 3300
Fax: +61 3 9759 3301

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Actuators and Operators

Flowserve Australia stock and service a wide range of actuators to suit various applications. The actuators may be designed for manual operation or for more sophisticated actuation using air, gas, oil, water or electricity as a power source.

ELECTRIC ACTUATORS
Electric actuators are used for the automation of industrial valves and are available in designs that cover the requirements of multi turn, linear and ¼ turn valve components. The requirement of this type of actuator is to transmit a torque that is capable of moving the valve component from open to closed and vice versa. Electric actuators are manufactured with motors that are suited to a range of DC & AC voltages and to suit both on/off, positioning and modulating applications. The design can also incorporate “intelligent” communication devices that provide process control functions and diagnostic feedback of the actuators performance. Enclosures are provided that allow the actuator to be utilized in hazardous and potentially explosive environments.
HYDRAULIC ACTUATORS
Hydraulic Actuators operate on a similar principal as a pneumatic actuator but use an incompressible fluid as the actuating media. The hydraulic system is a closed loop and actuator movement is achieved as greater hydraulic fluid pressure is exerted on one side the piston forcing the piston to move within the cylinder. The displaced fluid on the other side of the piston is returned to a reservoir within the closed loop. Hydraulic actuators are available for both linear and rotary applications.
*AUTOMAX*NORBRO*VALTEK*
MANUAL OPERATORS AND GEARBOXES
Manual valves are typically supplied with suitable levers or gearboxes to match the torque requirements of the valve. Gearboxes use manual force to open or close a valve using a crank or hand wheel. Gearboxes and levers are also available with locking mechanism and travel stop adjustments as determined by different valve types.
PNEUMATIC ACTUATORS
Pneumatic Actuators convert energy, in the form of a compressed gas, into energy. This energy is used to induce movement of a valve component from, open to close or vice versa in an on/off application, or partially in a positioning or modulating application. Pneumatic actuators employ the concept of a piston moving within a cylinder converting the movement to either linear or rotary motion. Pneumatic actuators can be of a double acting design, which requires pneumatic pressure to actuate the unit in both directions, or of a single acting design, that requires pneumatic pressure to actuate in one direction and the use of spring components to return the unit to a predetermined “failed” position. Pneumatic actuators can also incorporate “intelligent” communication devices that provide process control functions and comprehensive diagnostic feedback of performance.
SPECIAL ACTUATORS
Other special actuators includes electro-hydraulic actuators, self acting actuators, Sandwich declutchable gearboxes, Spring return handles, digital stepping actuators and Gas over Oil actuators

 
 

 

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