High performance pneumatic actuators
June 2005
Pneumatics & Hydraulics
PremiAir pneumatic actuators from Tyco Valves & Controls have been engineered to provide reliable and economical operation for all types of quarter turn valves - in demanding process environments. One of the primary causes of performance deterioration in pneumatic actuators is internal corrosion. To combat this, the lightweight aluminium body of each PremiAir is hard anodised both inside and out. For extra durability and resistance to environmental corrosion, PremiAir actuators are also coated with an electrostatic powder coating. If the application is hygienic or highly corrosive, such as caustic wash down areas or saline atmospheres, the PremiAir can be specified with an optional special nickel protection finish both internally and externally.
Available in double acting or spring return models, the PremiAir compact body design is available in one standard size for both configurations. Suitable for use with all quarter turn valves, the actuator can be fitted either with a bracket and detachable mounting plate or directly onto the valve, in accordance with ISO 5211. This design feature combined with the industry preferred square/star output drive allows direct interchangeability with other actuator brands.
The double rack and pinion design delivers a reliable, linear torque output of between 27-2054 Nm for double acting configurations and between 15 and 1414 Nm for spring return models. PremiAir's features also include adjustable travel stops on all models, for precise travel setting in either direction. Over-travel adjustment (at each end) is ±5° and under-travel adjustment (at each end) ±10°, with increased under-travel available on request. Operating temperatures extend from -30 to +90°C.
Tyco Valves & Controls manufactures a wide range of control accessories that are compatible with the modular design of PremiAir actuators. A comprehensive selection of solenoid valves is available, with specifications including weatherproof rating IP65, explosion proof to E Ex m II T and E Ex ed IIC T5 and intrinsically safe to E Exia IIC T6.
For integration into - and control by - a network, the PremiAir can be connected to the AVID range of position monitoring equipment, which includes analogue and smart positioners. The AVID range facilitates communication with AS Interface, DeviceNet, Fieldbus Foundation and Profibus network protocols. PremiAir actuators are available from Tyco Valves & Controls.
For more information contact Tyco Valves & Controls Distribution, 011 454 4801, [email protected], www.tyco-valves.com
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