FieldQ actuators are suitable for use in SIL3 applications where a periodic partial stroke test is performed. Where partial stroke testing is not required the FieldQ actuators are suitable for use in SIL2 applications.
Springs
FieldQ springs are designed and manufactured never to break and are protected from corrosion using a Deltatone® coating.
Control Module
Control Modules provide the flexibility to select the right functionality for your application. This modular system provides the possibility to upgrade to digital communications as well as enable the fitment of a local manual control and a variety of glands and quick connectors.
Pneumatic Module
The patented, reliable diaphragm/poppet design offers a high air volume capacity without the need for filtered air required by conventional spool or solenoid valves. Most importantly however it provides a reliable, long working life. A breather function, standard on single acting versions provides protection of the actuator spring chamber in applications where the actuator is located in an aggressive corrosive atmosphere. As an option the Pneumatic Module can be equipped with a speed control.
Dual Stroke Limit Stops
FieldQ actuators are factory set on a rotational travel of 90°±0.5°. Two limit stops are available as standard to adjust either the open and/or closed position. With the dual stroke limit stops, a wide variety of valve applications, like metal seated or high performance valves, can be adjusted accurately to their specific requirements.
Intelligent Position Tracking Device
IPT technology™ allows the integration of controls and feedback in a single product - providing continuous position tracking, with contactless position sensing and feedback. A separate switch box, found on other actuators, has been replaced by an integrated sensor on the pinion. This continuously monitors movement and communicates feedback to the Control Module and back to the control room, as required.
Pinion
Precision-machined anti-blow-out pinion is made of high duty aluminum alloy and hard anodized for optimum performance and durability. Three part pinion design is balanced, reducing pressure forces on the pinion thrust, radial bearings and the O-ring seals. This ensures low maintenance requirements in high cycle applications. Seals are designed to minimize crevices, providing maximum protection against corrosion. The Delrin radial bearing on the pinion bottom is made as wide as possible to minimize friction and ensure a durable and smooth operation.
Limit Stop Cam
The large diameter, high tensile steel, limit stop cam ensures accurate and lasting stroke adjustment.
Body
Superior materials and coatings provide optimum strength and corrosion resistance, ensuring long service life and minimal maintenance through corrosion issues.
Piston
The large piston rack is precision-machined and chromatized for optimum performance and lasting durability. Nitrile rubber O-ring seals and the 3 point guiding system ensure a durable, air tight and smooth operation.
Spring Package
Single acting actuators up to size Q350 have spring packages for safe and easy disassembly, requiring only standard Allen keys.
End Cap
End caps on double acting versions Housing Guide Band are flat, reducing overall length.
End Cap Screws
Valve Flange All external fasteners are stainless
Housing Guide Band
Wide Nylatron® guide band provides wear protection between housing and piston, extending actuator life in the most severe and demanding conditions.
Valve Flange
FieldQ actuators are all provided with valve flanges according to ISO 5211. Most sizes have two drilling patterns and together with the insert provide a low cost and versatile direct valve mounting. For mounting according to DIN3337 the glass filled nylon centre plate is added to the actuators flange, providing additional location of the actuator to the mounting bracket.
