IQ technology extended to direct drive quarter turn

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The new IQT electric actuator from Rotork brings the advantages of proven, market-leading intelligent and non-intrusive control technologies to the compact, direct drive actuation of quarter-turn valves.

旋转pioneered intelligent valve actuation in the early 1990's with the launch of the original IQ multi-turn actuator. Now in its second generation, IQ continues to lead the industry with benchmark Rotork innovations including permanent environmental double-sealing, infra-red non-intrusive commissioning and communication, on-board data logger, rationalised system on a chip electronics and comprehensive control and indication flexibility. The IQT incorporates these features within a compact, dedicated quarter-turn mechanical package designed for the efficient, direct drive operation of valves requiring torques up to 2000Nm.

Advanced IQT motor technology operates from 3-phase, single phase or DC electrical supplies, with the motor always running in the correct direction, irrespective of supply type and connection. In addition, the output speed can be non-intrusively adjusted over a 4:1 range without affecting the output torque.

The IQT's infra-red control interface is identical to the IQ multi-turn actuator, using the same hand-held setting tool to non-intrusively commission the actuator by means of user-friendly menus displayed on the actuator's help screens with or without mains power connected.

Dedicated Rotork IQ-Insight PC software uses the same link to enable actuator interrogation, analysis and re-programming, either in the field by direct connection to a laptop, or using a PDA running IQ Pocket-Insight to upload from the actuator and download later to a PC. The actuator's integral data logger stores operational data in historical order, including valve torque profiles that can be used for predictive valve maintenance.

All IQT actuators incorporate a double-sealed, permanently watertight enclosure conforming to IP68 (NEMA 4, 4X and 6). Hazardous area actuators are fully approved to the latest ATEX standards. Valve drive couplings comply to either ISO 5211 or MSS SP-101. Connectivity options include Foundation Fieldbus, Profibus and DeviceNet open systems, as well as Rotork's own dedicated Pakscan system and In-Vision PC based SCADA software.