Rotork assists BAE Systems in naval base actuator upgrades

Rotork has been working with BAE Systems to upgrade a series of A-range actuators to IQ3 actuators which operate penstocks controlling motion of ships between the ocean and transitional locks and dry docks at Her Majesty’s Naval Base Portsmouth (HMNB Portsmouth).
Controversial of A-range actuators had reached the end of their operational life after long service in a difficult environment. BAE Systems needed to retain all the advantages of electrical actuators, so IQ3 actuators were chosen. These had to be specifically adapted by Rotork to beat problems round confined areas and tough entry.
IQ3 actuators and IS gearboxes had been mechanically tailored so that both actuator and gearbox could probably be operated by hand without entering the confined space. Rotork designed particular hand auto levers and thru drive mechanisms for the actuator and gearbox to remove the need for confined area entry.
Actuators throughout the IQ range are watertight, providing ingress safety to IP66/68 at 20 m for 10 days. They have a sophisticated dual stacked display with configurable data logger functionality, and an absolute place sensor provides reliability and accuracy.

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