Rotork assists BAE Systems in naval base actuator upgrades

Rotork has been working with BAE Systems to improve a sequence of A-range actuators to IQ3 actuators which operate penstocks controlling movement of ships between the ocean and transitional locks and dry docks at Her Majesty’s Naval Base Portsmouth (HMNB Portsmouth).
Painless of A-range actuators had reached the tip of their operational life after long service in a difficult setting. BAE Systems needed to retain all the benefits of electric actuators, so IQ3 actuators were chosen. These had to be specifically adapted by Rotork to overcome issues round confined areas and difficult access.
IQ3 actuators and IS gearboxes had been mechanically tailored in order that both actuator and gearbox might be operated by hand without coming into the confined space. Rotork designed particular hand auto levers and thru drive mechanisms for the actuator and gearbox to eliminate the need for confined space access.
Actuators inside the IQ vary are watertight, providing ingress protection to IP66/68 at 20 m for 10 days. They have a sophisticated dual stacked display with configurable data logger functionality, and an absolute position sensor offers reliability and accuracy.

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