Rotork assists BAE Systems in naval base actuator upgrades

Rotork has been working with BAE Systems to upgrade a sequence of A-range actuators to IQ3 actuators which function penstocks controlling motion of ships between the ocean and transitional locks and dry docks at Her Majesty’s Naval Base Portsmouth (HMNB Portsmouth).
A collection of A-range actuators had reached the tip of their operational life after lengthy service in a difficult environment. BAE Systems wanted to retain all the benefits of electrical actuators, so IQ3 actuators have been chosen. These had to be specially tailored by Rotork to beat problems round confined spaces and troublesome entry.
Improved and IS gearboxes were mechanically adapted in order that both actuator and gearbox could probably be operated by hand without entering the confined space. Rotork designed special hand auto levers and through drive mechanisms for the actuator and gearbox to get rid of the necessity for confined area entry.
Actuators inside the IQ range are watertight, offering ingress safety to IP66/68 at 20 m for 10 days. Premiere have a sophisticated twin stacked display with configurable knowledge logger performance, and an absolute position sensor supplies reliability and accuracy.
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