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 sea and transitional locks and dry docks at Her Majesty’s Naval Base Portsmouth (HMNB Portsmouth).
A sequence of A-range actuators had reached the end of their operational life after long service in a difficult setting. BAE Systems wanted to retain all the benefits of electrical actuators, so IQ3 actuators had been chosen. These had to be specially tailored by Rotork to beat problems round confined areas and difficult access.
Approved and IS gearboxes were mechanically adapted so that both actuator and gearbox might be operated by hand without getting into the confined house. Rotork designed special hand auto levers and thru drive mechanisms for the actuator and gearbox to eliminate the necessity for confined area access.
Actuators throughout the IQ range are watertight, providing ingress protection to IP66/68 at 20 m for 10 days. They have an advanced dual stacked show with configurable data logger functionality, and an absolute position sensor provides reliability and accuracy.
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