To meet the environmental conditions at Sellafield they are protected with several Winn & Coales (Denso) Ltd’s robust Denso coating systems.
The actuator housings are made from aluminium and also have steel drive shafts. Two actuators are mounted together with a mild steel box section support frame.
All the parts were shot blasted to remove the old paint coatings. They were then spray coated with Denso Galvprime, followed by a Denso Steelcoat system consisting of two coats of Denso ST Epoxy followed by two coats of a polyurethane-based top coat of Denso Weathershield. All parts were then rebuilt and witness tested to the satisfaction of Sellafield inspectors.
