For quarter-turn valves such as butterfly valves, ball valves and dampers; generally on/off or ordinary modulating duty. Main models: OA, AS, BS, UX.
Patented cam-group travel control: easy setting without special tools; vibration-resistant; high accuracy — four adjustable cams.
For multi-turn valves such as gate valves, slide valves and plug valves; with a quarter-turn gear reduction it can drive large butterfly/ball valves directly. Generally on/off or ordinary modulating duty; main models: ST series.
Designed for high-precision, frequently modulating duty (100% duty): part-turn, multi-turn and linear; models MA, MB, MAS, MBS, UX. 100% duty; multiple options.
On signal loss or power failure the valve returns automatically to a preset safe position. Part-turn, multi-turn and linear versions; main models FQ, FL. Spring-energy technology.
Bernard's new generation of nuclear-plant actuators is IEEE certified — the fruit of 25 years of experience with electric valves inside and outside the nuclear island, covering part-turn, multi-turn and high-precision full-duty modulating actuators with matching control systems. RCCE certified, applied in over 70 nuclear reactors worldwide.
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