Control device , comprising: - a valve body with at least one internal cavity for the passage of fluid, a first opening for the passage of fluid, a second opening for the passage of fluid, a pilot opening (P); - a main piston axially movable in said cavity with the possibility of assuming at least one closed position, in which the main piston closes a passage section between said first opening and said second opening , and at least one opening position, in which the main piston opens said passage section; - actuating means arranged at a first end of said main piston for exerting an axial force on said main piston ; - first sealing means on said main piston for defining a first sealing area between said second opening and a second end of said main piston opposite to said first end; - a piloting piston that is movable coaxially to said main piston within a piloting chamber inside said valve body ; - piloting shutter means arranged to interact with said piloting piston to control a passage of fluid between said pilot opening (P) and said piloting chamber ; - throttling means arranged to generate a throttling between said pilot opening (P) and said piloting chamber ; - unidirectional means arranged in parallel with respect to said throttling means ; characterized by comprising: - an auxiliary piston that is movable coaxially to said main piston , a first end of said auxiliary piston facing said second end of said main piston , a second end of said auxiliary piston facing a first end of said piloting piston , said piloting chamber being delimited at least in part by said second end of said auxiliary piston . - a valve body with at least one internal cavity for the passage of fluid, a first opening for the passage of fluid, a second opening for the passage of fluid, a pilot opening (P); - a main piston axially movable in said cavity with the possibility of assuming at least one closed position, in which the main piston closes a passage section between said first opening and said second opening , and at least one opening position, in which the main piston opens said passage section; - actuating means arranged at a first end of said main piston for exerting an axial force on said main piston ; - first sealing means on said main piston for defining a first sealing area between said second opening and a second end of said main piston opposite to said first end; - a piloting piston that is movable coaxially to said main piston within a piloting chamber inside said valve body ; - piloting shutter means arranged to interact with said piloting piston to control a passage of fluid between said pilot opening (P) and said piloting chamber ; - throttling means arranged to generate a throttling between said pilot opening (P) and said piloting chamber ; - unidirectional means arranged in parallel with respect to said throttling means ; - an auxiliary piston that is movable coaxially to said main piston , a first end of said auxiliary piston facing said second end of said main piston , a second end of said auxiliary piston facing a first end of said piloting piston , said piloting chamber being delimited at least in part by said second end of said auxiliary piston . <EOS>