Electronic pressure regulator

An electronic pressure regulator, comprising:

• an inlet duct, an intermediate duct, and an outlet duct;
• and
• a first, mechanical, valve set between said inlet duct and said intermediate duct, and a second, electronic, valve set between said intermediate duct and said outlet duct;
• wherein said first, mechanical, valve comprises:
• a regulation element rigidly connected to a piston of said first, mechanical, valve, the piston being slidably mounted in a cylinder of said first, mechanical, valve, thus defining a first chamber of said cylinder and a second chamber of said cylinder that are fluidically separated by said piston;
• a first elastic element housed in said first chamber and configured to push said piston in the direction of opening of said first, mechanical, valve;
• and
• a fluid duct configured to set in fluid communication said intermediate duct and said second chamber of said cylinder so that the pressure in said intermediate duct pushes said piston in the direction of closing of said first, mechanical, valve;
• said electronic pressure regulator comprising a further fluid duct configured to set in fluid communication said outlet duct and said first chamber of said cylinder so that the pressure in said outlet duct pushes said piston in the direction of opening of said first, mechanical, valve.