Self-resetting shut-off valve

A shut-off valve comprising:

• a first chamber comprising an inlet mouth for a fluid, said inlet mouth being connectable to an inlet duct upstream of the first chamber,
• a second chamber in fluid communication with the first chamber and placed downstream of the first chamber, said second chamber comprising an outlet mouth for a fluid, said outlet mouth being connectable to an outlet duct downstream of the second chamber;
• a connection opening between the first chamber and the second chamber;
• adjustment members switchable between a closing configuration and an opening configuration, the adjustment members comprising:
• a first adjustment element at least in part inserted in the second chamber and configured to translate with respect to the opening and parallel to a main direction at least from a proximal position to a distal position to switch from the opening configuration to the closing configuration;
• a second adjustment element connected to the first adjustment element and configured to translate parallel to the main direction from a first position to a second position to switch from the opening configuration to the closing configuration,
• elastic return members configured to elastically deform between an extended configuration and a retracted configuration, said elastic return members being arranged at least at the first adjustment element to switch it between the distal and proximal positions;
• an intermediate adjustment element, connected to the first adjustment element and configured to translate parallel to the main direction from a proximal position to a distal position to switch from the opening configuration to the closing configuration
• a closing element configured to translate parallel to the main direction to be sealingly arranged at the opening and interrupt the fluid communication between the first chamber and the second chamber,
• a switch activatable by said second adjustment element, connected to the closing element and configured to prevent or allow the translation of said closing element.