Apparatus for the controlled delivery of a gas from a mobile container , wherein said apparatus comprises: - a gas flow measurement and regulation unit configured to measure and regulate a flow of the gas from the mobile container ; - a connection unit configured to connect the gas flow measurement and regulation unit to said mobile container , said connection unit comprising a connection member associated with a deliverer of said mobile container by means of an anchoring member with two positions; - an actuator element configured to define said two positions of said anchoring member , - a management unit coupled to the gas flow measurement and regulation unit , the management unit being configured to control and manage said gas flow measurement and regulation unit , on the basis of information correlated to a quantity of said gas to be delivered; - a clamping element configured to cooperate with said actuator element , or a connection body connected to said actuator element , in order to allow, during use, said actuator element to rotate around its own longitudinal axis for a rotation portion defined so as to allow at least one of the delivery of the gas or an interruption of the delivery of the gas; characterized in said actuator element being conditioned by a key connectable to a lock present in said actuator element , the apparatus further comprising one or more security pins being inserted inside the actuator element and configured to prevent a rotation of said actuator element , wherein the security pins are removable using said key and wherein when said security pins are inserted inside the actuator element the apparatus cannot be removed from the mobile container ; - an electronic clamping device configured to hold said clamping element in position and to free said clamping element responsively to receiving a command signal from said management unit . - a gas flow measurement and regulation unit configured to measure and regulate a flow of the gas from the mobile container ; - a connection unit configured to connect the gas flow measurement and regulation unit to said mobile container , said connection unit comprising a connection member associated with a deliverer of said mobile container by means of an anchoring member with two positions; - an actuator element configured to define said two positions of said anchoring member , - a management unit coupled to the gas flow measurement and regulation unit , the management unit being configured to control and manage said gas flow measurement and regulation unit , on the basis of information correlated to a quantity of said gas to be delivered; - a clamping element configured to cooperate with said actuator element , or a connection body connected to said actuator element , in order to allow, during use, said actuator element to rotate around its own longitudinal axis for a rotation portion defined so as to allow at least one of the delivery of the gas or an interruption of the delivery of the gas; - an electronic clamping device configured to hold said clamping element in position and to free said clamping element responsively to receiving a command signal from said management unit . <EOS>