Abstract: An apparatus (1) for making plastic containers by blow-moulding parisons comprises: a mould (2) having at least one moulding cavity; a base (3) mounted over the mould (2), forming at least one passage (4) connected to a high-pressure fluid source; a blow nozzle (7) forming at least one conduit and connected to a bottom face (5) of the base (3) to be positioned between the base (3) and the mould (2) in such a way that the conduit is in fluid communication with the passage (4) to receive the high-pressure fluid and convey it into the moulding cavity; fastening means for coupling and uncoupling the blow nozzle (7) to and from the base (3); at least one pin (10) protruding from the nozzle (7) to be inserted into a respective through hole in the base (3) with an end portion (12) of it positioned above a top face (6) of the base (3); a fastening element (13) connected to the base (3) to be movable from an unlocked position, where it does not interfere with the pin (10), to a locked position where it is inserted in

Abstract: A plant for blow-moulding plastic containers (2) from respective parisons (3) comprises a plurality of moulding units (10), each having a mould (11) for blow-moulding at least one container (2) and at least one stretching rod (14) that moves under the action of a drive device (16) in such a way as to axially deform a respective parison (3); the drive device (16) comprises, for each moulding unit (10) drive motor (17) coupled to the stretching rods (14) of the moulding unit (10) itself.