A connector (10, 200, 250, 280, 290, 300) configured to fluidly connect a first fluid system to a second fluid system, comprising: a connector body that includes a generally hollow, tubular sleeve, and a piston slideably disposed within the sleeve, the piston including an internal axial fluid passageway extending through a front end thereof and a radial fluid passage connected to the axial fluid passageway; and a connection mechanism connected to the connector body and configured to connect the connector to the second fluid system, the connection mechanism being actuatable to achieve connection with and disconnection from the second fluid system, and the connection mechanism defining a fluid passage that is in fluid communication with the internal axial fluid passageway and the radial fluid passage of the piston to provide fluid communication between the first fluid system and the second fluid system through the connector; characterized by a drive mechanism that includes an electric motor having a drive shaft connected to a reduction mechanism, wherein the reduction mechanism includes an output that is fixed to a screw drive for rotating the screw drive, the screw drive extending into a hollow portion at a rear of the piston, wherein a drive nut is threaded onto the screw drive, and an exterior surface of the drive nut is threaded and screwed into an open rear end of the piston, whereby the drive nut is fixed to the piston and the piston moves with the drive nut, wherein as the screw drive is rotated, the drive nut is driven forwardly toward the connection mechanism or driven rearwardly away from the connection mechanism, wherein a threaded fitting is threaded into the radial passage and forms a means to connect to the first fluid system, wherein the tubular sleeve includes an elongated slot formed therethrough, the elongated slot in the tubular sleeve accommodates rearward and forward movements of the piston, and the threaded fitting protrudes through the slot to limit rotational movement of the piston, wherein the tubular sleeve has an externally threaded back end and an externally threaded front end, and wherein a hexagonal nut is threaded onto the externally threaded back end of the tubular sleeve and connects the drive mechanism to the tubular sleeve, and the connection mechanism includes a cap or a second sleeve, the cap or the second sleeve being threaded onto the externally threaded front end of the tubular sleeve. a connector body that includes a generally hollow, tubular sleeve, and a piston slideably disposed within the sleeve, the piston including an internal axial fluid passageway extending through a front end thereof and a radial fluid passage connected to the axial fluid passageway; and a connection mechanism connected to the connector body and configured to connect the connector to the second fluid system, the connection mechanism being actuatable to achieve connection with and disconnection from the second fluid system, and the connection mechanism defining a fluid passage that is in fluid communication with the internal axial fluid passageway and the radial fluid passage of the piston to provide fluid communication between the first fluid system and the second fluid system through the connector; characterized by a drive mechanism that includes an electric motor having a drive shaft connected to a reduction mechanism, wherein the reduction mechanism includes an output that is fixed to a screw drive for rotating the screw drive, the screw drive extending into a hollow portion at a rear of the piston, wherein a drive nut is threaded onto the screw drive, and an exterior surface of the drive nut is threaded and screwed into an open rear end of the piston, whereby the drive nut is fixed to the piston and the piston moves with the drive nut, wherein as the screw drive is rotated, the drive nut is driven forwardly toward the connection mechanism or driven rearwardly away from the connection mechanism, wherein a threaded fitting is threaded into the radial passage and forms a means to connect to the first fluid system, wherein the tubular sleeve includes an elongated slot formed therethrough, the elongated slot in the tubular sleeve accommodates rearward and forward movements of the piston, and the threaded fitting protrudes through the slot to limit rotational movement of the piston, wherein the tubular sleeve has an externally threaded back end and an externally threaded front end, and wherein a hexagonal nut is threaded onto the externally threaded back end of the tubular sleeve and connects the drive mechanism to the tubular sleeve, and the connection mechanism includes a cap or a second sleeve, the cap or the second sleeve being threaded onto the externally threaded front end of the tubular sleeve.