Securing product storage tanks against unauthorized delivery

A system that prevents unauthorized product delivery to a product container including a product entry port, the system comprising:

• a remote controlled valve cooperable with the product entry port, the remote controlled valve providing selective access to the product container and comprising:
• a disk flap covering the product entry port that is displaceable between an opened position and a closed position,
• a disk displacement assembly including a motor coupled with the disk flap, the disk displacement assembly including a lock feature that locks the disk flap in the opened position and the closed position, and
• a controller cooperable with the disk displacement assembly and controlling activation of the motor,
• wherein the disk displacement assembly includes a spring transmission assembly interposed between and acting between the motor and an axle of the disk flap, the spring transmission assembly permitting displacement of the motor when the disk flap is blocked in the opened position or the closed position;
• and
• a command control unit cooperable with a delivery source, the command control unit being programmed to establish authorized communication with the controller of the remote controlled valve and to effect authorized operation of the remote controlled valve.