Abstract: A system and method prevent product-type contamination in a bulk liquid storage tank. A control unit receives an indication of a storage product type in the bulk storage and a delivery product type in the tanker truck. The control unit compares the delivery product type with the storage product type and controls delivery based on a result of the comparison.

Abstract: A system and method prevent product-type contamination in a bulk liquid storage tank. A control unit receives an indication of a storage product type in the bulk storage and a delivery product type in the tanker truck. The control unit compares the delivery product type with the storage product type and controls delivery based on a result of the comparison.

Abstract: A system prevents unauthorized delivery of product to a bulk storage tank, allows authorized delivery, and controls the flow of product at a product entry port of the tank. A remote controlled valve includes a disk flap that is displaceable between an opened position and a closed position, and a disk displacement assembly including a motor coupled with the disk flap. The disk displacement assembly includes a lock feature that locks the disk flap in the opened position and the closed position. A controller is cooperable with the disk displacement assembly and controls activation of the motor. The disk displacement assembly includes a spring transmission assembly interposed between the motor and an axle of the disk flap. The spring transmission assembly permits displacement of the motor when the disk flap is blocked in the opened position or the closed position.

Abstract: A system prevents unauthorized delivery of product to a bulk storage tank, allows authorized delivery, and controls the flow of product at a product entry port of the tank. A remote controlled valve includes a disk flap that is displaceable between an opened position and a closed position, and a disk displacement assembly including a motor coupled with the disk flap. The disk displacement assembly includes a lock feature that locks the disk flap in the opened position and the closed position. A controller is cooperable with the disk displacement assembly and controls activation of the motor. The disk displacement assembly includes a spring transmission assembly interposed between the motor and an axle of the disk flap. The spring transmission assembly permits displacement of the motor when the disk flap is blocked in the opened position or the closed position.