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Tank Containers

Discharge Guide

Gravity discharge.

The cargo flows freely through the bottom outlet to low-level storage tanks. Ensure adequate venting to prevent damage caused by vacuum.

Pressure discharge.

The cargo is discharged through the top or bottom outlets by top pressure in the tank container. If the top outlet is used a Syphon Tube and Top valve must be installed.

Products carried under an inert gas blanket are normally discharged using nitrogen or another inert gas as the pressure medium. The maximum working pressure of the tank must under no circumstances be exceeded.

Pumped discharge.

When using a high capacity pump it is recommended that a vacuum safety valve is incorporated in the suction line to protect the tank from vacuum collapse.

The suction side of a suitable pump may be connected to the top or the bottom outlets or to a hose via the manhole to pump the cargo to higher level storage tanks. Air or gas must be allowed into the tank container to replace the cargo being discharged. Depending on the nature of the cargo this can be achieved by opening the manlid or air-line connection, or by connection to an inert gas supply.

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