In the case of loss-in-weight systems, the operator takes the drum via the roller conveyor directly underneath the glove box. The drum is positioned by means of the lifting device.

Then the operator fixes the outer liner at the double O-ring port using a clamping ring. He removes the residues of the previous liner using the gloves and temporarily stores them in the glove box.

The drum is then pressed against the gasket at the bottom of the glove box and fixed using the lifting device. The inner liner (product liner) is opened, stabilised with a ring and sealed by means of an inflatable seal.

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