Abstract: Disclosed is a device for pressurizing a viscous fluid contained in a drum, the device includes a follower plate vertically movable along a perpendicular axis passing through the center of the drum, the follower plate: is movable between a first position outside the drum and a second position inside the drum, to exert pressure on the viscous fluid; has a transfer port intended to be connected to a means of pumping capable of transferring the pressurized fluid. The device further includes an energy storage unit and restoration connected to the support system, the storage unit being capable of storing energy under the effect of the pressure exerted by the support system and of restoring it to the follower plate in order to maintain the viscous fluid under pressure.

Abstract: Disclosed is a device for pressurizing a viscous fluid contained in a drum, the device includes a follower plate vertically movable along a perpendicular axis passing through the center of the drum, the follower plate: is movable between a first position outside the drum and a second position inside the drum, to exert pressure on the viscous fluid; has a transfer port intended to be connected to a means of pumping capable of transferring the pressurized fluid. The device further includes an energy storage unit and restoration connected to the support system, the storage unit being capable of storing energy under the effect of the pressure exerted by the support system and of restoring it to the follower plate in order to maintain the viscous fluid under pressure.