| CPC F16J 15/185 (2013.01) [F16J 15/184 (2013.01)] | 19 Claims |

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1. A device for tensioning a stuffing box packing which abuts against a superordinate assembly which is to be sealed by the stuffing box packing and which, like the stuffing box packing, does not belong to the tensioning device, the device comprising:
a stuffing box gland, which is designed and intended to abut against a free side of the stuffing box packing; and
a plurality of tensioning elements which are designed and intended to press the stuffing box gland against the stuffing box packing and thus the stuffing box packing against the superordinate assembly,
wherein a separate motor drive unit is associated with each of the tensioning elements, and
wherein at least one of the motor drive units comprises a reduction gear.
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