Collar
| Construction Type | Fire protection closure as part of track-bound conveyor systems |
| Closing direction | Intumescent swelling on all sides |
| Fire resistance | Based on 1634-1 |
| Closing cycles | Not required, because there are no moving parts |
| Re-opening | not required |
| Conveyor system | Continuous roller conveyor system | Continuous suspension chain conveyor | Continuous belt conveyor system | Circular conveyor |

