System Schröders RSI-V delayed-release bottom seal
Effective solution for self-closing doors in small, unventilated rooms
In smaller rooms without ventilation, it frequently happens that self-closing doors do not close completely. This is due to the fact that during the closing process, air cannot escape from the room sufficiently, and the air pressure thus prevents complete closure.
A fire resistance door that is not fully closed can entail significant safety risks in terms of fire and smoke control. For this problem, System Schröders offers an innovative and cost-effective solution with its delayed-release bottom seal RSI-V.
Challenge: Overpressure prevents complete closure
Fire and smoke control doors must close automatically according to regulation to ensure the protection of people and property. In some cases, however, complete closure does not occur – particularly in small, airtight rooms such as personnel airlocks. During the closing process, overpressure develops in the room to be sealed, which prevents the door from fully engaging in the lock and sealing tightly. Smoke or fire can then penetrate unhindered through open gaps, meaning the protective function of the door is no longer ensured.
Conventional solution: Ventilation systems are often cost-intensive
A common measure to resolve this problem is the installation of a separate ventilation system. This allows the air generated during closing to escape, so that the door closes without issue. However, such systems are frequently associated with high costs and construction effort, which is why they are not economically viable in every case.
Smart System Schröders solution: Delayed-release bottom seal RSI-V
System Schröders offers a smart and cost-effective alternative with the RSI-V. This special bottom seal allows the overpressure to escape initially during the closing process. Only afterwards does the seal lower with time delay and reliably seal the bottom door gap. This delay ensures that the door closes completely and the required fire protection is maintained.
Advantages of the System Schröders bottom seal RSI-V
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Optimised fire protection:
The door closes reliably, so that no smoke or fire can penetrate. -
Cost efficiency:
An expensive retrofit with additional ventilation systems is often not required. -
Simple installation:
The seal is approved for all System Schröders fire resistance and smoke control doors and can be easily retrofitted.
Approved for System Schröders fire resistance and smoke control doors
The time-delayed closing bottom seal System Schröders RSI-V is tested and approved for fire resistance doors and smoke control doors from the System Schröders ModulSystem.
With the bottom seal RSI-V, System Schröders offers an intelligent solution for a known problem and ensures that fire protection doors retain their full functionality even under unfavourable spatial conditions.