Automatic Drop Seal by Norsound

  • • BS 476 Part 20/22 Compliant
  • • Lightweight operation
  • • Protects against smoke
  • • Self-levelling
  • • Sound reduction up to 55dBRw
  • • Spring loaded
  • • Unobtrusive
Buy online

Norsound’s new and improved NOR810S® comes with all new enhancements that make it our most clever door bottom seal to date.

The NOR810S® was originally designed as a smaller version of our NOR810, manufactured to provide acoustic performance up to 35dB as well as satisfying both the BS 476: Part 22 fire & BS 476: Part 31.1 cold smoke standard.

Included with the NOR810S® is a lightweight self-levelling mechanism that aids its operation on uneven surfaces. It is extremely robust, surpassing 1,000,000 cycles with ease. Its smaller case size is especially advantageous to door manufacturers, saving routing time.

Length Code
325mm NOR810S-325
425mm NOR810S-425
525mm NOR810S-525
625mm NOR810S-625
725mm NOR810S-725
825mm NOR810S-825
925mm NOR810S-925
1025mm NOR810S-1025
1125mm NOR810S-1125
1225mm NOR810S-1225