BTS 84


The BTS 84 is a double-action floor spring which has been specially developed for the aluminum and toughened glass door industries. The BTS 84 has many of the features of the other DORMA BTS closers with the addition of reduced depth and an array of accessories designed for the aluminum door fabricator and toughened glass door manufacturer.

Successfully third party tested to BS EN1154

CE Marked

  • Concealed unit
  • Special shallow design
  • Easy installation
  • Optional hold-open

Benefits for the trade/distributor

 Reduced stocking requirements thanks to separate, interchangeable spindles

  • Streamlined product range offering all key functions

 Benefits for the installer

 Suitable for installation with LH or RH single and double action doors

  • Interchangeable spindles enable easy adaptation to structural conditions – even when retrofitted

 Benefits for the architect/specifier

 Concealed installation for maximum visual elegance

  • All essential functions provided
  • Proven, robust design

 Benefits for the user

 Constant, temperature independent closing cycle

  • Highly efficient mechanism gives maximum user convenience

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