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.
Certified manufactur to ISO 9001
Benefits for the installer/fabricator Easy installation thanks to shallow design Easy to adapt to individual requirements with dual valve control 130 to 0 and 130 to 20 Interchangeable spindle inserts available to suit site conditions Benefits for the architect/specifier Concealed unit for almost invisible installation Minimum floor recess dimensions Proven, robust unit for door weights up to 100 kg